From e1276731f1aaf3a88b949dfbe02b6a6a81d9d4b3 Mon Sep 17 00:00:00 2001 From: fintarin Date: Tue, 30 Jan 2024 15:21:00 +0300 Subject: [PATCH] Split expression tests --- tests/CMakeLists.txt | 10 +- .../expressions/ExpressionFunctionsTests.cpp | 90 - .../src/expressions/ExpressionParserTests.cpp | 117 +- tests/src/expressions/ExpressionTests.cpp | 2479 ----------------- .../overall/approximate/ApproximateTests.cpp | 402 +++ .../simplify/SimplifyComparisonsTests.cpp | 92 + .../simplify/SimplifyComplexNumbersTests.cpp | 271 ++ .../simplify/SimplifyDerivativesTests.cpp | 312 +++ .../simplify/SimplifyDivisionTests.cpp | 97 + .../simplify/SimplifyFactorialsTests.cpp | 62 + .../simplify/SimplifyHyperbolicTests.cpp | 96 + .../simplify/SimplifyInfinitiesTests.cpp | 695 +++++ .../simplify/SimplifyIntegralsTests.cpp | 15 + .../simplify/SimplifyLogarithmsTests.cpp | 103 + .../overall/simplify/SimplifyLogicTests.cpp | 271 ++ .../overall/simplify/SimplifyMinMaxTests.cpp | 31 + .../overall/simplify/SimplifyPowersTests.cpp | 92 + tests/src/overall/simplify/SimplifyTests.cpp | 719 +++++ .../simplify/SimplifyTrigonometryTests.cpp | 803 ++++++ tests/src/overall/solve/SolveTests.cpp | 145 + 20 files changed, 4330 insertions(+), 2572 deletions(-) create mode 100644 tests/src/overall/approximate/ApproximateTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyComparisonsTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyComplexNumbersTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyDerivativesTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyDivisionTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyFactorialsTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyHyperbolicTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyInfinitiesTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyIntegralsTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyLogarithmsTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyLogicTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyMinMaxTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyPowersTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyTests.cpp create mode 100644 tests/src/overall/simplify/SimplifyTrigonometryTests.cpp create mode 100644 tests/src/overall/solve/SolveTests.cpp diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt index 8718cc889..6cf79cb6c 100644 --- a/tests/CMakeLists.txt +++ b/tests/CMakeLists.txt @@ -4,7 +4,15 @@ file( CONFIGURE_DEPENDS "src/*.cpp") -add_executable(${PROJECT_NAME}_tests ${SOURCES}) +add_executable(${PROJECT_NAME}_tests ${SOURCES} + src/overall/approximate/ApproximateTests.cpp + src/overall/solve/SolveTests.cpp + src/overall/simplify/SimplifyTests.cpp + src/overall/simplify/SimplifyInfinitiesTests.cpp + src/overall/simplify/SimplifyTrigonometryTests.cpp + src/overall/simplify/SimplifyHyperbolicTests.cpp + src/overall/simplify/SimplifyFactorialsTests.cpp + src/overall/simplify/SimplifyPowersTests.cpp) target_link_libraries(${PROJECT_NAME}_tests PRIVATE ${PROJECT_NAME} gtest_main) diff --git a/tests/src/expressions/ExpressionFunctionsTests.cpp b/tests/src/expressions/ExpressionFunctionsTests.cpp index 674ae7234..74f108d21 100644 --- a/tests/src/expressions/ExpressionFunctionsTests.cpp +++ b/tests/src/expressions/ExpressionFunctionsTests.cpp @@ -2,7 +2,6 @@ #include "fintamath/expressions/ExpressionFunctions.hpp" -#include "fintamath/exceptions/UndefinedException.hpp" #include "fintamath/literals/Variable.hpp" using namespace fintamath; @@ -314,92 +313,3 @@ TEST(ExpressionFunctionsTests, negInfTest) { TEST(ExpressionFunctionsTests, complexInfTest) { EXPECT_EQ(complexInf().toString(), "ComplexInf"); } - -TEST(ExpressionFunctionsTests, solveTest) { - EXPECT_EQ(solve(Expression("x - 10 = 0")).toString(), "x = 10"); - EXPECT_EQ(solve(Expression("-10 - x = 0")).toString(), "x = -10"); - - EXPECT_EQ(solve(Expression("z - 10 - I = 0")).toString(), "z = 10 + I"); - EXPECT_EQ(solve(Expression("(6 + 3I)^2 = 4I - 30z")).toString(), "z = -9/10 - 16/15 I"); - - EXPECT_EQ(solve(Expression("x^2 - 10 = 39")).toString(), "x = -7 | x = 7"); - EXPECT_EQ(solve(Expression("x^2 = 0")).toString(), "x = 0"); - EXPECT_EQ(solve(Expression("x^2 = 1")).toString(), "x = -1 | x = 1"); - EXPECT_EQ(solve(Expression("x^2 - 2x - 3 = 0")).toString(), "x = -1 | x = 3"); - EXPECT_EQ(solve(Expression("15 - 2x - x^2 = 0")).toString(), "x = -5 | x = 3"); - EXPECT_EQ(solve(Expression("x^2 + 12x + 36 = 0")).toString(), "x = -6"); - EXPECT_EQ(solve(Expression("x^2 + 12x = 0")).toString(), "x = -12 | x = 0"); - EXPECT_EQ(solve(Expression("x^2 - 23x - 3 = 0")).toString(), "x = -sqrt(541)/2 + 23/2 | x = sqrt(541)/2 + 23/2"); - EXPECT_EQ(solve(Expression("-12x^2 - 23x + 30 = 0")).toString(), "x = -sqrt(1969)/24 - 23/24 | x = sqrt(1969)/24 - 23/24"); - EXPECT_EQ(solve(Expression("-33x^2 - x + 34 = 0")).toString(), "x = -34/33 | x = 1"); - EXPECT_EQ(solve(Expression("2x^2 + 2sqrt(2)x + 1 = 0")).toString(), "x = -sqrt(2)/2"); - - EXPECT_EQ(solve(Expression("x^2 = -1")).toString(), "x = -I | x = I"); - EXPECT_EQ(solve(Expression("x^2 + 4x + 5 = 0")).toString(), "x = -2 - I | x = -2 + I"); - EXPECT_EQ(solve(Expression("2x^2 + x + 1 = 0")).toString(), "x = -(I sqrt(7))/4 - 1/4 | x = (I sqrt(7))/4 - 1/4"); - EXPECT_EQ(solve(Expression("x^2 + 3x + 5 = 0")).toString(), "x = -(I sqrt(11))/2 - 3/2 | x = (I sqrt(11))/2 - 3/2"); - - // TODO: implement cubic equations - EXPECT_EQ(solve(Expression("x^3 - 3x^2 + 3x - 1 = 0")).toString(), "x^3 - 3 x^2 + 3 x - 1 = 0"); // TODO: x = 1 - // EXPECT_EQ(solve(Expression("x^3 - 6x^2 + 11x - 6 = 0")).toString(), "x = 1 | x = 2 | x = 3"); - // EXPECT_EQ(solve(Expression("x^3 + 2x^2 - 5x - 6 = 0")).toString(), "x = -3 | x = -1 | x = 2"); - // EXPECT_EQ(solve(Expression("x^3 = 0")).toString(), "x = 0"); - // EXPECT_EQ(solve(Expression("x^3 + 1 = 0")).toString(), "x = -1"); - // EXPECT_EQ(solve(Expression("x^3 - 1 = 0")).toString(), "x = 1"); - // EXPECT_EQ(solve(Expression("x^3 + 2x^2 + x = 0")).toString(), "x = -1 | x = 0"); - // EXPECT_EQ(solve(Expression("-x^3 + 5x^2 - 8x + 4 = 0")).toString(), "x = 1 | x = 2"); - // EXPECT_EQ(solve(Expression("-2x^3 + 4x^2 + 4x - 8 = 0")).toString(), "x = -1 | x = 1 | x = 2"); - // EXPECT_EQ(solve(Expression("2x^3 - 3x^2 - 11x + 6 = 0")).toString(), "x = -2 | x = 1/2 | x = 3"); - // EXPECT_EQ(solve(Expression("3x^3 - 3x^2 - 12x - 8 = 0")).toString(), - // "1/9 (3 + (1485 - 162 sqrt(23))^(1/3) + 3 (55 + 6 sqrt(23))^(1/3))"); - - EXPECT_EQ(solve(Expression("x < 1")).toString(), "x < 1"); - EXPECT_EQ(solve(Expression("x < -10")).toString(), "x < -10"); - EXPECT_EQ(solve(Expression("x! = 0")).toString(), "x! = 0"); - - // TODO: implement quadric inequalities - EXPECT_EQ(solve(Expression("x^2 + 2 x - 1 < 0")).toString(), "x^2 + 2 x - 1 < 0"); - - EXPECT_EQ(solve(Expression("15x^2 + sin(25)x - 10% = Ey")).toString(), "x^2 + (sin(25) x)/15 - (E y)/15 - 1/150 = 0"); - EXPECT_EQ(solve(Expression("x + x_1 + x_2 + y + y_1 = 0")).toString(), "x + x_1 + x_2 + y + y_1 = 0"); - EXPECT_EQ(solve(Expression("-x^a = 0")).toString(), "x^a = 0"); - EXPECT_EQ(solve(Expression("sin(x) = 0")).toString(), "sin(x) = 0"); - EXPECT_EQ(solve(Expression("x^2 + y = 0")).toString(), "x^2 + y = 0"); - EXPECT_EQ(solve(Expression("x y = 0")).toString(), "x y = 0"); - EXPECT_EQ(solve(Expression("2 x^a = 0")).toString(), "x^a = 0"); - EXPECT_EQ(solve(Expression("x^b a = 0")).toString(), "a x^b = 0"); - EXPECT_EQ(solve(Expression("x/y = 0")).toString(), "x = 0"); - EXPECT_EQ(solve(Expression("x^2 - 2*sin(2) = 0")).toString(), "x = -sqrt(8 sin(2))/2 | x = sqrt(8 sin(2))/2"); - EXPECT_EQ(solve(Expression("x = x sqrt(x)")).toString(), "x^(3/2) - x = 0"); - EXPECT_EQ(solve(Expression("x = 3^x")).toString(), "x - 3^x = 0"); - - EXPECT_EQ(solve(Expression("E = Ey")).toString(), "y = 1"); - EXPECT_EQ(solve(Expression("sin(4) = sin(4) y")).toString(), "y = 1"); - EXPECT_EQ(solve(Expression("E >= Ey")).toString(), "y <= 1"); - EXPECT_EQ(solve(Expression("sin(4) >= sin(4) y")).toString(), "y >= 1"); - EXPECT_EQ(solve(Expression("x >= x sqrt(x)")).toString(), "x^(3/2) - x <= 0"); - EXPECT_EQ(solve(Expression("x >= x^(1/100)")).toString(), "x - root(x, 100) >= 0"); -} - -TEST(ExpressionFunctionsTests, solveApproximateTest) { - Expression expr; - Variable x("x"); - - expr = pow(x + 1, 6); - EXPECT_EQ(expr.toString(), "x^6 + 6 x^5 + 15 x^4 + 20 x^3 + 15 x^2 + 6 x + 1"); - - expr = solve(expr); - EXPECT_EQ(expr.toString(), "x^6 + 6 x^5 + 15 x^4 + 20 x^3 + 15 x^2 + 6 x + 1"); - - expr = expr.approximate(2); - EXPECT_EQ(expr.toString(), "x^6 + 6 x^5 + 15 x^4 + 20 x^3 + 15 x^2 + 6 x + 1"); - - expr = pow(x + 1, 7); - EXPECT_EQ(expr.toString(), "x^7 + 7 x^6 + 21 x^5 + 35 x^4 + 35 x^3 + 21 x^2 + 7 x + 1"); - - expr = solve(expr); - EXPECT_EQ(expr.toString(), "x^7 + 7 x^6 + 21 x^5 + 35 x^4 + 35 x^3 + 21 x^2 + 7 x + 1"); - - expr = expr.approximate(2); - EXPECT_EQ(expr.toString(), "x^7 + 7 x^6 + 21 x^5 + 35 x^4 + 35 x^3 + 21 x^2 + 7 x + 1"); -} diff --git a/tests/src/expressions/ExpressionParserTests.cpp b/tests/src/expressions/ExpressionParserTests.cpp index 57f981058..63286568c 100644 --- a/tests/src/expressions/ExpressionParserTests.cpp +++ b/tests/src/expressions/ExpressionParserTests.cpp @@ -34,10 +34,123 @@ TEST(ExpressionParserTests, parseFintamathTest) { EXPECT_EQ(parseFintamath("log(4/9, 2/3)")->toString(), "log(4/9, 2/3)"); EXPECT_EQ(parseFintamath("60deg")->toString(), "60 Pi/180"); EXPECT_EQ(parseFintamath("adeg")->toString(), "a Pi/180"); +} - EXPECT_THROW(parseFintamath("(1 = 1) / 2"), InvalidInputException); +TEST(ExpressionParserTests, parseFintamathNegativeTest) { + EXPECT_THROW(parseFintamath(""), InvalidInputException); EXPECT_THROW(parseFintamath("1+"), InvalidInputException); + EXPECT_THROW(parseFintamath("1-"), InvalidInputException); + EXPECT_THROW(parseFintamath("1*"), InvalidInputException); + EXPECT_THROW(parseFintamath("1/"), InvalidInputException); + EXPECT_THROW(parseFintamath("*1"), InvalidInputException); + EXPECT_THROW(parseFintamath("/1"), InvalidInputException); + EXPECT_THROW(parseFintamath(" + "), InvalidInputException); + EXPECT_THROW(parseFintamath("(1+2))"), InvalidInputException); + EXPECT_THROW(parseFintamath("5-*3"), InvalidInputException); + EXPECT_THROW(parseFintamath("5 3 +"), InvalidInputException); + EXPECT_THROW(parseFintamath("2.2.2"), InvalidInputException); + EXPECT_THROW(parseFintamath("--"), InvalidInputException); + EXPECT_THROW(parseFintamath("."), InvalidInputException); + EXPECT_THROW(parseFintamath(","), InvalidInputException); + EXPECT_THROW(parseFintamath("/"), InvalidInputException); + EXPECT_THROW(parseFintamath(";"), InvalidInputException); + EXPECT_THROW(parseFintamath("\'"), InvalidInputException); + EXPECT_THROW(parseFintamath("["), InvalidInputException); + EXPECT_THROW(parseFintamath("]"), InvalidInputException); + EXPECT_THROW(parseFintamath("!"), InvalidInputException); + EXPECT_THROW(parseFintamath("@"), InvalidInputException); + EXPECT_THROW(parseFintamath("\""), InvalidInputException); + EXPECT_THROW(parseFintamath("#"), InvalidInputException); + EXPECT_THROW(parseFintamath("№"), InvalidInputException); + EXPECT_THROW(parseFintamath("%"), InvalidInputException); + EXPECT_THROW(parseFintamath(":"), InvalidInputException); + EXPECT_THROW(parseFintamath("?"), InvalidInputException); + EXPECT_THROW(parseFintamath("*"), InvalidInputException); + EXPECT_THROW(parseFintamath("("), InvalidInputException); + EXPECT_THROW(parseFintamath(")"), InvalidInputException); + EXPECT_THROW(parseFintamath("-"), InvalidInputException); + EXPECT_THROW(parseFintamath("+"), InvalidInputException); + EXPECT_THROW(parseFintamath("$"), InvalidInputException); + EXPECT_THROW(parseFintamath("^"), InvalidInputException); + EXPECT_THROW(parseFintamath("&"), InvalidInputException); + EXPECT_THROW(parseFintamath("_"), InvalidInputException); + EXPECT_THROW(parseFintamath("[1+1]"), InvalidInputException); + EXPECT_THROW(parseFintamath("{1}"), InvalidInputException); + EXPECT_THROW(parseFintamath(",2"), InvalidInputException); + EXPECT_THROW(parseFintamath("2,"), InvalidInputException); + + EXPECT_THROW(parseFintamath("(1"), InvalidInputException); + EXPECT_THROW(parseFintamath("(((2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("(((2))"), InvalidInputException); + EXPECT_THROW(parseFintamath("((2)))"), InvalidInputException); + EXPECT_THROW(parseFintamath("(2)))"), InvalidInputException); + EXPECT_THROW(parseFintamath("(2"), InvalidInputException); + EXPECT_THROW(parseFintamath("((2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("((2"), InvalidInputException); + EXPECT_THROW(parseFintamath("((((2)((2))))"), InvalidInputException); + EXPECT_THROW(parseFintamath("(()())"), InvalidInputException); + EXPECT_THROW(parseFintamath("((()()))"), InvalidInputException); EXPECT_THROW(parseFintamath("((((()))))"), InvalidInputException); EXPECT_THROW(parseFintamath("(,) + (,)"), InvalidInputException); - EXPECT_THROW(parseFintamath("--"), InvalidInputException); + + EXPECT_THROW(parseFintamath("!2"), InvalidInputException); + EXPECT_THROW(parseFintamath("!!2"), InvalidInputException); + EXPECT_THROW(parseFintamath("!2!!"), InvalidInputException); + EXPECT_THROW(parseFintamath("!(2"), InvalidInputException); + EXPECT_THROW(parseFintamath("!(2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("2)!"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(2))!"), InvalidInputException); + EXPECT_THROW(parseFintamath("!!!!!!"), InvalidInputException); + + EXPECT_THROW(parseFintamath("esin()"), InvalidInputException); + EXPECT_THROW(parseFintamath("(a+b)*()"), InvalidInputException); + + EXPECT_THROW(parseFintamath("sin(2,3)"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(2,3) + 2"), InvalidInputException); + EXPECT_THROW(parseFintamath("cos(sin(2,3))"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(,)"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(,2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(2,)"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin()"), InvalidInputException); + EXPECT_THROW(parseFintamath("log(1)"), InvalidInputException); + EXPECT_THROW(parseFintamath("log()"), InvalidInputException); + + EXPECT_THROW(parseFintamath("(1 = 1) / 2"), InvalidInputException); + EXPECT_THROW(parseFintamath("2 + (1 = 2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(1 = 1)"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(sin(1 = 1))"), InvalidInputException); + EXPECT_THROW(parseFintamath("sin(sin(sin(1 = 1)))"), InvalidInputException); + EXPECT_THROW(parseFintamath("True/True"), InvalidInputException); + EXPECT_THROW(parseFintamath("((1 == 1)) + ((1 == 2))"), InvalidInputException); + EXPECT_THROW(parseFintamath("((1 == 1)) - ((1 == 1))"), InvalidInputException); + EXPECT_THROW(parseFintamath("((1 == 1)) / ((1 == 1))"), InvalidInputException); + EXPECT_THROW(parseFintamath("(5+5)=(2=5)"), InvalidInputException); + EXPECT_THROW(parseFintamath("1+(sin(x)<2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("1/(sin(x)<2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("1+False"), InvalidInputException); + EXPECT_THROW(parseFintamath("False+1"), InvalidInputException); + EXPECT_THROW(parseFintamath("1=False"), InvalidInputException); + EXPECT_THROW(parseFintamath("False=1"), InvalidInputException); + EXPECT_THROW(parseFintamath("1&2"), InvalidInputException); + EXPECT_THROW(parseFintamath("x+1&x+2"), InvalidInputException); + EXPECT_THROW(parseFintamath("x+1&x"), InvalidInputException); + EXPECT_THROW(parseFintamath("x&x+2"), InvalidInputException); + EXPECT_THROW(parseFintamath("(x&y)=(y&z)"), InvalidInputException); + EXPECT_THROW(parseFintamath("derivative(x=y, x)"), InvalidInputException); + EXPECT_THROW(parseFintamath("derivative(x&y,x)"), InvalidInputException); + EXPECT_THROW(parseFintamath("derivative(True,a)"), InvalidInputException); + EXPECT_THROW(parseFintamath("(a+1)_(a>2)"), InvalidInputException); + EXPECT_THROW(parseFintamath("(x+1)_1"), InvalidInputException); + EXPECT_THROW(parseFintamath("(x*2)_1"), InvalidInputException); + EXPECT_THROW(parseFintamath("(x*2)_((x+2)_x)"), InvalidInputException); + EXPECT_THROW(parseFintamath("x^x_1"), InvalidInputException); + EXPECT_THROW(parseFintamath("E&a"), InvalidInputException); + EXPECT_THROW(parseFintamath("~Inf"), InvalidInputException); + EXPECT_THROW(parseFintamath("~Undefined"), InvalidInputException); + EXPECT_THROW(parseFintamath("a | Undefined"), InvalidInputException); + + EXPECT_THROW(parseFintamath("min()"), InvalidInputException); + EXPECT_THROW(parseFintamath("min(True, False)"), InvalidInputException); + EXPECT_THROW(parseFintamath("max()"), InvalidInputException); + EXPECT_THROW(parseFintamath("max(True, False)"), InvalidInputException); } diff --git a/tests/src/expressions/ExpressionTests.cpp b/tests/src/expressions/ExpressionTests.cpp index 8ae891a85..a22c95030 100644 --- a/tests/src/expressions/ExpressionTests.cpp +++ b/tests/src/expressions/ExpressionTests.cpp @@ -2,8 +2,6 @@ #include "fintamath/expressions/Expression.hpp" -#include "fintamath/exceptions/UndefinedException.hpp" - #include using namespace fintamath; @@ -30,2493 +28,16 @@ TEST(ExpressionTests, copyTest) { } TEST(ExpressionTests, stringConstructorTest) { - // TODO! split these tests - EXPECT_EQ(Expression("2").toString(), "2"); EXPECT_EQ(Expression("2 + 2").toString(), "4"); EXPECT_EQ(Expression(" 2 + 2 ").toString(), "4"); EXPECT_EQ(Expression("-2 + 3").toString(), "1"); - EXPECT_EQ(Expression("2 * 2").toString(), "4"); - EXPECT_EQ(Expression("-2 * 2").toString(), "-4"); - EXPECT_EQ(Expression("2 * -2").toString(), "-4"); - EXPECT_EQ(Expression("2 * 3!").toString(), "12"); - EXPECT_EQ(Expression("1 / 3").toString(), "1/3"); - EXPECT_EQ(Expression("0 / 3").toString(), "0"); - EXPECT_EQ(Expression("2 ^ 2").toString(), "4"); - EXPECT_EQ(Expression("-2 ^ 2").toString(), "-4"); - EXPECT_EQ(Expression("2 ^ -2").toString(), "1/4"); - EXPECT_EQ(Expression("2 ^ 3!").toString(), "40320"); - EXPECT_EQ(Expression("0^1").toString(), "0"); - EXPECT_EQ(Expression("2^0").toString(), "1"); - EXPECT_EQ(Expression("(-7)^10").toString(), "282475249"); - EXPECT_EQ(Expression("2^0").toString(), "1"); - EXPECT_EQ(Expression("0.001-0.002").toString(), "-1/1000"); - EXPECT_EQ(Expression("(0.004)/(0.002+0.002)").toString(), "1"); - EXPECT_EQ(Expression("2 + 2 * 2").toString(), "6"); - EXPECT_EQ(Expression("2^2^2^2").toString(), "256"); - EXPECT_EQ(Expression("(2 + 2) * 2").toString(), "8"); - EXPECT_EQ(Expression("(2-2)").toString(), "0"); - EXPECT_EQ(Expression("(2 + 2) / (2 ^ 2 - 2) * 2").toString(), "4"); - EXPECT_EQ(Expression("((((2))))").toString(), "2"); - EXPECT_EQ(Expression("(((((2 + 2) + 2) + 2) + 2) + 2)").toString(), "12"); - EXPECT_EQ(Expression("(((2 ^ 2)^2))").toString(), "16"); - EXPECT_EQ(Expression("-5").toString(), "-5"); - EXPECT_EQ(Expression("--5").toString(), "5"); - EXPECT_EQ(Expression("---5").toString(), "-5"); - EXPECT_EQ(Expression("+5").toString(), "5"); - EXPECT_EQ(Expression("5*-3").toString(), "-15"); - EXPECT_EQ(Expression("----5+++5").toString(), "10"); - EXPECT_EQ(Expression("5----4").toString(), "9"); - EXPECT_EQ(Expression("5+-+-4").toString(), "9"); - EXPECT_EQ(Expression("5*+++---4").toString(), "-20"); - EXPECT_EQ(Expression("1^-1").toString(), "1"); - EXPECT_EQ(Expression("1.").toString(), "1"); - EXPECT_EQ(Expression(".1").toString(), "1/10"); - EXPECT_EQ(Expression("2+.1+.1+1.+1.").toString(), "21/5"); - EXPECT_EQ(Expression("1/10^-20").toString(), "100000000000000000000"); - EXPECT_EQ(Expression("1/10^--20").toString(), "1/100000000000000000000"); - EXPECT_EQ(Expression("1/10^---20").toString(), "100000000000000000000"); - EXPECT_EQ(Expression("36/3(8-6)").toString(), "24"); - EXPECT_EQ(Expression("36/(8-6)3").toString(), "54"); - EXPECT_EQ(Expression("((((((5)/(8)))/(1)))/(((((((9)/(4)))/(0)))/(5))))").toString(), "0"); - - EXPECT_EQ(Expression("2 mod 2").toString(), "0"); - EXPECT_EQ(Expression("5 mod -3").toString(), "-1"); - EXPECT_EQ(Expression("-10 mod 4").toString(), "2"); - EXPECT_EQ(Expression("-51 mod -11").toString(), "-7"); - EXPECT_EQ(Expression("2 mod 3 * 4 / 2").toString(), "2"); - EXPECT_EQ(Expression("2 + 3 * 4 mod 5").toString(), "4"); - EXPECT_EQ(Expression("2^3 mod 3^2").toString(), "8"); - EXPECT_EQ(Expression("2 + 3 * 4 mod 5 / 6").toString(), "14 mod (5/6)"); - - EXPECT_EQ(Expression("2%").toString(), "1/50"); - EXPECT_EQ(Expression("2.35%").toString(), "47/2000"); - EXPECT_EQ(Expression("1100*4.76%").toString(), "1309/25"); - EXPECT_EQ(Expression("2.35%%%%").toString(), "47/2000000000"); - EXPECT_EQ(Expression("1100*4.76%1100*4.76%").toString(), "1713481/625"); - - EXPECT_EQ(Expression("9!").toString(), "362880"); - EXPECT_EQ(Expression("-1!").toString(), "-1"); - EXPECT_EQ(Expression("-100!").toString(), - "-933262154439441526816992388562667004907159682643816214685929638952175999932299156089414639761565182862536" - "97920827223758251185210916864000000000000000000000000"); - EXPECT_EQ(Expression("(5!)!").toString(), - "6689502913449127057588118054090372586752746333138029810295671352301633557244962989366874165271984981308157" - "637893214090552534408589408121859898481114389650005964960521256960000000000000000000000000000"); - EXPECT_EQ(Expression("(2)!").toString(), "2"); - - EXPECT_EQ(Expression("5!").toString(), "120"); - EXPECT_EQ(Expression("5!!").toString(), "15"); - EXPECT_EQ(Expression("5!!!").toString(), "10"); - EXPECT_EQ(Expression("5!!!!").toString(), "5"); - EXPECT_EQ(Expression("5!!!!!").toString(), "5"); - EXPECT_EQ(Expression("5!!!!!!").toString(), "5"); - EXPECT_EQ(Expression("6!").toString(), "720"); - EXPECT_EQ(Expression("6!!").toString(), "48"); - EXPECT_EQ(Expression("6!!!").toString(), "18"); - EXPECT_EQ(Expression("6!!!!").toString(), "12"); - EXPECT_EQ(Expression("6!!!!!").toString(), "6"); - EXPECT_EQ(Expression("6!!!!!!").toString(), "6"); - EXPECT_EQ(Expression("15!!!!!!").toString(), "405"); - EXPECT_EQ(Expression("15!!!!!!!").toString(), "120"); - EXPECT_EQ(Expression("30!!!!!!").toString(), "933120"); - EXPECT_EQ(Expression("30!!!!!!!").toString(), "198720"); - - EXPECT_EQ(Expression("(2/3)!").toString(), "(2/3)!"); - EXPECT_EQ(Expression("E!").toString(), "E!"); - EXPECT_EQ(Expression("(2/3)!!").toString(), "(2/3)!!"); - EXPECT_EQ(Expression("(-1)!!").toString(), "(-1)!!"); - EXPECT_EQ(Expression("sqrt144").toString(), "12"); - EXPECT_EQ(Expression("sqrt0").toString(), "0"); - EXPECT_EQ(Expression("sqrt(25)").toString(), "5"); - EXPECT_EQ(Expression("sqrt(144/25)").toString(), "12/5"); - EXPECT_EQ(Expression("sqrt(50)").toString(), "5 sqrt(2)"); - EXPECT_EQ(Expression("sqrt(26)").toString(), "sqrt(26)"); - EXPECT_EQ(Expression("sqrt(145/26)").toString(), "sqrt(3770)/26"); - EXPECT_EQ(Expression("sqrt(169/3)").toString(), "(13 sqrt(3))/3"); - EXPECT_EQ(Expression("sqrt(168/25)").toString(), "(2 sqrt(42))/5"); - EXPECT_EQ(Expression("root(4, 2)").toString(), "2"); - EXPECT_EQ(Expression("root(8, 3)").toString(), "2"); - EXPECT_EQ(Expression("root(16, 4)").toString(), "2"); - EXPECT_EQ(Expression("root(27, 3)").toString(), "3"); - EXPECT_EQ(Expression("root(0, 3)").toString(), "0"); - - EXPECT_EQ(Expression("4^(1/2)").toString(), "2"); - EXPECT_EQ(Expression("8^(1/3)").toString(), "2"); - EXPECT_EQ(Expression("8^(4/3)").toString(), "16"); - EXPECT_EQ(Expression("7 2^(2/3)").toString(), "7 root(4, 3)"); - EXPECT_EQ(Expression("2^(2/3) 3^(2/3)").toString(), "root(36, 3)"); - EXPECT_EQ(Expression("2^(2/3) 7^(2/3) 3^(3/4)").toString(), "root(196, 3) root(27, 4)"); - EXPECT_EQ(Expression("2^(2/3) 1/7^(2/3) 3^(3/4)").toString(), "(root(28, 3) root(27, 4))/7"); - - EXPECT_EQ(Expression("1/sqrt(3)").toString(), "sqrt(3)/3"); - EXPECT_EQ(Expression("1/root(3, 3)").toString(), "root(9, 3)/3"); - EXPECT_EQ(Expression("1/root(3, 4)").toString(), "root(27, 4)/3"); - EXPECT_EQ(Expression("sqrt(2) / (sqrt(2/3) sqrt(8))").toString(), "sqrt(6)/4"); - EXPECT_EQ(Expression("(sqrt(8) sqrt(2/3)) / sqrt(2)").toString(), "(2 sqrt(6))/3"); - - EXPECT_EQ(Expression("E").toString(), "E"); - EXPECT_EQ(Expression("Pi").toString(), "Pi"); - EXPECT_EQ(Expression("E^101-E^101").toString(), "0"); - EXPECT_EQ(Expression("E E Pi E").toString(), "E^3 Pi"); - EXPECT_EQ(Expression("E Pi E^2 Pi").toString(), "E^3 Pi^2"); - EXPECT_EQ(Expression("Pi^5 E^2 Pi").toString(), "E^2 Pi^6"); - EXPECT_EQ(Expression("E Pi E^2 Pi^3 E^2 Pi^3 E^5 Pi^5").toString(), "E^10 Pi^12"); - EXPECT_EQ(Expression("ln(E^E) / ln(E^E) - 1").toString(), "0"); - EXPECT_EQ(Expression("8E").toString(), "8 E"); - EXPECT_EQ(Expression("8Pi").toString(), "8 Pi"); - EXPECT_EQ(Expression("E8").toString(), "8 E"); - EXPECT_EQ(Expression("Pi8").toString(), "8 Pi"); - EXPECT_EQ(Expression("exp100").toString(), "E^100"); - EXPECT_EQ(Expression("E^101").toString(), "E^101"); - EXPECT_EQ(Expression("E^(-101)").toString(), "1/(E^101)"); - EXPECT_EQ(Expression("sin10").toString(), "sin(10)"); - EXPECT_EQ(Expression("cos10").toString(), "cos(10)"); - EXPECT_EQ(Expression("tan10").toString(), "tan(10)"); - EXPECT_EQ(Expression("cot10").toString(), "cot(10)"); - EXPECT_EQ(Expression("sec10").toString(), "sec(10)"); - EXPECT_EQ(Expression("csc10").toString(), "csc(10)"); - EXPECT_EQ(Expression("asin0.9").toString(), "asin(9/10)"); - EXPECT_EQ(Expression("acos0.9").toString(), "acos(9/10)"); - EXPECT_EQ(Expression("atan10").toString(), "atan(10)"); - EXPECT_EQ(Expression("acot10").toString(), "acot(10)"); - EXPECT_EQ(Expression("asec10").toString(), "asec(10)"); - EXPECT_EQ(Expression("acsc10").toString(), "acsc(10)"); - EXPECT_EQ(Expression("sinh10").toString(), "sinh(10)"); - EXPECT_EQ(Expression("cosh10").toString(), "cosh(10)"); - EXPECT_EQ(Expression("tanh10").toString(), "tanh(10)"); - EXPECT_EQ(Expression("coth10").toString(), "coth(10)"); - EXPECT_EQ(Expression("sech10").toString(), "sech(10)"); - EXPECT_EQ(Expression("csch10").toString(), "csch(10)"); - EXPECT_EQ(Expression("asinh0.9").toString(), "asinh(9/10)"); - EXPECT_EQ(Expression("acosh1.9").toString(), "acosh(19/10)"); - EXPECT_EQ(Expression("atanh0.9").toString(), "atanh(9/10)"); - EXPECT_EQ(Expression("acoth1.9").toString(), "acoth(19/10)"); - EXPECT_EQ(Expression("asech0.9").toString(), "asech(9/10)"); - EXPECT_EQ(Expression("acsch1.9").toString(), "acsch(19/10)"); - EXPECT_EQ(Expression("((2))*sqrt2").toString(), "2 sqrt(2)"); - EXPECT_EQ(Expression("sqrt2*((2))").toString(), "2 sqrt(2)"); - EXPECT_EQ(Expression("sin(1)^2").toString(), "sin(1)^2"); - EXPECT_EQ(Expression("sin(-1)^2").toString(), "sin(1)^2"); - EXPECT_EQ(Expression("sin1^2").toString(), "sin(1)^2"); - EXPECT_EQ(Expression("sin(10^30)").toString(), "sin(1000000000000000000000000000000)"); - EXPECT_EQ(Expression("sin(1)^2 + cos(1)^2").toString(), "1"); - EXPECT_EQ(Expression("3sin(1)^2 + 3cos(1)^2").toString(), "3"); - EXPECT_EQ(Expression("2!*E").toString(), "2 E"); - EXPECT_EQ(Expression("E*2!").toString(), "2 E"); - EXPECT_EQ(Expression("sqrt((1-cos(2*(Pi/3)))/2)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("2*sqrt((1-cos(2*(Pi/3)))/2)*cos(Pi/3)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("-sin(2)").toString(), "-sin(2)"); - EXPECT_EQ(Expression("2^(3/2)").toString(), "2 sqrt(2)"); - EXPECT_EQ(Expression("sqrt((-1)^2)").toString(), "1"); - EXPECT_EQ(Expression("sqrt(sqrt5)").toString(), "root(5, 4)"); - EXPECT_EQ(Expression("sqrt(sqrt(-5))").toString(), "sqrt(I sqrt(5))"); - EXPECT_EQ(Expression("sqrt4!").toString(), "2"); - EXPECT_EQ(Expression("(sqrt4)!").toString(), "2"); - EXPECT_EQ(Expression("sqrt4*2!").toString(), "4"); - EXPECT_EQ(Expression("abs(-5)").toString(), "5"); - EXPECT_EQ(Expression("abs((-5))").toString(), "5"); - EXPECT_EQ(Expression("sign(10)").toString(), "1"); - EXPECT_EQ(Expression("sign(0)").toString(), "0"); - EXPECT_EQ(Expression("sign(-5)").toString(), "-1"); - EXPECT_EQ(Expression("frac(2,4)").toString(), "1/2"); - EXPECT_EQ(Expression("frac(x,y)").toString(), "x/y"); - EXPECT_EQ(Expression("frac(2,2,4)").toString(), "5/2"); - EXPECT_EQ(Expression("frac(x,y,z)").toString(), "x + y/z"); - EXPECT_EQ(Expression("sqr(3)").toString(), "9"); - EXPECT_EQ(Expression("pow(2,4)").toString(), "16"); - EXPECT_EQ(Expression("pow(x,y)").toString(), "x^y"); - EXPECT_EQ(Expression("1deg").toString(), "Pi/180"); - EXPECT_EQ(Expression("60deg").toString(), "Pi/3"); - EXPECT_EQ(Expression("adeg").toString(), "(Pi a)/180"); - EXPECT_EQ(Expression("floor(2/3)").toString(), "0"); - EXPECT_EQ(Expression("floor(-2/3)").toString(), "-1"); - EXPECT_EQ(Expression("ceil(2/3)").toString(), "1"); - EXPECT_EQ(Expression("ceil(-2/3)").toString(), "0"); - EXPECT_EQ(Expression("cos(5) - cos(-5)").toString(), "0"); - - EXPECT_EQ(Expression("a*0").toString(), "0"); - EXPECT_EQ(Expression("0*a").toString(), "0"); - EXPECT_EQ(Expression("1*a").toString(), "a"); - EXPECT_EQ(Expression("a*1").toString(), "a"); - - EXPECT_EQ(Expression("0^a").toString(), "0"); - EXPECT_EQ(Expression("1^a").toString(), "1"); - EXPECT_EQ(Expression("(a b)^0").toString(), "1"); - EXPECT_EQ(Expression("(a + b)^-1").toString(), "1/(a + b)"); - EXPECT_EQ(Expression("(a + b)^-2").toString(), "1/(a^2 + 2 a b + b^2)"); - EXPECT_EQ(Expression("(a b)^-1").toString(), "1/(a b)"); - EXPECT_EQ(Expression("(a b)^-2").toString(), "1/(a^2 b^2)"); - - EXPECT_EQ(Expression("2%a").toString(), "a/50"); - EXPECT_EQ(Expression("2!!!!a!!!").toString(), "2 a!!!"); - EXPECT_EQ(Expression("sin a").toString(), "sin(a)"); - EXPECT_EQ(Expression("s i n a").toString(), "a i n s"); - EXPECT_EQ(Expression("a(2)").toString(), "2 a"); - EXPECT_EQ(Expression("(2)a").toString(), "2 a"); - EXPECT_EQ(Expression("Ea").toString(), "E a"); - EXPECT_EQ(Expression("aE").toString(), "E a"); - EXPECT_EQ(Expression("aEE").toString(), "E^2 a"); - EXPECT_EQ(Expression("EEa").toString(), "E^2 a"); - EXPECT_EQ(Expression("x123").toString(), "123 x"); - EXPECT_EQ(Expression("x^y!").toString(), "(x^y)!"); - EXPECT_EQ(Expression("lnE").toString(), "1"); - EXPECT_EQ(Expression("lncossinE").toString(), "ln(cos(sin(E)))"); - EXPECT_EQ(Expression("ln cos sin a").toString(), "ln(cos(sin(a)))"); - - EXPECT_EQ(Expression("2.a").toString(), "2 a"); - EXPECT_EQ(Expression("a.2").toString(), "a/5"); - EXPECT_EQ(Expression("a+a").toString(), "2 a"); - EXPECT_EQ(Expression("a-a").toString(), "0"); - EXPECT_EQ(Expression("-a").toString(), "-a"); - EXPECT_EQ(Expression("+a").toString(), "a"); - EXPECT_EQ(Expression("--a").toString(), "a"); - EXPECT_EQ(Expression("---a").toString(), "-a"); - EXPECT_EQ(Expression("b--a").toString(), "a + b"); - EXPECT_EQ(Expression("b---a").toString(), "-a + b"); - EXPECT_EQ(Expression("-(-(-(-(-(-(-(-a)))))))").toString(), "a"); - EXPECT_EQ(Expression("-(-(-(-(-(-(-(-(-a))))))))").toString(), "-a"); - EXPECT_EQ(Expression("--------a").toString(), "a"); - EXPECT_EQ(Expression("---------a").toString(), "-a"); - EXPECT_EQ(Expression("abcdefg").toString(), "a b c d e f g"); - EXPECT_EQ(Expression("a+b+c+d+e+f+g").toString(), "a + b + c + d + e + f + g"); - EXPECT_EQ(Expression("(a+b)-b").toString(), "a"); - EXPECT_EQ(Expression("a-b-c").toString(), "a - b - c"); - EXPECT_EQ(Expression("a-(b-c)").toString(), "a - b + c"); - EXPECT_EQ(Expression("(a-b)-c").toString(), "a - b - c"); - EXPECT_EQ(Expression("(a+b)*(a+b)+a*b*c-c*a*b+b*a").toString(), "a^2 + 3 a b + b^2"); - EXPECT_EQ(Expression("x/y/z").toString(), "x/(y z)"); - EXPECT_EQ(Expression("x/(y/z)").toString(), "(x z)/y"); - EXPECT_EQ(Expression("(x/y)/z").toString(), "x/(y z)"); - EXPECT_EQ(Expression("x^y^z").toString(), "(x^y)^z"); - EXPECT_EQ(Expression("x^(y^z)").toString(), "x^(y^z)"); - EXPECT_EQ(Expression("(x^y)^z").toString(), "(x^y)^z"); - EXPECT_EQ(Expression("(a+b)^2").toString(), "a^2 + 2 a b + b^2"); - EXPECT_EQ(Expression("(a+b)^3").toString(), "a^3 + 3 a^2 b + 3 a b^2 + b^3"); - EXPECT_EQ(Expression("1*(a+b)^3").toString(), "a^3 + 3 a^2 b + 3 a b^2 + b^3"); - EXPECT_EQ(Expression("(a+b)^4").toString(), "a^4 + 4 a^3 b + 6 a^2 b^2 + 4 a b^3 + b^4"); - EXPECT_EQ(Expression("5^x 9").toString(), "9*5^x"); - EXPECT_EQ(Expression("9 5^x").toString(), "9*5^x"); - EXPECT_EQ(Expression("9 5^x 9").toString(), "81*5^x"); - EXPECT_EQ(Expression("5^x 99").toString(), "99*5^x"); - EXPECT_EQ(Expression("99 5^x").toString(), "99*5^x"); - EXPECT_EQ(Expression("99 5^x 99").toString(), "9801*5^x"); - EXPECT_EQ(Expression("5^x a").toString(), "a 5^x"); - EXPECT_EQ(Expression("a 5^x").toString(), "a 5^x"); - EXPECT_EQ(Expression("a 5^x a").toString(), "a^2*5^x"); - EXPECT_EQ(Expression("2 5^x 6^y 7^z x^2 y^3").toString(), "2 x^2 y^3*5^x 6^y 7^z"); - EXPECT_EQ(Expression("1*(a+b)*1").toString(), "a + b"); - EXPECT_EQ(Expression("-1*(a+b)*1").toString(), "-a - b"); - EXPECT_EQ(Expression("1*(a+b)*-1").toString(), "-a - b"); - EXPECT_EQ(Expression("-1*(a+b)*-1").toString(), "a + b"); - EXPECT_EQ(Expression("1+(a+b)+1").toString(), "a + b + 2"); - EXPECT_EQ(Expression("-1+(a+b)+1").toString(), "a + b"); - EXPECT_EQ(Expression("1+(a+b)-1").toString(), "a + b"); - EXPECT_EQ(Expression("-1+(a+b)-1").toString(), "a + b - 2"); - EXPECT_EQ(Expression("2*(a+b)*2").toString(), "4 a + 4 b"); - EXPECT_EQ(Expression("-2*(a+b)*2").toString(), "-4 a - 4 b"); - EXPECT_EQ(Expression("2*(a+b)*-2").toString(), "-4 a - 4 b"); - EXPECT_EQ(Expression("-2*(a+b)*-2").toString(), "4 a + 4 b"); - EXPECT_EQ(Expression("2+(a+b)+2").toString(), "a + b + 4"); - EXPECT_EQ(Expression("-2+(a+b)+2").toString(), "a + b"); - EXPECT_EQ(Expression("2+(a+b)-2").toString(), "a + b"); - EXPECT_EQ(Expression("-2+(a+b)-2").toString(), "a + b - 4"); - EXPECT_EQ(Expression("(a+b)+(a+b)-(a+b)").toString(), "a + b"); - EXPECT_EQ(Expression("(a+b)+(a+b)+(-(a+b))").toString(), "a + b"); - EXPECT_EQ(Expression("(a+b)+(a+b)+(-(-(a+b)))").toString(), "3 a + 3 b"); - EXPECT_EQ(Expression("-a^2 + b").toString(), "-a^2 + b"); - EXPECT_EQ(Expression("-a^2 c + b").toString(), "-a^2 c + b"); - EXPECT_EQ(Expression("-a^2 d - a^2 c + b").toString(), "-a^2 c - a^2 d + b"); - EXPECT_EQ(Expression("abc").toString(), "a b c"); - EXPECT_EQ(Expression("d^abc").toString(), "b c d^a"); - EXPECT_EQ(Expression("abc^d").toString(), "a b c^d"); - EXPECT_EQ(Expression("(a+b(a+b(a+b(a+b))))").toString(), "a b^3 + a b^2 + a b + a + b^4"); - EXPECT_EQ(Expression("(ab+(ab+(ab+(ab))))").toString(), "4 a b"); - EXPECT_EQ(Expression("((a+b+(a+c)+(1+v))+((a+c(abc(aaa))+v)c+d))((c)((d+d+d)b)a)").toString(), - "3 a^5 b^2 c^4 d + 3 a^2 b c^2 d + 6 a^2 b c d + 3 a b^2 c d + 3 a b c^2 d v + 3 a b c^2 d + 3 a b c d^2 + " - "3 a b c d v + 3 a b c d"); - EXPECT_EQ(Expression("2/(a + 2) + b/(a + 2)").toString(), "(b + 2)/(a + 2)"); - EXPECT_EQ(Expression("c * 2^(a + 2) + b^(a + 2)").toString(), "b^(a + 2) + 2^(a + 2) c"); - EXPECT_EQ(Expression("2^(a + 2) * b^(a + 2)").toString(), "b^(a + 2) 2^(a + 2)"); - EXPECT_EQ(Expression("2 a b c + a b + a b c").toString(), "3 a b c + a b"); - - EXPECT_EQ(Expression("-9 / (3x+3)").toString(), "-3/(x + 1)"); - EXPECT_EQ(Expression("(4x^2 - 5x - 21) / (x - 3)").toString(), "4 x + 7"); - EXPECT_EQ(Expression("(3x^3 - 5x^2 + 10x - 3) / (3x + 1)").toString(), "x^2 - 2 x + 4 - 7/(3 x + 1)"); - EXPECT_EQ(Expression("(2x^3 - 9x^2 + 15) / (2x - 5)").toString(), "x^2 - 2 x - 5 - 10/(2 x - 5)"); - EXPECT_EQ(Expression("(4x^4 + 1 + 3x^3 + 2x) / (x^2 + x + 2)").toString(), - "4 x^2 - x - 7 + (11 x + 15)/(x^2 + x + 2)"); - EXPECT_EQ(Expression("(2x^4 - 3x^3 + 4x^2 - 5x + 6) / (x^2 + 2x - 3)").toString(), - "2 x^2 - 7 x + 24 - (74 x - 78)/(x^2 + 2 x - 3)"); - EXPECT_EQ(Expression("(4x^5 + 2x^4 - 6x^3 + 3x^2 + x - 2) / (2x^3 + x^2 - 3x + 2)").toString(), - "2 x^2 - (x^2 - x + 2)/(2 x^3 + x^2 - 3 x + 2)"); - EXPECT_EQ(Expression("(3x^6 + 5x^5 - 2x^4 + 4x^3 + x^2 + 3x - 5) / (x^4 + 3x^2 - 2)").toString(), - "3 x^2 + 5 x - 11 - (11 x^3 - 40 x^2 - 13 x + 27)/(x^4 + 3 x^2 - 2)"); - EXPECT_EQ(Expression("(6x^8 - 7x^6 + 9x^4 - 4x^2 + 8) / (2x^3 - x^2 + 3x - 1)").toString(), - "3 x^5 + (3 x^4)/2 - (29 x^3)/4 - (35 x^2)/8 + (223 x)/16 + 317/32 - (1289 x^2 + 505 x - 573)/(64 x^3 - 32 x^2 + 96 x - 32)"); - EXPECT_EQ(Expression("(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)/(25 a^2 + 40 a b + 15 b^2)").toString(), - "(2 a)/25 + (9 b)/125 - (2 a b^2 + 2 b^3)/(625 a^2 + 1000 a b + 375 b^2)"); - EXPECT_EQ(Expression("(25 a^2 + 40 a b + 15 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)").toString(), - "(25 a^2 + 40 a b + 15 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)"); - EXPECT_EQ(Expression("(x^2 + 2x + 1)/(x^3 + 3x^2 + 3x + 1)").toString(), "1/(x + 1)"); - EXPECT_EQ(Expression("5/(a+b) + 5/(2a+b) + 5/(a+b)").toString(), - "(25 a^2 + 40 a b + 15 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)"); - EXPECT_EQ(Expression("(x+y)/(a+b) + 5/(2a+b) + (x+2y)/(a+b)").toString(), - "(4 a^2 x + 6 a^2 y + 5 a^2 + 6 a b x + 9 a b y + 10 a b + 2 b^2 x + 3 b^2 y + 5 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)"); // TODO: "(4 a x + 6 a y + 5 a + 2 b x + 3 b y + 5 b)/(2 a^2 + 3 a b + b^2)" - EXPECT_EQ(Expression("(a/b)(c/d)").toString(), "(a c)/(b d)"); - EXPECT_EQ(Expression("(ab/2)(ad/3)").toString(), "(a^2 b d)/6"); - EXPECT_EQ(Expression("(-a)(-b)").toString(), "a b"); - EXPECT_EQ(Expression("(a)(-b)").toString(), "-a b"); - EXPECT_EQ(Expression("(-a)(b)").toString(), "-a b"); - EXPECT_EQ(Expression("(5/3 b)/a").toString(), "(5 b)/(3 a)"); - EXPECT_EQ(Expression("(5/3 + b)/(2/5 + a)").toString(), "(15 b + 25)/(15 a + 6)"); - EXPECT_EQ(Expression("(a b)/(a b)").toString(), "1"); - EXPECT_EQ(Expression("(a b)/1").toString(), "a b"); - EXPECT_EQ(Expression("(a b)/-1").toString(), "-a b"); - EXPECT_EQ(Expression("(a b)/-2").toString(), "-(a b)/2"); - EXPECT_EQ(Expression("(a b)/(-a - b)").toString(), "-b + (b^2)/(a + b)"); - EXPECT_EQ(Expression("(x^5)/(x - y)").toString(), "x^4 + x^3 y + x^2 y^2 + x y^3 + y^4 + (y^5)/(x - y)"); - EXPECT_EQ(Expression("(3 x + 5/9)/(2y - 9/x + 3/2 x + 1/2 + 2 y / x)").toString(), - "2 - (72 x^2 y + 8 x^2 + 72 x y - 324 x)/(27 x^3 + 36 x^2 y + 9 x^2 + 36 x y - 162 x)"); // TODO: "2 - (72 x y + 8 x + 72 y - 324)/(27 x^2 + 36 x y + 9 x + 36 y - 162)" - EXPECT_EQ(Expression("(a/x + b/(y+3/r)/4)/(3+t/5)").toString(), - "(20 a r y + 60 a + 5 b r x)/(4 r t x y + 60 r x y + 12 t x + 180 x)"); - EXPECT_EQ(Expression("(x/a - (b+5)/(y-8/(12 y))/4)/(8-a/5)").toString(), - "(15 a b y + 75 a y - 60 x y^2 + 40 x)/(12 a^2 y^2 - 8 a^2 - 480 a y^2 + 320 a)"); - EXPECT_EQ(Expression("(a + b + c^2) / ((a + b + c^3) / (5/2 * (a + b) / (3/b + c/2)))").toString(), - "5 c + (5 a^2 b + 10 a b^2 - 30 a c + 5 b^3 - 5 b c^5 - 30 b c - 30 c^4)/(a b c + 6 a + b^2 c + b c^4 + 6 " - "b + 6 c^3)"); - EXPECT_EQ(Expression("((2xy)/(x^2 - y^2) + (x - y)/(2x + 2y)) * (2x)/(x + y) + y/(y - x)").toString(), "1"); - EXPECT_EQ(Expression("y/(x - y) - (x ^3 - xy ^2)/(x ^2 + y ^2) * (x/((x - y) ^2) - y/(x ^2 - y ^2))").toString(), - "-1"); - EXPECT_EQ(Expression("(a+3)/(b+2)").toString(), "(a + 3)/(b + 2)"); - EXPECT_EQ(Expression("b/a*(a+3)/(b+2)").toString(), "1 - (2 a - 3 b)/(a b + 2 a)"); - EXPECT_EQ(Expression("(5+b)/a*(a+3)/(b+2)").toString(), "1 + (3 a + 3 b + 15)/(a b + 2 a)"); - EXPECT_EQ(Expression("(a+b)*(a+b)/(a+b)").toString(), "a + b"); - EXPECT_EQ(Expression("(a+b)*(a+b)*(1/(a+b))").toString(), "a + b"); - EXPECT_EQ(Expression("(x^2+2x+1)/(x+1)").toString(), "x + 1"); - EXPECT_EQ(Expression("(1/2 + sqrt(3)) / (x^(1/4) + 6)").toString(), - "(2 sqrt(3) + 1)/(2 root(x, 4) + 12)"); - EXPECT_EQ(Expression("(x^2 + sqrt(y) - 45) / (sqrt(3) + 3)").toString(), - "(x^2 + sqrt(y) - 45)/(sqrt(3) + 3)"); - EXPECT_EQ(Expression("(x^2 + sqrt(y) - 45x) / (root(3, 4) + 3)").toString(), - "(x^2 - 45 x + sqrt(y))/(root(3, 4) + 3)"); - EXPECT_EQ(Expression("(x^2 + sqrt(y) - 45x) / (root(3, 4) x + 3)").toString(), - "(root(27, 4) x)/3 - sqrt(3) - 15 root(27, 4) + (sqrt(y) + 45 root(27, 4) + 3 sqrt(3))/(root(3, 4) x + 3)"); - EXPECT_EQ(Expression("(sqrt(-4 a c + b^2) - b) / (2 a)").toString(), - "(sqrt(-4 a c + b^2) - b)/(2 a)"); - - EXPECT_EQ(Expression("(x/y)^2").toString(), "(x^2)/(y^2)"); - EXPECT_EQ(Expression("(x/y)^(1/2)").toString(), "sqrt(x/y)"); - EXPECT_EQ(Expression("(x/y)^(1/3)").toString(), "root(x/y, 3)"); - EXPECT_EQ(Expression("(x/y)^(-1/2)").toString(), "1/sqrt(x/y)"); - EXPECT_EQ(Expression("(x/y)^(-1/3)").toString(), "1/root(x/y, 3)"); - EXPECT_EQ(Expression("(x/y)^x").toString(), "(x/y)^x"); - EXPECT_EQ(Expression("(x/y)^(1/x)").toString(), "root(x/y, x)"); - - EXPECT_EQ(Expression("sqrt(x) + x").toString(), "x + sqrt(x)"); - EXPECT_EQ(Expression("sqrt(x) - x").toString(), "-x + sqrt(x)"); - EXPECT_EQ(Expression("sqrt(x) * sqrt(x)").toString(), "x"); - EXPECT_EQ(Expression("x/(sqrt(x) - x)").toString(), "-1 - sqrt(x)/(x - sqrt(x))"); - EXPECT_EQ(Expression("x/(2 sqrt(x) - x)").toString(), "-1 - (2 sqrt(x))/(x - 2 sqrt(x))"); - EXPECT_EQ(Expression("(x-1)/(sqrt(x) - x)").toString(), "-1 - 1/sqrt(x)"); - EXPECT_EQ(Expression("(x-1)/(2 sqrt(x) - x)").toString(), "-1 - (2 sqrt(x) - 1)/(x - 2 sqrt(x))"); - EXPECT_EQ(Expression("(x-1)/(sqrt(x)/2 - x)").toString(), "-1 - (sqrt(x) - 2)/(2 x - sqrt(x))"); - EXPECT_EQ(Expression("(x-1)/(root(x, 3) - x)").toString(), "-1 - (root(x, 3) - 1)/(x - root(x, 3))"); - EXPECT_EQ(Expression("(x-1)/(2 root(x, 3) - x)").toString(), "-1 - (2 root(x, 3) - 1)/(x - 2 root(x, 3))"); - EXPECT_EQ(Expression("(x-1)/(root(x, 3)/2 - x)").toString(), "-1 - (root(x, 3) - 2)/(2 x - root(x, 3))"); - EXPECT_EQ(Expression("(x-1)/(x^(4/3) - x)").toString(), "(x - 1)/(x^(4/3) - x)"); - EXPECT_EQ(Expression("(x-1)/(2 x^(4/3) - x)").toString(), "(x - 1)/(2 x^(4/3) - x)"); - EXPECT_EQ(Expression("x (sqrt(2) + sqrt(3))").toString(), "(sqrt(3) + sqrt(2)) x"); - EXPECT_EQ(Expression("x (sqrt(2) + sqrt(3)) y sqrt(2)").toString(), "(sqrt(6) + 2) x y"); - EXPECT_EQ(Expression("a + sqrt(2) x + sqrt(3) x + Pi^4 x + 1").toString(), "a + (Pi^4 + sqrt(3) + sqrt(2)) x + 1"); - EXPECT_EQ(Expression("a - sqrt(2) x - sqrt(3) x - Pi^4 x + 1").toString(), "a + (-Pi^4 - sqrt(3) - sqrt(2)) x + 1"); - EXPECT_EQ(Expression("x Pi^4 ln(5) + x E^2 sin(1) sinh(2)").toString(), "(E^2 sinh(2) sin(1) + Pi^4 ln(5)) x"); - EXPECT_EQ(Expression("(a+b) (-sqrt2 + sqrt3 - sqrt5)").toString(), "(sqrt(3) - sqrt(5) - sqrt(2)) a + (sqrt(3) - sqrt(5) - sqrt(2)) b"); - EXPECT_EQ(Expression("(sqrt(2) x + sqrt(3) x + Pi^4 x + 1) / (sqrt(2) + sqrt(3) + Pi^4)").toString(), "x + 1/(Pi^4 + sqrt(3) + sqrt(2))"); - EXPECT_EQ(Expression("sqrt(1/(7 + x^2)) + sqrt(x)/(sqrt(x) + 1)").toString(), "sqrt(1/(x^2 + 7)) + 1 - 1/(sqrt(x) + 1)"); - EXPECT_EQ(Expression("root(1/(7 + x^2), 3) + sqrt(x)/(sqrt(x) + 1)").toString(), "root(1/(x^2 + 7), 3) + 1 - 1/(sqrt(x) + 1)"); - EXPECT_EQ(Expression("ln(a) (2x + 2)").toString(), "ln(a) (2 x + 2)"); - EXPECT_EQ(Expression("log(a, 2) (2x + 2)").toString(), "log(a, 2) (2 x + 2)"); - EXPECT_EQ(Expression("x / (t sin(x))").toString(), "(x csc(x))/t"); - EXPECT_EQ(Expression("root(x, x) mod 1").toString(), "root(x, x) mod 1"); - EXPECT_EQ(Expression("root(x, y/x) mod 1").toString(), "(x^(x/y)) mod 1"); - - EXPECT_EQ(Expression("log(2, 2)").toString(), "1"); - EXPECT_EQ(Expression("log(2, 256)").toString(), "8"); - EXPECT_EQ(Expression("log(3, 515377520732011331036461129765621272702107522001)").toString(), "100"); - EXPECT_EQ(Expression("log(515377520732011331036461129765621272702107522001, 3)").toString(), "1/100"); - EXPECT_EQ(Expression("log(2/3, 4/9)").toString(), "2"); - EXPECT_EQ(Expression("log(9/4, 3/2)").toString(), "1/2"); - EXPECT_EQ(Expression("log(4/9, 2/3)").toString(), "1/2"); - EXPECT_EQ(Expression("log(4/11, 2/3)").toString(), "log(4/11, 2/3)"); - EXPECT_EQ(Expression("ln1").toString(), "0"); - EXPECT_EQ(Expression("ln3").toString(), "ln(3)"); - EXPECT_EQ(Expression("ln2").toString(), "ln(2)"); - EXPECT_EQ(Expression("ln100").toString(), "ln(100)"); - EXPECT_EQ(Expression("ln(E)").toString(), "1"); - EXPECT_EQ(Expression("lg99").toString(), "log(10, 99)"); - EXPECT_EQ(Expression("lg100").toString(), "2"); - EXPECT_EQ(Expression("lb100").toString(), "log(2, 100)"); - EXPECT_EQ(Expression("lb4").toString(), "2"); - EXPECT_EQ(Expression("ln(ln(E))").toString(), "0"); - EXPECT_EQ(Expression("ln(E)!").toString(), "1"); - EXPECT_EQ(Expression("log(0, 1)").toString(), "0"); - EXPECT_EQ(Expression("log(-1, 1)").toString(), "0"); - EXPECT_EQ(Expression("log(E,E)").toString(), "1"); - EXPECT_EQ(Expression("log(Pi, Pi^10)").toString(), "10"); - EXPECT_EQ(Expression("log(E,E^3)").toString(), "3"); - EXPECT_EQ(Expression("log((Pi),(E)^((Pi)))").toString(), "Pi log(Pi, E)"); - EXPECT_EQ(Expression("log(E^3, E)").toString(), "1/3"); - EXPECT_EQ(Expression("log(E^Pi, E)").toString(), "1/Pi"); - - EXPECT_EQ(Expression("sqrt(x^2)").toString(), "sqrt(x^2)"); - EXPECT_EQ(Expression("sqrt(x)^2").toString(), "x"); - EXPECT_EQ(Expression("(x^10)^(1/10)").toString(), "root(x^10, 10)"); - EXPECT_EQ(Expression("(x^(1/10))^10").toString(), "x"); - EXPECT_EQ(Expression("(x^3)^(1/3)").toString(), "root(x^3, 3)"); - EXPECT_EQ(Expression("(x^(1/3))^3").toString(), "x"); - EXPECT_EQ(Expression("root(x^(-2), -2)").toString(), "1/sqrt(1/(x^2))"); - EXPECT_EQ(Expression("root(0, x)").toString(), "0"); - - EXPECT_EQ(Expression("(a+b+1-1)^1000/(a+b+1-1)^998").toString(), "a^2 + 2 a b + b^2"); - EXPECT_EQ(Expression("(a+b)^1000/(a+b)^998").toString(), "a^2 + 2 a b + b^2"); - EXPECT_EQ(Expression("sin(asin(a+b+1-1))^1000/(a+b+1-1)^998").toString(), "a^2 + 2 a b + b^2"); - EXPECT_EQ(Expression("a(10^100)/10^99").toString(), "10 a"); - - EXPECT_EQ(Expression("floor(E)").toString(), "2"); - EXPECT_EQ(Expression("ceil(E)").toString(), "3"); - EXPECT_EQ(Expression("floor(E^10)").toString(), "22026"); - EXPECT_EQ(Expression("ceil(E^10)").toString(), "22027"); - EXPECT_EQ(Expression("floor(11^10)").toString(), "25937424601"); - EXPECT_EQ(Expression("ceil(11^10)").toString(), "25937424601"); - EXPECT_EQ(Expression("tan(floor(E/3))").toString(), "0"); - EXPECT_EQ(Expression("tan(ceil(-E/3))").toString(), "0"); - EXPECT_EQ(Expression("ln(floor(E/3))").toString(), "-Inf"); - EXPECT_EQ(Expression("root(ceil(-E/3), 3)").toString(), "0"); - EXPECT_EQ(Expression("floor(E + I)").toString(), "2 + I"); - EXPECT_EQ(Expression("floor(E + x)").toString(), "floor(x + E)"); - - EXPECT_EQ(Expression("abs(E)").toString(), "abs(E)"); - EXPECT_EQ(Expression("sign(E)").toString(), "1"); - EXPECT_EQ(Expression("abs(-E)").toString(), "abs(E)"); - EXPECT_EQ(Expression("sign(-E)").toString(), "-1"); - EXPECT_EQ(Expression("abs(E + I)").toString(), "abs(E + I)"); - EXPECT_EQ(Expression("sign(E + I)").toString(), "sign(E + I)"); - - EXPECT_EQ(Expression("floor(-x)").toString(), "-ceil(x)"); - EXPECT_EQ(Expression("ceil(-x)").toString(), "-floor(x)"); - EXPECT_EQ(Expression("abs(-x)").toString(), "abs(x)"); - EXPECT_EQ(Expression("sign(-x)").toString(), "-sign(x)"); - - EXPECT_EQ(Expression("floor(E^(E^(E^2)))").toString(), "floor(E^(E^(E^2)))"); - EXPECT_EQ(Expression("ceil(E^(E^(E^2)))").toString(), "ceil(E^(E^(E^2)))"); - EXPECT_EQ(Expression("sign(E^(E^(E^2)))").toString(), "1"); - - EXPECT_EQ(Expression("-sin(x)").toString(), "-sin(x)"); - EXPECT_EQ(Expression("-sin(x) + sin(2)").toString(), "-sin(x) + sin(2)"); - EXPECT_EQ(Expression("-3sin(E)").toString(), "-3 sin(E)"); - EXPECT_EQ(Expression("1-(sin(x)+1)").toString(), "-sin(x)"); - EXPECT_EQ(Expression("1/(sin(x)+1)").toString(), "1/(sin(x) + 1)"); - EXPECT_EQ(Expression("(x+1)^3").toString(), "x^3 + 3 x^2 + 3 x + 1"); - EXPECT_EQ(Expression("(x+1)^(-3)").toString(), "1/(x^3 + 3 x^2 + 3 x + 1)"); - EXPECT_EQ(Expression("(sin(x)+1)^3").toString(), "sin(x)^3 + 3 sin(x)^2 + 3 sin(x) + 1"); - EXPECT_EQ(Expression("(sin(x)+1)^(-3)").toString(), "1/(sin(x)^3 + 3 sin(x)^2 + 3 sin(x) + 1)"); - EXPECT_EQ(Expression("(sin(x)+1)^(-4)").toString(), "1/(sin(x)^4 + 4 sin(x)^3 + 6 sin(x)^2 + 4 sin(x) + 1)"); - EXPECT_EQ(Expression("(x)sin(a)").toString(), "sin(a) x"); - EXPECT_EQ(Expression("tan(4 a^3 b) + cot(4 a b^3) + b^4 + sin(a^4) + cos(6 a^2 b^2)").toString(), - "sin(a^4) + tan(4 a^3 b) + cos(6 a^2 b^2) + cot(4 a b^3) + b^4"); - EXPECT_EQ(Expression("tan(4 a^3 b) + cot(sin(4 a b^3)) + b^4 + asin(sin(a^4)) + cos(6 a^2 b^2)").toString(), - "asin(sin(a^4)) + tan(4 a^3 b) + cos(6 a^2 b^2) + cot(sin(4 a b^3)) + b^4"); - EXPECT_EQ(Expression("tan(4 a_1^3 b) + cot(sin(4 a_1 b^3)) + b^4 + asin(sin(a_1^4)) + cos(6 a_1^2 b^2)").toString(), - "asin(sin(a_1^4)) + tan(4 a_1^3 b) + cos(6 a_1^2 b^2) + cot(sin(4 a_1 b^3)) + b^4"); - EXPECT_EQ(Expression("a!!!!!!!!!!").toString(), "a!!!!!!!!!!"); - EXPECT_EQ(Expression("a% * a!!! * a! * a!!").toString(), "(a a! a!! a!!!)/100"); - EXPECT_EQ(Expression("a! sin(a)").toString(), "a! sin(a)"); - EXPECT_EQ(Expression("sin(a) a!").toString(), "a! sin(a)"); - EXPECT_EQ(Expression("sin(a) a").toString(), "a sin(a)"); - EXPECT_EQ(Expression("a sin(a)").toString(), "a sin(a)"); - EXPECT_EQ(Expression("cos(b) sin(a)").toString(), "sin(a) cos(b)"); - EXPECT_EQ(Expression("cos(b) log(b, a)").toString(), "log(b, a) cos(b)"); - EXPECT_EQ(Expression("cos(a) log(b, c)").toString(), "log(b, c) cos(a)"); - EXPECT_EQ(Expression("cos(b^2) log(b, c)").toString(), "log(b, c) cos(b^2)"); - EXPECT_EQ(Expression("(x + y^3)^2 * sin(x)/ln(2)/x^2 - (2 sin(x) y^3)/(x ln(2))").toString(), "sin(x)/ln(2) + (y^6 sin(x))/(x^2 ln(2))"); - - EXPECT_EQ(Expression("1 / (1 - tan(2))").toString(), "cos(2)/(cos(2) - sin(2))"); - EXPECT_EQ(Expression("1 / (1 - cot(2))").toString(), "sin(2)/(sin(2) - cos(2))"); - EXPECT_EQ(Expression("1 / (1 - tanh(2))").toString(), "cosh(2)/(cosh(2) - sinh(2))"); - EXPECT_EQ(Expression("1 / (1 - coth(2))").toString(), "sinh(2)/(sinh(2) - cosh(2))"); - EXPECT_EQ(Expression("1 / (1 - sec(2))").toString(), "cos(2)/(cos(2) - 1)"); - EXPECT_EQ(Expression("1 / (1 - csc(2))").toString(), "sin(2)/(sin(2) - 1)"); - EXPECT_EQ(Expression("1 / (1 - sech(2))").toString(), "cosh(2)/(cosh(2) - 1)"); - EXPECT_EQ(Expression("1 / (1 - csch(2))").toString(), "sinh(2)/(sinh(2) - 1)"); - - EXPECT_EQ(Expression("a=a").toString(), "True"); - EXPECT_EQ(Expression("a+a=2*a").toString(), "True"); - EXPECT_EQ(Expression("a=b").toString(), "a - b = 0"); - EXPECT_EQ(Expression("a!=a").toString(), "False"); - EXPECT_EQ(Expression("a+a!=2*a").toString(), "False"); - EXPECT_EQ(Expression("a!=b").toString(), "a - b != 0"); - EXPECT_EQ(Expression("x<6").toString(), "x - 6 < 0"); - EXPECT_EQ(Expression("x<=6").toString(), "x - 6 <= 0"); - EXPECT_EQ(Expression("x>6").toString(), "x - 6 > 0"); - EXPECT_EQ(Expression("x>=6").toString(), "x - 6 >= 0"); - EXPECT_EQ(Expression("(5+5)=(2*5)").toString(), "True"); - EXPECT_EQ(Expression("((((5+5)=(2*5))))").toString(), "True"); - EXPECT_EQ(Expression("((1*1))(5+5)=((2*5)/(1/1))").toString(), "True"); - EXPECT_EQ(Expression("-x - 10 = 0").toString(), "x + 10 = 0"); - EXPECT_EQ(Expression("2x = 0").toString(), "x = 0"); - EXPECT_EQ(Expression("2x - 10 = 0").toString(), "x - 5 = 0"); - EXPECT_EQ(Expression("-a > 0").toString(), "a < 0"); - EXPECT_EQ(Expression("-2a + 5 > 6").toString(), "a + 1/2 < 0"); - EXPECT_EQ(Expression("-2a+5>6").toString(), "a + 1/2 < 0"); - EXPECT_EQ(Expression("-6x^2 + 4x - 20 = 15x - 9").toString(), "x^2 + (11 x)/6 + 11/6 = 0"); - EXPECT_EQ(Expression("2 a^5 b - 4 a b^5 = 0").toString(), "a^5 b - 2 a b^5 = 0"); - EXPECT_EQ(Expression("-2 a^5 b + 4 a b^5 = 0").toString(), "a^5 b - 2 a b^5 = 0"); - - EXPECT_EQ(Expression("sin(E)=sin(E)").toString(), "True"); - EXPECT_EQ(Expression("sin(E)>sin(E)").toString(), "False"); - EXPECT_EQ(Expression("sin(E)>=sin(E)").toString(), "True"); - EXPECT_EQ(Expression("sin(E)ln(5)").toString(), "False"); - EXPECT_EQ(Expression("log(E,5)<=ln(5)").toString(), "True"); - EXPECT_EQ(Expression("log(E,5)>=ln(5)").toString(), "True"); - EXPECT_EQ(Expression("log(1deg, (1deg)^(1deg)) = 1deg").toString(), "True"); - EXPECT_EQ(Expression("E^Pi > Pi^E").toString(), "True"); - EXPECT_EQ(Expression("Pi^E < E^Pi").toString(), "True"); - EXPECT_EQ(Expression("log(floor(E), E) = lb(E)").toString(), "True"); - - EXPECT_EQ(Expression("derivative(2, x)").toString(), "0"); - EXPECT_EQ(Expression("derivative(2 + I, x)").toString(), "0"); - EXPECT_EQ(Expression("derivative(E, x)").toString(), "0"); - EXPECT_EQ(Expression("derivative(x, x)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x, y)").toString(), "0"); - EXPECT_EQ(Expression("derivative(x_1, x_1)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x_1, x_2)").toString(), "0"); - EXPECT_EQ(Expression("derivative(-x, x)").toString(), "-1"); - EXPECT_EQ(Expression("derivative(x + y, x)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x + 2, x)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x + (2+I), x)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x - y, x)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x - 2, x)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x - (2+I), x)").toString(), "1"); - EXPECT_EQ(Expression("derivative(x * y, x)").toString(), "y"); - EXPECT_EQ(Expression("derivative(x * 2, x)").toString(), "2"); - EXPECT_EQ(Expression("derivative(x * (2+I), x)").toString(), "2 + I"); - EXPECT_EQ(Expression("derivative(x / y, x)").toString(), "1/y"); - EXPECT_EQ(Expression("derivative(y / x, x)").toString(), "-y/(x^2)"); - EXPECT_EQ(Expression("derivative(x / 2, x)").toString(), "1/2"); - EXPECT_EQ(Expression("derivative(2 / x, x)").toString(), "-2/(x^2)"); - EXPECT_EQ(Expression("derivative(x / (2+I), x)").toString(), "2/5 - 1/5 I"); - EXPECT_EQ(Expression("derivative((2+I) / x, x)").toString(), "-(2 + I)/(x^2)"); - EXPECT_EQ(Expression("derivative(x mod y, x)").toString(), "derivative(x mod y, x)"); - EXPECT_EQ(Expression("derivative(y mod x, x)").toString(), "derivative(y mod x, x)"); - EXPECT_EQ(Expression("derivative(x mod 2, x)").toString(), "derivative(x mod 2, x)"); - EXPECT_EQ(Expression("derivative(2 mod x, x)").toString(), "derivative(2 mod x, x)"); - EXPECT_EQ(Expression("derivative(x ^ x, x)").toString(), "x^x ln(x) + x^x"); - EXPECT_EQ(Expression("derivative(x ^ y, x)").toString(), "x^(y - 1) y"); - EXPECT_EQ(Expression("derivative(y ^ x, x)").toString(), "y^x ln(y)"); - EXPECT_EQ(Expression("derivative(x ^ 2, x)").toString(), "2 x"); - EXPECT_EQ(Expression("derivative(2 ^ x, x)").toString(), "2^x ln(2)"); - EXPECT_EQ(Expression("derivative(x ^ (3/5), x)").toString(), "3/(5 x^(2/5))"); - EXPECT_EQ(Expression("derivative((3/5) ^ x, x)").toString(), "(3/5)^x ln(3/5)"); - EXPECT_EQ(Expression("derivative(x ^ (-3/5), x)").toString(), "-3/(5 x^(8/5))"); - EXPECT_EQ(Expression("derivative((-3/5) ^ x, x)").toString(), "(-3/5)^x ln(-3/5)"); - EXPECT_EQ(Expression("derivative(x ^ (2+I), x)").toString(), "(2 + I) x^(1 + I)"); - EXPECT_EQ(Expression("derivative((2+I) ^ x, x)").toString(), "(2 + I)^x ln(2 + I)"); - EXPECT_EQ(Expression("derivative(x deg, x)").toString(), "Pi/180"); - EXPECT_EQ(Expression("derivative(x%, x)").toString(), "1/100"); - EXPECT_EQ(Expression("derivative(x!, x)").toString(), "derivative(x!, x)"); - EXPECT_EQ(Expression("derivative(sqrt(x), x)").toString(), "1/(2 sqrt(x))"); - EXPECT_EQ(Expression("derivative(root(x, 3), x)").toString(), "1/(3 x^(2/3))"); - EXPECT_EQ(Expression("derivative(root(x, 10), x)").toString(), "1/(10 x^(9/10))"); - EXPECT_EQ(Expression("derivative(exp(x), x)").toString(), "E^x"); - EXPECT_EQ(Expression("derivative(ln(x), x)").toString(), "1/x"); - EXPECT_EQ(Expression("derivative(lb(x), x)").toString(), "1/(ln(2) x)"); - EXPECT_EQ(Expression("derivative(lg(x), x)").toString(), "1/(ln(10) x)"); - EXPECT_EQ(Expression("derivative(log(x, y), x)").toString(), "-ln(y)/(ln(x)^2 x)"); - EXPECT_EQ(Expression("derivative(log(y, x), x)").toString(), "1/(x ln(y))"); - EXPECT_EQ(Expression("derivative(log(x, 2), x)").toString(), "-ln(2)/(ln(x)^2 x)"); - EXPECT_EQ(Expression("derivative(log(2, x), x)").toString(), "1/(ln(2) x)"); - EXPECT_EQ(Expression("derivative(log(x, (3/5)), x)").toString(), "-ln(3/5)/(ln(x)^2 x)"); - EXPECT_EQ(Expression("derivative(log((3/5), x), x)").toString(), "1/(ln(3/5) x)"); - EXPECT_EQ(Expression("derivative(log(x, (-3/5)), x)").toString(), "-ln(-3/5)/(ln(x)^2 x)"); - EXPECT_EQ(Expression("derivative(log((-3/5), x), x)").toString(), "1/(ln(-3/5) x)"); - EXPECT_EQ(Expression("derivative(log(x, (2+I)), x)").toString(), "-ln(2 + I)/(ln(x)^2 x)"); - EXPECT_EQ(Expression("derivative(log((2+I), x), x)").toString(), "1/(ln(2 + I) x)"); - EXPECT_EQ(Expression("derivative(sin(x), x)").toString(), "cos(x)"); - EXPECT_EQ(Expression("derivative(sin(x^2), x)").toString(), "2 x cos(x^2)"); - EXPECT_EQ(Expression("derivative(cos(x), x)").toString(), "-sin(x)"); - EXPECT_EQ(Expression("derivative(cos(x^2), x)").toString(), "-2 x sin(x^2)"); - EXPECT_EQ(Expression("derivative(tan(x), x)").toString(), "sec(x)^2"); - EXPECT_EQ(Expression("derivative(tan(x^2), x)").toString(), "2 x sec(x^2)^2"); - EXPECT_EQ(Expression("derivative(cot(x), x)").toString(), "-csc(x)^2"); - EXPECT_EQ(Expression("derivative(cot(x^2), x)").toString(), "-2 x csc(x^2)^2"); - EXPECT_EQ(Expression("derivative(sec(x), x)").toString(), "sec(x)^2 sin(x)"); - EXPECT_EQ(Expression("derivative(sec(x^2), x)").toString(), "2 x sec(x^2)^2 sin(x^2)"); - EXPECT_EQ(Expression("derivative(csc(x), x)").toString(), "-csc(x)^2 cos(x)"); - EXPECT_EQ(Expression("derivative(csc(x^2), x)").toString(), "-2 x csc(x^2)^2 cos(x^2)"); - EXPECT_EQ(Expression("derivative(asin(x), x)").toString(), "1/sqrt(-x^2 + 1)"); - EXPECT_EQ(Expression("derivative(asin(x^2), x)").toString(), "(2 x)/sqrt(-x^4 + 1)"); - EXPECT_EQ(Expression("derivative(acos(x), x)").toString(), "-1/sqrt(-x^2 + 1)"); - EXPECT_EQ(Expression("derivative(acos(x^2), x)").toString(), "-(2 x)/sqrt(-x^4 + 1)"); - EXPECT_EQ(Expression("derivative(atan(x), x)").toString(), "1/(x^2 + 1)"); - EXPECT_EQ(Expression("derivative(atan(x^2), x)").toString(), "(2 x)/(x^4 + 1)"); - EXPECT_EQ(Expression("derivative(acot(x), x)").toString(), "-1/(x^2 + 1)"); - EXPECT_EQ(Expression("derivative(acot(x^2), x)").toString(), "-(2 x)/(x^4 + 1)"); - EXPECT_EQ(Expression("derivative(asec(x), x)").toString(), "1/(sqrt(1 - 1/(x^2)) x^2)"); - EXPECT_EQ(Expression("derivative(asec(x^2), x)").toString(), "2/(sqrt(1 - 1/(x^4)) x^3)"); - EXPECT_EQ(Expression("derivative(acsc(x), x)").toString(), "-1/(sqrt(1 - 1/(x^2)) x^2)"); - EXPECT_EQ(Expression("derivative(acsc(x^2), x)").toString(), "-2/(sqrt(1 - 1/(x^4)) x^3)"); - EXPECT_EQ(Expression("derivative(sinh(x), x)").toString(), "cosh(x)"); - EXPECT_EQ(Expression("derivative(sinh(x^2), x)").toString(), "2 x cosh(x^2)"); - EXPECT_EQ(Expression("derivative(cosh(x), x)").toString(), "sinh(x)"); - EXPECT_EQ(Expression("derivative(cosh(x^2), x)").toString(), "2 x sinh(x^2)"); - EXPECT_EQ(Expression("derivative(tanh(x), x)").toString(), "sech(x)^2"); - EXPECT_EQ(Expression("derivative(tanh(x^2), x)").toString(), "2 x sech(x^2)^2"); - EXPECT_EQ(Expression("derivative(coth(x), x)").toString(), "-csch(x)^2"); - EXPECT_EQ(Expression("derivative(coth(x^2), x)").toString(), "-2 x csch(x^2)^2"); - EXPECT_EQ(Expression("derivative(sech(x), x)").toString(), "-sech(x)^2 sinh(x)"); - EXPECT_EQ(Expression("derivative(sech(x^2), x)").toString(), "-2 x sech(x^2)^2 sinh(x^2)"); - EXPECT_EQ(Expression("derivative(csch(x), x)").toString(), "-csch(x)^2 cosh(x)"); - EXPECT_EQ(Expression("derivative(csch(x^2), x)").toString(), "-2 x csch(x^2)^2 cosh(x^2)"); - EXPECT_EQ(Expression("derivative(asinh(x), x)").toString(), "1/sqrt(x^2 + 1)"); - EXPECT_EQ(Expression("derivative(asinh(x^2), x)").toString(), "(2 x)/sqrt(x^4 + 1)"); - EXPECT_EQ(Expression("derivative(acosh(x), x)").toString(), "1/(sqrt(x + 1) sqrt(x - 1))"); - EXPECT_EQ(Expression("derivative(acosh(x^2), x)").toString(), "(2 x)/(sqrt(x^2 + 1) sqrt(x^2 - 1))"); - EXPECT_EQ(Expression("derivative(atanh(x), x)").toString(), "-1/(x^2 - 1)"); - EXPECT_EQ(Expression("derivative(atanh(x^2), x)").toString(), "-(2 x)/(x^4 - 1)"); - EXPECT_EQ(Expression("derivative(acoth(x), x)").toString(), "-1/(x^2 - 1)"); - EXPECT_EQ(Expression("derivative(acoth(x^2), x)").toString(), "-(2 x)/(x^4 - 1)"); - EXPECT_EQ(Expression("derivative(asech(x), x)").toString(), "-1/(sqrt(1 + 1/x) sqrt(-1 + 1/x) x^2)"); - EXPECT_EQ(Expression("derivative(asech(x^2), x)").toString(), "-2/(sqrt(1 + 1/(x^2)) sqrt(-1 + 1/(x^2)) x^3)"); - EXPECT_EQ(Expression("derivative(acsch(x), x)").toString(), "-1/(sqrt(1 + 1/(x^2)) x^2)"); - EXPECT_EQ(Expression("derivative(acsch(x^2), x)").toString(), "-2/(sqrt(1 + 1/(x^4)) x^3)"); - EXPECT_EQ(Expression("derivative(abs(x), x)").toString(), "derivative(abs(x), x)"); - EXPECT_EQ(Expression("derivative(sign(x), x)").toString(), "derivative(sign(x), x)"); - EXPECT_EQ(Expression("derivative(floor(x), x)").toString(), "derivative(floor(x), x)"); - EXPECT_EQ(Expression("derivative(ceil(x), x)").toString(), "derivative(ceil(x), x)"); - EXPECT_EQ(Expression("derivative(min(x, y), x)").toString(), "derivative(min(x, y), x)"); - EXPECT_EQ(Expression("derivative(max(x, y), x)").toString(), "derivative(max(x, y), x)"); - EXPECT_EQ(Expression("derivative(integral(x!, x), x)").toString(), "derivative(integral(x!, x), x)"); - EXPECT_EQ(Expression("derivative(a b x, x)").toString(), "a b"); - EXPECT_EQ(Expression("derivative(a b c x, x)").toString(), "a b c"); - EXPECT_EQ(Expression("derivative(a x y, x)").toString(), "a y"); - EXPECT_EQ(Expression("derivative(x y z, x)").toString(), "y z"); - EXPECT_EQ(Expression("derivative(x y z z_1, x)").toString(), "y z z_1"); - EXPECT_EQ(Expression("derivative(3x^2 - 2x, x)").toString(), "6 x - 2"); - EXPECT_EQ(Expression("derivative(x^4 - 3x^3 + 2x - 1, x)").toString(), "4 x^3 - 9 x^2 + 2"); - EXPECT_EQ(Expression("derivative(x^2 cos(x), x)").toString(), "-x^2 sin(x) + 2 x cos(x)"); - EXPECT_EQ(Expression("derivative(E^(x^2 + 2x), x)").toString(), "2 E^(x^2 + 2 x) x + 2 E^(x^2 + 2 x)"); // TODO: 2 E^(x^2 + 2 x) (x + 1) - EXPECT_EQ(Expression("derivative(E^sin(x), x)").toString(), "E^sin(x) cos(x)"); - EXPECT_EQ(Expression("derivative(5E^(-x^3), x)").toString(), "-15 E x^2 E^(-x^3 - 1)"); // TODO: -15 E^(-x^3) x^2 - EXPECT_EQ(Expression("derivative(8^(x^2 - 5x), x)").toString(), "(16*8^(x^2 - 5 x - 1) x - 40*8^(x^2 - 5 x - 1)) ln(8)"); // TODO: simplify this - EXPECT_EQ(Expression("derivative((1 + 5x)^3, x)").toString(), "375 x^2 + 150 x + 15"); - EXPECT_EQ(Expression("derivative(x^5 (2 - x/3 + 3x^2), x)").toString(), "21 x^6 - 2 x^5 + 10 x^4"); - EXPECT_EQ(Expression("derivative(x^3 3^x, x)").toString(), "x^3*3^x ln(3) + 3 x^2*3^x"); - EXPECT_EQ(Expression("derivative(ln(3x + 5), x)").toString(), "3/(3 x + 5)"); - EXPECT_EQ(Expression("derivative(ln(x^5 - 2x^2 + 5), x)").toString(), "(5 x^4 - 4 x)/(x^5 - 2 x^2 + 5)"); - EXPECT_EQ(Expression("derivative(lb(sin(x)^2), x)").toString(), "(2 cot(x))/ln(2)"); - EXPECT_EQ(Expression("derivative(root(2 + x^4, 3), x)").toString(), "(4 x^3)/(3 (x^4 + 2)^(2/3))"); - EXPECT_EQ(Expression("derivative(sqrt(x) + 5/root(x, 5) - 1/x^9 + 7/(9x^5), x)").toString(), "9/(x^10) - 35/(9 x^6) - 1/(x^(6/5)) + 1/(2 sqrt(x))"); - EXPECT_EQ(Expression("derivative(cos(5x), x)").toString(), "-5 sin(5 x)"); - EXPECT_EQ(Expression("derivative(asin(5x), x)").toString(), "5/sqrt(-25 x^2 + 1)"); - EXPECT_EQ(Expression("derivative(sin(x)^2, x)").toString(), "sin(2 x)"); - EXPECT_EQ(Expression("derivative(cos(x)^2, x)").toString(), "-sin(2 x)"); - EXPECT_EQ(Expression("derivative(ln(cos(3x)), x)").toString(), "-3 tan(3 x)"); - EXPECT_EQ(Expression("derivative(log(sin(x^5), tan(x^3)), x)").toString(), "(3 sec(x^3)^2 x^2 cos(x^3) csc(x^3))/ln(sin(x^5)) - (5 x^4 cot(x^5) ln(tan(x^3)))/(ln(sin(x^5))^2)"); - EXPECT_EQ(Expression("derivative(acos(4x + 5)^5, x)").toString(), "-(20 acos(4 x + 5)^4)/sqrt(-16 x^2 - 40 x - 24)"); - EXPECT_EQ(Expression("derivative(sin(sin(sin(x))), x)").toString(), "cos(sin(sin(x))) cos(sin(x)) cos(x)"); - EXPECT_EQ(Expression("derivative(cos(tan(cot(x))), x)").toString(), "sec(cot(x))^2 csc(x)^2 sin(tan(cot(x)))"); - EXPECT_EQ(Expression("derivative(a b cos(x), x)").toString(), "-a b sin(x)"); - EXPECT_EQ(Expression("derivative(a x cos(x) ln(x) sign(x), x)").toString(), "(a x derivative(sign(x), x) cos(x) - a x sin(x) sign(x) + a cos(x) sign(x)) ln(x) + a cos(x) sign(x)"); - EXPECT_EQ(Expression("derivative(a * c * cos(x)/(x^2 + 1), x)").toString(), "-(a c x^2 sin(x) + 2 a c x cos(x) + a c sin(x))/(x^4 + 2 x^2 + 1)"); - EXPECT_EQ(Expression("derivative((2x^3)/tan(x), x)").toString(), "-2 x^3 csc(x)^2 + 6 x^2 cot(x)"); - EXPECT_EQ(Expression("derivative(acos(x)/(x^2 + 1), x)").toString(), "-(x^2 + 2 x sqrt(-x^2 + 1) acos(x) + 1)/(sqrt(-x^2 + 1) x^4 + 2 sqrt(-x^2 + 1) x^2 + sqrt(-x^2 + 1))"); - EXPECT_EQ(Expression("derivative(sin(x)/sinh(x), x)").toString(), "-csch(x)^2 sin(x) cosh(x) + cos(x) csch(x)"); - EXPECT_EQ(Expression("derivative(tan(x)/tanh(x), x)").toString(), "sec(x)^2 coth(x) - csch(x)^2 tan(x)"); - EXPECT_EQ(Expression("derivative(derivative(derivative(sin(x^3), x), x), x)").toString(), "-27 x^6 cos(x^3) - 54 x^3 sin(x^3) + 6 cos(x^3)"); - EXPECT_EQ(Expression("derivative(x^2, x) + derivative(y^2, y)").toString(), "2 x + 2 y"); - EXPECT_EQ(Expression("derivative(sin(x^3), x) + derivative(cos(y^3), y) / derivative(tan(ln(y)), y)").toString(), "3 x^2 cos(x^3) - (3 y^3 sin(y^3))/(sec(ln(y))^2)"); - - // TODO: integral - EXPECT_EQ(Expression("integral(x, x)").toString(), "integral(x, x)"); - EXPECT_EQ(Expression("integral(x+x, x)").toString(), "integral(2 x, x)"); - EXPECT_EQ(Expression("integral(x, x) + integral(b, b)").toString(), "integral(b, b) + integral(x, x)"); - - EXPECT_EQ(Expression("~True").toString(), "False"); - EXPECT_EQ(Expression("~False").toString(), "True"); - EXPECT_EQ(Expression("True&False").toString(), "False"); - EXPECT_EQ(Expression("~~~True&~~~~False|~~~~~~False|False").toString(), "False"); - EXPECT_EQ(Expression("True|False").toString(), "True"); - EXPECT_EQ(Expression("True&False|True&False").toString(), "False"); - EXPECT_EQ(Expression("False&True|True&False").toString(), "False"); - EXPECT_EQ(Expression("False&True|True&True|False").toString(), "True"); - EXPECT_EQ(Expression("False|~False&True").toString(), "True"); - EXPECT_EQ(Expression("(False|False&~True)|(True&~(False|True))").toString(), "False"); - EXPECT_EQ(Expression("True !<-> True").toString(), "False"); - EXPECT_EQ(Expression("(False -> False & ~True) !<-> (True <-> ~(False|True))").toString(), "True"); - EXPECT_EQ(Expression("False <-> ~False & True").toString(), "False"); - EXPECT_EQ(Expression("False <-> True -> False").toString(), "True"); - - EXPECT_EQ(Expression("~(1=1)").toString(), "False"); - EXPECT_EQ(Expression("~(1=2)").toString(), "True"); - EXPECT_EQ(Expression("(1=1)&(1=2)").toString(), "False"); - EXPECT_EQ(Expression("(1=1)|(1=2)").toString(), "True"); - EXPECT_EQ(Expression("(1=2)|~(1=2)&(1=1)").toString(), "True"); - EXPECT_EQ(Expression("((1=2)|(1=2)&~(1=1))|((1=1)&~((1=2)|(1=1)))").toString(), "False"); - EXPECT_EQ(Expression("((1=2) -> (1=2) & ~(1=1)) !<-> ((1=1) <-> ~((1=2) | (1=1)))").toString(), "True"); - EXPECT_EQ(Expression("False|1=1").toString(), "True"); - EXPECT_EQ(Expression("1=1|False").toString(), "True"); - EXPECT_EQ(Expression("a>b|a").toString(), "a - b > 0 | a"); - EXPECT_EQ(Expression("x = -7 | x = 7 | x = -7 | x = 7").toString(), "x - 7 = 0 | x + 7 = 0"); - EXPECT_EQ(Expression("x = -7 & x = 7 & x = -7 & x = 7").toString(), "x - 7 = 0 & x + 7 = 0"); - - EXPECT_EQ(Expression("~(x = 1)").toString(), "x - 1 != 0"); - EXPECT_EQ(Expression("~(x != 1)").toString(), "x - 1 = 0"); - EXPECT_EQ(Expression("~(x > 1)").toString(), "x - 1 <= 0"); - EXPECT_EQ(Expression("~(x < 1)").toString(), "x - 1 >= 0"); - EXPECT_EQ(Expression("~(x >= 1)").toString(), "x - 1 < 0"); - EXPECT_EQ(Expression("~(x <= 1)").toString(), "x - 1 > 0"); - EXPECT_EQ(Expression("~(x <= 1 | y >= 1)").toString(), "x - 1 > 0 & y - 1 < 0"); - - EXPECT_EQ(Expression("~a").toString(), "~a"); - EXPECT_EQ(Expression("~~a").toString(), "a"); - EXPECT_EQ(Expression("~~~a").toString(), "~a"); - EXPECT_EQ(Expression("~~~~~~~~~~a").toString(), "a"); - EXPECT_EQ(Expression("~~~~~~~~~~~a").toString(), "~a"); - - EXPECT_EQ(Expression("a & b").toString(), "a & b"); - EXPECT_EQ(Expression("a | b").toString(), "a | b"); - EXPECT_EQ(Expression("a -> b").toString(), "~a | b"); - EXPECT_EQ(Expression("a <-> b").toString(), "(a & b) | (~a & ~b)"); - EXPECT_EQ(Expression("a !<-> b").toString(), "(a & ~b) | (~a & b)"); - - EXPECT_EQ(Expression("a & a").toString(), "a"); - EXPECT_EQ(Expression("a | a").toString(), "a"); - EXPECT_EQ(Expression("a -> a").toString(), "True"); - EXPECT_EQ(Expression("a <-> a").toString(), "True"); - EXPECT_EQ(Expression("a !<-> a").toString(), "False"); - - EXPECT_EQ(Expression("a & ~a").toString(), "False"); - EXPECT_EQ(Expression("a | ~a").toString(), "True"); - EXPECT_EQ(Expression("a -> ~a").toString(), "~a"); - EXPECT_EQ(Expression("a <-> ~a").toString(), "False"); - EXPECT_EQ(Expression("a !<-> ~a").toString(), "True"); - - EXPECT_EQ(Expression("~a & a").toString(), "False"); - EXPECT_EQ(Expression("~a | a").toString(), "True"); - EXPECT_EQ(Expression("~a -> a").toString(), "a"); - EXPECT_EQ(Expression("~a <-> a").toString(), "False"); - EXPECT_EQ(Expression("~a !<-> a").toString(), "True"); - - EXPECT_EQ(Expression("~a & ~a").toString(), "~a"); - EXPECT_EQ(Expression("~a | ~a").toString(), "~a"); - EXPECT_EQ(Expression("~a -> ~a").toString(), "True"); - EXPECT_EQ(Expression("~a <-> ~a").toString(), "True"); - EXPECT_EQ(Expression("~a !<-> ~a").toString(), "False"); - - EXPECT_EQ(Expression("a & False").toString(), "False"); - EXPECT_EQ(Expression("a | False").toString(), "a"); - EXPECT_EQ(Expression("a -> False").toString(), "~a"); - EXPECT_EQ(Expression("a <-> False").toString(), "~a"); - EXPECT_EQ(Expression("a !<-> False").toString(), "a"); - - EXPECT_EQ(Expression("a & True").toString(), "a"); - EXPECT_EQ(Expression("a | True").toString(), "True"); - EXPECT_EQ(Expression("a -> True").toString(), "True"); - EXPECT_EQ(Expression("a <-> True").toString(), "a"); - EXPECT_EQ(Expression("a !<-> True").toString(), "~a"); - - EXPECT_EQ(Expression("a<->(True)<->(False)").toString(), "~a"); - EXPECT_EQ(Expression("a<->(True)!<->(False)").toString(), "a"); - EXPECT_EQ(Expression("True & b & False & c").toString(), "False"); - EXPECT_EQ(Expression("True | b | False | c").toString(), "True"); - EXPECT_EQ(Expression("True | a | b | False").toString(), "True"); - EXPECT_EQ(Expression("a<->a<->a<->a<->a<->a").toString(), "True"); - EXPECT_EQ(Expression("a<->a<->a<->a<->a<->a<->a").toString(), "a"); - EXPECT_EQ(Expression("a&b->b&c").toString(), "~a | (b & c) | ~b"); - EXPECT_EQ(Expression("a&b&c").toString(), "a & b & c"); - EXPECT_EQ(Expression("a&(b&c)").toString(), "a & b & c"); - EXPECT_EQ(Expression("a & ~b & c").toString(), "a & ~b & c"); - EXPECT_EQ(Expression("a | (~b & c)").toString(), "a | (~b & c)"); - EXPECT_EQ(Expression("(a | ~b) & c").toString(), "(a & c) | (~b & c)"); - EXPECT_EQ(Expression("~(a & b)").toString(), "~a | ~b"); - EXPECT_EQ(Expression("~(a | b)").toString(), "~a & ~b"); - EXPECT_EQ(Expression("~(a & b & c)").toString(), "~a | ~b | ~c"); - EXPECT_EQ(Expression("~(a | b | c)").toString(), "~a & ~b & ~c"); - EXPECT_EQ(Expression("~(~a & ~a)").toString(), "a"); - EXPECT_EQ(Expression("b&c&d | a&c&d | a&b&c").toString(), "(a & b & c) | (a & c & d) | (b & c & d)"); - EXPECT_EQ(Expression("a | (a & b)").toString(), "a"); - EXPECT_EQ(Expression("(a & b & c) | (a & b)").toString(), "a & b"); - EXPECT_EQ(Expression("a & (a | b)").toString(), "a"); - EXPECT_EQ(Expression("(a | b | c) & (a | b)").toString(), "a | b"); - EXPECT_EQ(Expression("(a & b & c) | (a & c)").toString(), "a & c"); - EXPECT_EQ(Expression("(a & ~b) | (a & b)").toString(), "a"); - EXPECT_EQ(Expression("(a | b | c) & (a | b)").toString(), "a | b"); - EXPECT_EQ(Expression("~(a & b) | ~(~a & c)").toString(), "True"); - EXPECT_EQ(Expression("~(a | b) & ~(~a | c)").toString(), "False"); - EXPECT_EQ(Expression("(x & ~y & z) | (y & z)").toString(), "(x & ~y & z) | (y & z)"); - EXPECT_EQ(Expression("(x | ~y | (x | ~y | z) & (y | z)) & (y | (x & ~y & z) | (y & z))").toString(), - "(x & ~y & z) | (x & y) | (y & z)"); - EXPECT_EQ(Expression("~a & b | ~c -> a <-> b !<-> c").toString(), - "(a & b & ~c) | (~a & ~b & ~c) | (~a & c) | (~b & c)"); - EXPECT_EQ(Expression("~~~a & ~~b | ~~~c -> ~~a <-> ~~b !<-> ~~c").toString(), - "(a & b & ~c) | (~a & ~b & ~c) | (~a & c) | (~b & c)"); - EXPECT_EQ(Expression("((a | b) & (a -> c)) <-> (~a -> b)").toString(), "(a & c) | ~a | (b & c)"); - - EXPECT_EQ(Expression("x=1&a").toString(), "a & x - 1 = 0"); - EXPECT_EQ(Expression("True & a = b").toString(), "a - b = 0"); - - EXPECT_EQ(Expression("x_1").toString(), "x_1"); - EXPECT_EQ(Expression("x+x_1").toString(), "x + x_1"); - EXPECT_EQ(Expression("x*x_1").toString(), "x x_1"); - EXPECT_EQ(Expression("x_2^2").toString(), "x_2^2"); - EXPECT_EQ(Expression("sin(x_1)").toString(), "sin(x_1)"); - - EXPECT_EQ(Expression("min(1)").toString(), "1"); - EXPECT_EQ(Expression("min(1,2)").toString(), "1"); - EXPECT_EQ(Expression("min(1,2,3)").toString(), "1"); - EXPECT_EQ(Expression("min(1, 2, 3, 4)").toString(), "1"); - EXPECT_EQ(Expression("min(-1, -2, -3, -4)").toString(), "-4"); - EXPECT_EQ(Expression("min(x)").toString(), "x"); - EXPECT_EQ(Expression("min(1,x)").toString(), "min(x, 1)"); - EXPECT_EQ(Expression("min(1,2,x)").toString(), "min(x, 1)"); - EXPECT_EQ(Expression("min(1, 2, x, 4)").toString(), "min(x, 1)"); - EXPECT_EQ(Expression("min(-1, x, y, -4)").toString(), "min(x, y, -4)"); - EXPECT_EQ(Expression("min(E, x, y, z)").toString(), "min(x, y, z, E)"); - - EXPECT_EQ(Expression("max(1)").toString(), "1"); - EXPECT_EQ(Expression("max(1,2)").toString(), "2"); - EXPECT_EQ(Expression("max(1,2,3)").toString(), "3"); - EXPECT_EQ(Expression("max(1, 2, 3, 4)").toString(), "4"); - EXPECT_EQ(Expression("max(-1, -2, -3, -4)").toString(), "-1"); - EXPECT_EQ(Expression("max(x)").toString(), "x"); - EXPECT_EQ(Expression("max(1,x)").toString(), "max(x, 1)"); - EXPECT_EQ(Expression("max(1,2,x)").toString(), "max(x, 2)"); - EXPECT_EQ(Expression("max(1, 2, x, 4)").toString(), "max(x, 4)"); - EXPECT_EQ(Expression("max(-1, x, y, -4)").toString(), "max(x, y, -1)"); - EXPECT_EQ(Expression("max(E, x, y, z)").toString(), "max(x, y, z, E)"); - - EXPECT_EQ(Expression("ln(x) + ln(y)").toString(), "ln(x y)"); - EXPECT_EQ(Expression("ln(x) - ln(y)").toString(), "ln(x/y)"); - EXPECT_EQ(Expression("-ln(x) + ln(y)").toString(), "ln(y/x)"); - EXPECT_EQ(Expression("-ln(x) - ln(y)").toString(), "ln(1/(x y))"); - EXPECT_EQ(Expression("lb(x)/y").toString(), "log(2, x)/y"); - EXPECT_EQ(Expression("ln((E)/(20000.1EE)) + ln(20000.1E)").toString(), "0"); - EXPECT_EQ(Expression("ln((10 E)^2) - ln(10 E 10 E)").toString(), "0"); - EXPECT_EQ(Expression("ln((10 E)^2) - 2 ln(10 E)").toString(), "0"); - EXPECT_EQ(Expression("3 ln((10 E)^2) - 2 ln(10 E)").toString(), "4 ln(10 E)"); - EXPECT_EQ(Expression("ln((10 E)^(2ab)) - 2 a ln(10 E) b").toString(), "0"); - EXPECT_EQ(Expression("ln((10 E)^(2 ln(2))) - 2 ln(2) ln(10 E)").toString(), "0"); - EXPECT_EQ(Expression("log(2.3, (E)/(20000.1*E*E)) + log(2.3, 20000.1*E)").toString(), "0"); - EXPECT_EQ(Expression("log(2.3, (E)/(20000.1*E*E)) - log(2.3, 20000.1*E)").toString(), "log(23/10, 100/(40000400001 E^2))"); - EXPECT_EQ(Expression("log(2, 3) + log(3, 4)").toString(), "log(3, 4) + log(2, 3)"); - EXPECT_EQ(Expression("x log(2, 3) + log(2, 5)").toString(), "log(2, 5*3^x)"); - EXPECT_EQ(Expression("x log(2, 3) + log(2, 5a)").toString(), "log(2, 5 a 3^x)"); - EXPECT_EQ(Expression("log(2, 3) + 3log(3, 4)").toString(), "log(2, 3) + 3 log(3, 4)"); - EXPECT_EQ(Expression("3log(2x, 3) + log(3, 4)").toString(), "3 log(2 x, 3) + log(3, 4)"); - EXPECT_EQ(Expression("3log(2x, 3) + 4log(3, 4)").toString(), "3 log(2 x, 3) + 4 log(3, 4)"); - EXPECT_EQ(Expression("3log(2x, 3) + 5log(2x, 4)").toString(), "log(2 x, 27648)"); - - EXPECT_EQ(Expression("sin(asin(x))").toString(), "x"); - EXPECT_EQ(Expression("cos(acos(x))").toString(), "x"); - EXPECT_EQ(Expression("tan(atan(x))").toString(), "x"); - EXPECT_EQ(Expression("cot(acot(x))").toString(), "x"); - EXPECT_EQ(Expression("sec(asec(x))").toString(), "x"); - EXPECT_EQ(Expression("csc(acsc(x))").toString(), "x"); - EXPECT_EQ(Expression("asin(sin(x))").toString(), "asin(sin(x))"); - EXPECT_EQ(Expression("acos(cos(x))").toString(), "acos(cos(x))"); - EXPECT_EQ(Expression("atan(tan(x))").toString(), "atan(tan(x))"); - EXPECT_EQ(Expression("acot(cot(x))").toString(), "acot(cot(x))"); - EXPECT_EQ(Expression("asec(sec(x))").toString(), "asec(sec(x))"); - EXPECT_EQ(Expression("acsc(csc(x))").toString(), "acsc(csc(x))"); - - EXPECT_EQ(Expression("sin(-x)").toString(), "-sin(x)"); - EXPECT_EQ(Expression("cos(-x)").toString(), "cos(x)"); - EXPECT_EQ(Expression("tan(-x)").toString(), "-tan(x)"); - EXPECT_EQ(Expression("cot(-x)").toString(), "-cot(x)"); - EXPECT_EQ(Expression("sec(-x)").toString(), "sec(x)"); - EXPECT_EQ(Expression("csc(-x)").toString(), "-csc(x)"); - - EXPECT_EQ(Expression("sin(x)/cos(x)").toString(), "tan(x)"); - EXPECT_EQ(Expression("(-2sin(x))/cos(x)").toString(), "-2 tan(x)"); - EXPECT_EQ(Expression("(2sin(x))/(3cos(x))").toString(), "(2 tan(x))/3"); - EXPECT_EQ(Expression("sin(x)^2/cos(x)").toString(), "sin(x)^2 sec(x)"); - EXPECT_EQ(Expression("sin(x)/cos(x)^2").toString(), "sec(x)^2 sin(x)"); - EXPECT_EQ(Expression("sin(x)^2/cos(x)^2").toString(), "tan(x)^2"); - EXPECT_EQ(Expression("(2sin(x))^2/cos(x)^2").toString(), "4 tan(x)^2"); - EXPECT_EQ(Expression("(2sin(x))^2/(3cos(x))^2").toString(), "(4 tan(x)^2)/9"); - - EXPECT_EQ(Expression("cos(x)/sin(x)").toString(), "cot(x)"); - EXPECT_EQ(Expression("(-2cos(x))/sin(x)").toString(), "-2 cot(x)"); - EXPECT_EQ(Expression("(2cos(x))/(3sin(x))").toString(), "(2 cot(x))/3"); - EXPECT_EQ(Expression("cos(x)^2/sin(x)").toString(), "cos(x)^2 csc(x)"); - EXPECT_EQ(Expression("cos(x)/sin(x)^2").toString(), "csc(x)^2 cos(x)"); - EXPECT_EQ(Expression("cos(x)^2/sin(x)^2").toString(), "cot(x)^2"); - EXPECT_EQ(Expression("(2cos(x))^2/sin(x)^2").toString(), "4 cot(x)^2"); - EXPECT_EQ(Expression("(2cos(x))^2/(3sin(x))^2").toString(), "(4 cot(x)^2)/9"); - - EXPECT_EQ(Expression("sec(x)/csc(x)").toString(), "tan(x)"); - EXPECT_EQ(Expression("csc(x)/sec(x)").toString(), "cot(x)"); - EXPECT_EQ(Expression("sec(x)*cot(x)").toString(), "csc(x)"); - EXPECT_EQ(Expression("csc(x)*tan(x)").toString(), "sec(x)"); - - EXPECT_EQ(Expression("sin(x)cos(x)").toString(), "sin(2 x)/2"); - EXPECT_EQ(Expression("sin(x)cos(x)sign(x)").toString(), "(sign(x) sin(2 x))/2"); - - EXPECT_EQ(Expression("sin(x)^2").toString(), "sin(x)^2"); - EXPECT_EQ(Expression("cos(x)^2").toString(), "cos(x)^2"); - EXPECT_EQ(Expression("1 - sin(x)^2").toString(), "cos(x)^2"); - EXPECT_EQ(Expression("-1 + sin(x)^2").toString(), "-cos(x)^2"); - EXPECT_EQ(Expression("2 - 2sin(x)^2").toString(), "2 cos(x)^2"); - EXPECT_EQ(Expression("-2 + 2sin(x)^2").toString(), "-2 cos(x)^2"); - EXPECT_EQ(Expression("1 - cos(x)^2").toString(), "sin(x)^2"); - EXPECT_EQ(Expression("-1 + cos(x)^2").toString(), "-sin(x)^2"); - EXPECT_EQ(Expression("2 - 2cos(x)^2").toString(), "2 sin(x)^2"); - EXPECT_EQ(Expression("-2 + 2cos(x)^2").toString(), "-2 sin(x)^2"); - EXPECT_EQ(Expression("1 - 2sin(x)^2").toString(), "-2 sin(x)^2 + 1"); // TODO: cos of double angle - EXPECT_EQ(Expression("1 - 2cos(x)^2").toString(), "-2 cos(x)^2 + 1"); // TODO: cos of double angle - - EXPECT_EQ(Expression("sin(x)^2 + cos(x)^2").toString(), "1"); - EXPECT_EQ(Expression("sin(x)^2 - cos(x)^2").toString(), "-cos(2 x)"); - EXPECT_EQ(Expression("-sin(x)^2 + cos(x)^2").toString(), "cos(2 x)"); - EXPECT_EQ(Expression("-sin(x)^2 - cos(x)^2").toString(), "-1"); - EXPECT_EQ(Expression("2sin(x)^2 + 2cos(x)^2").toString(), "2"); - EXPECT_EQ(Expression("sin(x)^2 + 2cos(x)^2").toString(), "sin(x)^2 + 2 cos(x)^2"); - EXPECT_EQ(Expression("2sin(x)^2 + cos(x)^2").toString(), "2 sin(x)^2 + cos(x)^2"); - EXPECT_EQ(Expression("2sin(x)^2 - 3cos(x)^2").toString(), "2 sin(x)^2 - 3 cos(x)^2"); - EXPECT_EQ(Expression("-5sin(x)^2 + 10cos(x)^2").toString(), "-5 sin(x)^2 + 10 cos(x)^2"); - EXPECT_EQ(Expression("-4sin(x)^2 - 6cos(x)^2").toString(), "-4 sin(x)^2 - 6 cos(x)^2"); - EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), "2 + 2 I"); - EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), "(2 + 2 I) sin(x)^2 + (-2 + 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), "(2 + 2 I) sin(x)^2 + (2 - 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), "(-2 - 2 I) cos(2 x)"); - EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), "(-2 + 2 I) sin(x)^2 + (2 + 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), "-2 + 2 I"); - EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), "(2 - 2 I) cos(2 x)"); - EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), "(-2 + 2 I) sin(x)^2 + (-2 - 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), "(2 - 2 I) sin(x)^2 + (2 + 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), "(-2 + 2 I) cos(2 x)"); - EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), "2 - 2 I"); - EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), "(2 - 2 I) sin(x)^2 + (-2 - 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), "(2 + 2 I) cos(2 x)"); - EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), "(-2 - 2 I) sin(x)^2 + (-2 + 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), "(-2 - 2 I) sin(x)^2 + (2 - 2 I) cos(x)^2"); - EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), "-2 - 2 I"); - // TODO: simplify - EXPECT_EQ(Expression("E sin(x)^2 + E cos(x)^2").toString(), "E sin(x)^2 + E cos(x)^2"); - EXPECT_EQ(Expression("E sin(x)^2 - E cos(x)^2").toString(), "E sin(x)^2 - E cos(x)^2"); - EXPECT_EQ(Expression("-E sin(x)^2 + E cos(x)^2").toString(), "-E sin(x)^2 + E cos(x)^2"); - EXPECT_EQ(Expression("-E sin(x)^2 - E cos(x)^2").toString(), "-E sin(x)^2 - E cos(x)^2"); - EXPECT_EQ(Expression("E^2 sin(x)^2 + E cos(x)^2").toString(), "sin(x)^2 E^2 + E cos(x)^2"); - EXPECT_EQ(Expression("E^2 sin(x)^2 - E cos(x)^2").toString(), "sin(x)^2 E^2 - E cos(x)^2"); - EXPECT_EQ(Expression("-E^2 sin(x)^2 + E cos(x)^2").toString(), "-sin(x)^2 E^2 + E cos(x)^2"); - EXPECT_EQ(Expression("-E^2 sin(x)^2 - E cos(x)^2").toString(), "-sin(x)^2 E^2 - E cos(x)^2"); - EXPECT_EQ(Expression("sin(x) * sin(x) + cos(x) * cos(x)").toString(), "1"); - EXPECT_EQ(Expression("(sin(x) + cos(x))^2").toString(), "sin(2 x) + 1"); - EXPECT_EQ(Expression("(sin(x) - cos(x))^2").toString(), "-sin(2 x) + 1"); - EXPECT_EQ(Expression("sin(x)^2 + cos(y)^2").toString(), "sin(x)^2 + cos(y)^2"); - - EXPECT_EQ(Expression("sin(x)^2 + sign(x)^2").toString(), "sin(x)^2 + sign(x)^2"); - EXPECT_EQ(Expression("sin(x)^2 - sign(x)^2").toString(), "sin(x)^2 - sign(x)^2"); - EXPECT_EQ(Expression("cos(x)^2 + sign(x)^2").toString(), "cos(x)^2 + sign(x)^2"); - EXPECT_EQ(Expression("cos(x)^2 - sign(x)^2").toString(), "cos(x)^2 - sign(x)^2"); - EXPECT_EQ(Expression("sign(x)^2 + 1").toString(), "sign(x)^2 + 1"); - EXPECT_EQ(Expression("sign(x)^2 - 1").toString(), "sign(x)^2 - 1"); - - EXPECT_EQ(Expression("tan(x) * cot(x)").toString(), "1"); - EXPECT_EQ(Expression("cot(x) * tan(x)").toString(), "1"); - EXPECT_EQ(Expression("sec(x) * cos(x)").toString(), "1"); - EXPECT_EQ(Expression("cos(x) * sec(x)").toString(), "1"); - EXPECT_EQ(Expression("csc(x) * sin(x)").toString(), "1"); - EXPECT_EQ(Expression("sin(x) * csc(x)").toString(), "1"); - // TODO: implement - // EXPECT_EQ(Expression("tan(x)^5 * cot(x)^5").toString(), "1"); - // EXPECT_EQ(Expression("tan(x)^4 * (sin(x)/cos(x)) * cot(x)^5").toString(), "1"); - - EXPECT_EQ(Expression("sin(-13Pi/6)").toString(), "-1/2"); - EXPECT_EQ(Expression("sin(-2Pi)").toString(), "0"); - EXPECT_EQ(Expression("sin(-11Pi/6)").toString(), "1/2"); - EXPECT_EQ(Expression("sin(-7Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("sin(-5Pi/3)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("sin(-3Pi/2)").toString(), "1"); - EXPECT_EQ(Expression("sin(-4Pi/3)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("sin(-5Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("sin(-7Pi/6)").toString(), "1/2"); - EXPECT_EQ(Expression("sin(-Pi)").toString(), "0"); - EXPECT_EQ(Expression("sin(-5Pi/6)").toString(), "-1/2"); - EXPECT_EQ(Expression("sin(-3Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("sin(-2Pi/3)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("sin(-Pi/2)").toString(), "-1"); - EXPECT_EQ(Expression("sin(-Pi/3)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("sin(-Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("sin(-Pi/6)").toString(), "-1/2"); - EXPECT_EQ(Expression("sin(0)").toString(), "0"); - EXPECT_EQ(Expression("sin(Pi/6)").toString(), "1/2"); - EXPECT_EQ(Expression("sin(Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("sin(Pi/3)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("sin(Pi/2)").toString(), "1"); - EXPECT_EQ(Expression("sin(2Pi/3)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("sin(3Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("sin(5Pi/6)").toString(), "1/2"); - EXPECT_EQ(Expression("sin(Pi)").toString(), "0"); - EXPECT_EQ(Expression("sin(7Pi/6)").toString(), "-1/2"); - EXPECT_EQ(Expression("sin(5Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("sin(4Pi/3)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("sin(3Pi/2)").toString(), "-1"); - EXPECT_EQ(Expression("sin(5Pi/3)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("sin(7Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("sin(11Pi/6)").toString(), "-1/2"); - EXPECT_EQ(Expression("sin(2Pi)").toString(), "0"); - EXPECT_EQ(Expression("sin(13Pi/6)").toString(), "1/2"); - - EXPECT_EQ(Expression("cos(-13Pi/6)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("cos(-2Pi)").toString(), "1"); - EXPECT_EQ(Expression("cos(-11Pi/6)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("cos(-7Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("cos(-5Pi/3)").toString(), "1/2"); - EXPECT_EQ(Expression("cos(-3Pi/2)").toString(), "0"); - EXPECT_EQ(Expression("cos(-4Pi/3)").toString(), "-1/2"); - EXPECT_EQ(Expression("cos(-5Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("cos(-7Pi/6)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("cos(-Pi)").toString(), "-1"); - EXPECT_EQ(Expression("cos(-5Pi/6)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("cos(-3Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("cos(-2Pi/3)").toString(), "-1/2"); - EXPECT_EQ(Expression("cos(-Pi/2)").toString(), "0"); - EXPECT_EQ(Expression("cos(-Pi/3)").toString(), "1/2"); - EXPECT_EQ(Expression("cos(-Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("cos(-Pi/6)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("cos(0)").toString(), "1"); - EXPECT_EQ(Expression("cos(Pi/6)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("cos(Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("cos(Pi/3)").toString(), "1/2"); - EXPECT_EQ(Expression("cos(Pi/2)").toString(), "0"); - EXPECT_EQ(Expression("cos(2Pi/3)").toString(), "-1/2"); - EXPECT_EQ(Expression("cos(3Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("cos(5Pi/6)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("cos(Pi)").toString(), "-1"); - EXPECT_EQ(Expression("cos(7Pi/6)").toString(), "-sqrt(3)/2"); - EXPECT_EQ(Expression("cos(5Pi/4)").toString(), "-sqrt(2)/2"); - EXPECT_EQ(Expression("cos(4Pi/3)").toString(), "-1/2"); - EXPECT_EQ(Expression("cos(3Pi/2)").toString(), "0"); - EXPECT_EQ(Expression("cos(5Pi/3)").toString(), "1/2"); - EXPECT_EQ(Expression("cos(7Pi/4)").toString(), "sqrt(2)/2"); - EXPECT_EQ(Expression("cos(11Pi/6)").toString(), "sqrt(3)/2"); - EXPECT_EQ(Expression("cos(2Pi)").toString(), "1"); - EXPECT_EQ(Expression("cos(13Pi/6)").toString(), "sqrt(3)/2"); - - EXPECT_EQ(Expression("tan(-13Pi/6)").toString(), "-sqrt(3)/3"); - EXPECT_EQ(Expression("tan(-2Pi)").toString(), "0"); - EXPECT_EQ(Expression("tan(-11Pi/6)").toString(), "sqrt(3)/3"); - EXPECT_EQ(Expression("tan(-7Pi/4)").toString(), "1"); - EXPECT_EQ(Expression("tan(-5Pi/3)").toString(), "sqrt(3)"); - EXPECT_EQ(Expression("tan(-3Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("tan(-4Pi/3)").toString(), "-sqrt(3)"); - EXPECT_EQ(Expression("tan(-5Pi/4)").toString(), "-1"); - EXPECT_EQ(Expression("tan(-7Pi/6)").toString(), "-sqrt(3)/3"); - EXPECT_EQ(Expression("tan(-Pi)").toString(), "0"); - EXPECT_EQ(Expression("tan(-5Pi/6)").toString(), "sqrt(3)/3"); - EXPECT_EQ(Expression("tan(-3Pi/4)").toString(), "1"); - EXPECT_EQ(Expression("tan(-2Pi/3)").toString(), "sqrt(3)"); - EXPECT_EQ(Expression("tan(-Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("tan(-Pi/3)").toString(), "-sqrt(3)"); - EXPECT_EQ(Expression("tan(-Pi/4)").toString(), "-1"); - EXPECT_EQ(Expression("tan(-Pi/6)").toString(), "-sqrt(3)/3"); - EXPECT_EQ(Expression("tan(0)").toString(), "0"); - EXPECT_EQ(Expression("tan(Pi/6)").toString(), "sqrt(3)/3"); - EXPECT_EQ(Expression("tan(Pi/4)").toString(), "1"); - EXPECT_EQ(Expression("tan(Pi/3)").toString(), "sqrt(3)"); - EXPECT_EQ(Expression("tan(Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("tan(2Pi/3)").toString(), "-sqrt(3)"); - EXPECT_EQ(Expression("tan(3Pi/4)").toString(), "-1"); - EXPECT_EQ(Expression("tan(5Pi/6)").toString(), "-sqrt(3)/3"); - EXPECT_EQ(Expression("tan(Pi)").toString(), "0"); - EXPECT_EQ(Expression("tan(7Pi/6)").toString(), "sqrt(3)/3"); - EXPECT_EQ(Expression("tan(5Pi/4)").toString(), "1"); - EXPECT_EQ(Expression("tan(4Pi/3)").toString(), "sqrt(3)"); - EXPECT_EQ(Expression("tan(3Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("tan(5Pi/3)").toString(), "-sqrt(3)"); - EXPECT_EQ(Expression("tan(7Pi/4)").toString(), "-1"); - EXPECT_EQ(Expression("tan(11Pi/6)").toString(), "-sqrt(3)/3"); - EXPECT_EQ(Expression("tan(2Pi)").toString(), "0"); - EXPECT_EQ(Expression("tan(13Pi/6)").toString(), "sqrt(3)/3"); - - EXPECT_EQ(Expression("sec(-13Pi/6)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(-2Pi)").toString(), "1"); - EXPECT_EQ(Expression("sec(-11Pi/6)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(-7Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("sec(-5Pi/3)").toString(), "2"); - EXPECT_EQ(Expression("sec(-3Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("sec(-4Pi/3)").toString(), "-2"); - EXPECT_EQ(Expression("sec(-5Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("sec(-7Pi/6)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(-Pi)").toString(), "-1"); - EXPECT_EQ(Expression("sec(-5Pi/6)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(-3Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("sec(-2Pi/3)").toString(), "-2"); - EXPECT_EQ(Expression("sec(-Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("sec(-Pi/3)").toString(), "2"); - EXPECT_EQ(Expression("sec(-Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("sec(-Pi/6)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(0)").toString(), "1"); - EXPECT_EQ(Expression("sec(Pi/6)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("sec(Pi/3)").toString(), "2"); - EXPECT_EQ(Expression("sec(Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("sec(2Pi/3)").toString(), "-2"); - EXPECT_EQ(Expression("sec(3Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("sec(5Pi/6)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(Pi)").toString(), "-1"); - EXPECT_EQ(Expression("sec(7Pi/6)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(5Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("sec(4Pi/3)").toString(), "-2"); - EXPECT_EQ(Expression("sec(3Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("sec(5Pi/3)").toString(), "2"); - EXPECT_EQ(Expression("sec(7Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("sec(11Pi/6)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("sec(2Pi)").toString(), "1"); - EXPECT_EQ(Expression("sec(13Pi/6)").toString(), "(2 sqrt(3))/3"); - - EXPECT_EQ(Expression("csc(-13Pi/6)").toString(), "-2"); - EXPECT_EQ(Expression("csc(-2Pi)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("csc(-11Pi/6)").toString(), "2"); - EXPECT_EQ(Expression("csc(-7Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("csc(-5Pi/3)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(-3Pi/2)").toString(), "1"); - EXPECT_EQ(Expression("csc(-4Pi/3)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(-5Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("csc(-7Pi/6)").toString(), "2"); - EXPECT_EQ(Expression("csc(-Pi)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("csc(-5Pi/6)").toString(), "-2"); - EXPECT_EQ(Expression("csc(-3Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("csc(-2Pi/3)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(-Pi/2)").toString(), "-1"); - EXPECT_EQ(Expression("csc(-Pi/3)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(-Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("csc(-Pi/6)").toString(), "-2"); - EXPECT_EQ(Expression("csc(0)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("csc(Pi/6)").toString(), "2"); - EXPECT_EQ(Expression("csc(Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("csc(Pi/3)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(Pi/2)").toString(), "1"); - EXPECT_EQ(Expression("csc(2Pi/3)").toString(), "(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(3Pi/4)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("csc(5Pi/6)").toString(), "2"); - EXPECT_EQ(Expression("csc(Pi)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("csc(7Pi/6)").toString(), "-2"); - EXPECT_EQ(Expression("csc(5Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("csc(4Pi/3)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(3Pi/2)").toString(), "-1"); - EXPECT_EQ(Expression("csc(5Pi/3)").toString(), "-(2 sqrt(3))/3"); - EXPECT_EQ(Expression("csc(7Pi/4)").toString(), "-sqrt(2)"); - EXPECT_EQ(Expression("csc(11Pi/6)").toString(), "-2"); - EXPECT_EQ(Expression("csc(2Pi)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("csc(13Pi/6)").toString(), "2"); - - EXPECT_EQ(Expression("sin(Pi/7)").toString(), "sin(Pi/7)"); - EXPECT_EQ(Expression("cos(Pi/7)").toString(), "cos(Pi/7)"); - EXPECT_EQ(Expression("tan(Pi/7)").toString(), "tan(Pi/7)"); - EXPECT_EQ(Expression("cot(Pi/7)").toString(), "cot(Pi/7)"); - EXPECT_EQ(Expression("sec(Pi/7)").toString(), "sec(Pi/7)"); - EXPECT_EQ(Expression("csc(Pi/7)").toString(), "csc(Pi/7)"); - - EXPECT_EQ(Expression("sin(E Pi)").toString(), "sin(E Pi)"); - EXPECT_EQ(Expression("cos(E Pi)").toString(), "cos(E Pi)"); - EXPECT_EQ(Expression("tan(E Pi)").toString(), "tan(E Pi)"); - EXPECT_EQ(Expression("cot(E Pi)").toString(), "cot(E Pi)"); - EXPECT_EQ(Expression("sec(E Pi)").toString(), "sec(E Pi)"); - EXPECT_EQ(Expression("csc(E Pi)").toString(), "csc(E Pi)"); - - EXPECT_EQ(Expression("asin(-1)").toString(), "-Pi/2"); - EXPECT_EQ(Expression("asin(-sqrt(3)/2)").toString(), "-Pi/3"); - EXPECT_EQ(Expression("asin(-sqrt(2)/2)").toString(), "-Pi/4"); - EXPECT_EQ(Expression("asin(-1/2)").toString(), "-Pi/6"); - EXPECT_EQ(Expression("asin(0)").toString(), "0"); - EXPECT_EQ(Expression("asin(1/2)").toString(), "Pi/6"); - EXPECT_EQ(Expression("asin(sqrt(2)/2)").toString(), "Pi/4"); - EXPECT_EQ(Expression("asin(sqrt(3)/2)").toString(), "Pi/3"); - EXPECT_EQ(Expression("asin(1)").toString(), "Pi/2"); - - EXPECT_EQ(Expression("acos(-1)").toString(), "Pi"); - EXPECT_EQ(Expression("acos(-sqrt(3)/2)").toString(), "(5 Pi)/6"); - EXPECT_EQ(Expression("acos(-sqrt(2)/2)").toString(), "(3 Pi)/4"); - EXPECT_EQ(Expression("acos(-1/2)").toString(), "(2 Pi)/3"); - EXPECT_EQ(Expression("acos(0)").toString(), "Pi/2"); - EXPECT_EQ(Expression("acos(1/2)").toString(), "Pi/3"); - EXPECT_EQ(Expression("acos(sqrt(2)/2)").toString(), "Pi/4"); - EXPECT_EQ(Expression("acos(sqrt(3)/2)").toString(), "Pi/6"); - EXPECT_EQ(Expression("acos(1)").toString(), "0"); - - EXPECT_EQ(Expression("atan(-sqrt(3))").toString(), "-Pi/3"); - EXPECT_EQ(Expression("atan(-1)").toString(), "-Pi/4"); - EXPECT_EQ(Expression("atan(-sqrt(3)/3)").toString(), "-Pi/6"); - EXPECT_EQ(Expression("atan(0)").toString(), "0"); - EXPECT_EQ(Expression("atan(sqrt(3)/3)").toString(), "Pi/6"); - EXPECT_EQ(Expression("atan(1)").toString(), "Pi/4"); - EXPECT_EQ(Expression("atan(sqrt(3))").toString(), "Pi/3"); - - EXPECT_EQ(Expression("acot(-sqrt(3))").toString(), "-Pi/6"); - EXPECT_EQ(Expression("acot(-1)").toString(), "-Pi/4"); - EXPECT_EQ(Expression("acot(-sqrt(3)/3)").toString(), "-Pi/3"); - EXPECT_EQ(Expression("acot(0)").toString(), "Pi/2"); - EXPECT_EQ(Expression("acot(sqrt(3)/3)").toString(), "Pi/3"); - EXPECT_EQ(Expression("acot(1)").toString(), "Pi/4"); - EXPECT_EQ(Expression("acot(sqrt(3))").toString(), "Pi/6"); - - EXPECT_EQ(Expression("asec(-1)").toString(), "Pi"); - EXPECT_EQ(Expression("asec(-2/sqrt(3))").toString(), "(5 Pi)/6"); - EXPECT_EQ(Expression("asec(-2/sqrt(2))").toString(), "(3 Pi)/4"); - EXPECT_EQ(Expression("asec(-2)").toString(), "(2 Pi)/3"); - EXPECT_EQ(Expression("asec(0)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("asec(2)").toString(), "Pi/3"); - EXPECT_EQ(Expression("asec(2/sqrt(2))").toString(), "Pi/4"); - EXPECT_EQ(Expression("asec(2/sqrt(3))").toString(), "Pi/6"); - EXPECT_EQ(Expression("asec(1)").toString(), "0"); - - EXPECT_EQ(Expression("acsc(-1)").toString(), "-Pi/2"); - EXPECT_EQ(Expression("acsc(-2/sqrt(3))").toString(), "-Pi/3"); - EXPECT_EQ(Expression("acsc(-2/sqrt(2))").toString(), "-Pi/4"); - EXPECT_EQ(Expression("acsc(-2)").toString(), "-Pi/6"); - EXPECT_EQ(Expression("acsc(0)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("acsc(2)").toString(), "Pi/6"); - EXPECT_EQ(Expression("acsc(2/sqrt(2))").toString(), "Pi/4"); - EXPECT_EQ(Expression("acsc(2/sqrt(3))").toString(), "Pi/3"); - EXPECT_EQ(Expression("acsc(1)").toString(), "Pi/2"); - - EXPECT_EQ(Expression("asin(sqrt(5)/10)").toString(), "asin(sqrt(5)/10)"); - EXPECT_EQ(Expression("acos(sqrt(5)/10)").toString(), "acos(sqrt(5)/10)"); - EXPECT_EQ(Expression("atan(sqrt(5)/10)").toString(), "atan(sqrt(5)/10)"); - EXPECT_EQ(Expression("acot(sqrt(5)/10)").toString(), "acot(sqrt(5)/10)"); - EXPECT_EQ(Expression("asec(sqrt(5)/10)").toString(), "asec(sqrt(5)/10)"); - EXPECT_EQ(Expression("acsc(sqrt(5)/10)").toString(), "acsc(sqrt(5)/10)"); - - EXPECT_EQ(Expression("asin(x)").toString(), "asin(x)"); - EXPECT_EQ(Expression("acos(x)").toString(), "acos(x)"); - EXPECT_EQ(Expression("atan(x)").toString(), "atan(x)"); - EXPECT_EQ(Expression("acot(x)").toString(), "acot(x)"); - EXPECT_EQ(Expression("asec(x)").toString(), "asec(x)"); - EXPECT_EQ(Expression("acsc(x)").toString(), "acsc(x)"); - - EXPECT_EQ(Expression("asin(sqrt(x))").toString(), "asin(sqrt(x))"); - EXPECT_EQ(Expression("acos(sqrt(x))").toString(), "acos(sqrt(x))"); - EXPECT_EQ(Expression("atan(sqrt(x))").toString(), "atan(sqrt(x))"); - EXPECT_EQ(Expression("acot(sqrt(x))").toString(), "acot(sqrt(x))"); - EXPECT_EQ(Expression("asec(sqrt(x))").toString(), "asec(sqrt(x))"); - EXPECT_EQ(Expression("acsc(sqrt(x))").toString(), "acsc(sqrt(x))"); - - EXPECT_EQ(Expression("asin(sqrt(x)/2)").toString(), "asin(sqrt(x)/2)"); - EXPECT_EQ(Expression("acos(sqrt(x)/2)").toString(), "acos(sqrt(x)/2)"); - EXPECT_EQ(Expression("atan(sqrt(x)/2)").toString(), "atan(sqrt(x)/2)"); - EXPECT_EQ(Expression("asec(sqrt(x)/2)").toString(), "asec(sqrt(x)/2)"); - EXPECT_EQ(Expression("acsc(sqrt(x)/2)").toString(), "acsc(sqrt(x)/2)"); - - EXPECT_EQ(Expression("asin(-x)").toString(), "asin(-x)"); - EXPECT_EQ(Expression("acos(-x)").toString(), "acos(-x)"); - EXPECT_EQ(Expression("atan(-x)").toString(), "atan(-x)"); - EXPECT_EQ(Expression("acot(-x)").toString(), "acot(-x)"); - EXPECT_EQ(Expression("asec(-x)").toString(), "asec(-x)"); - EXPECT_EQ(Expression("acsc(-x)").toString(), "acsc(-x)"); - - EXPECT_EQ(Expression("asin(-sqrt(x))").toString(), "asin(-sqrt(x))"); - EXPECT_EQ(Expression("acos(-sqrt(x))").toString(), "acos(-sqrt(x))"); - EXPECT_EQ(Expression("atan(-sqrt(x))").toString(), "atan(-sqrt(x))"); - EXPECT_EQ(Expression("acot(-sqrt(x))").toString(), "acot(-sqrt(x))"); - EXPECT_EQ(Expression("asec(-sqrt(x))").toString(), "asec(-sqrt(x))"); - EXPECT_EQ(Expression("acsc(-sqrt(x))").toString(), "acsc(-sqrt(x))"); - - EXPECT_EQ(Expression("asin(-sqrt(x)/2)").toString(), "asin(-sqrt(x)/2)"); - EXPECT_EQ(Expression("acos(-sqrt(x)/2)").toString(), "acos(-sqrt(x)/2)"); - EXPECT_EQ(Expression("atan(-sqrt(x)/2)").toString(), "atan(-sqrt(x)/2)"); - EXPECT_EQ(Expression("acot(-sqrt(x)/2)").toString(), "acot(-sqrt(x)/2)"); - EXPECT_EQ(Expression("asec(-sqrt(x)/2)").toString(), "asec(-sqrt(x)/2)"); - EXPECT_EQ(Expression("acsc(-sqrt(x)/2)").toString(), "acsc(-sqrt(x)/2)"); - - EXPECT_EQ(Expression("sinh(-x)").toString(), "-sinh(x)"); - EXPECT_EQ(Expression("cosh(-x)").toString(), "cosh(x)"); - EXPECT_EQ(Expression("tanh(-x)").toString(), "-tanh(x)"); - EXPECT_EQ(Expression("coth(-x)").toString(), "-coth(x)"); - EXPECT_EQ(Expression("sech(-x)").toString(), "sech(x)"); - EXPECT_EQ(Expression("csch(-x)").toString(), "-csch(x)"); - - EXPECT_EQ(Expression("sinh(asinh(x))").toString(), "x"); - EXPECT_EQ(Expression("cosh(acosh(x))").toString(), "x"); - EXPECT_EQ(Expression("tanh(atanh(x))").toString(), "x"); - EXPECT_EQ(Expression("coth(acoth(x))").toString(), "x"); - EXPECT_EQ(Expression("sech(asech(x))").toString(), "x"); - EXPECT_EQ(Expression("csch(acsch(x))").toString(), "x"); - EXPECT_EQ(Expression("asinh(sinh(x))").toString(), "asinh(sinh(x))"); - EXPECT_EQ(Expression("acosh(cosh(x))").toString(), "acosh(cosh(x))"); - EXPECT_EQ(Expression("atanh(tanh(x))").toString(), "atanh(tanh(x))"); - EXPECT_EQ(Expression("acoth(coth(x))").toString(), "acoth(coth(x))"); - EXPECT_EQ(Expression("asech(sech(x))").toString(), "asech(sech(x))"); - EXPECT_EQ(Expression("acsch(csch(x))").toString(), "acsch(csch(x))"); - - EXPECT_EQ(Expression("sinh(x)/cosh(x)").toString(), "tanh(x)"); - EXPECT_EQ(Expression("(-2sinh(x))/cosh(x)").toString(), "-2 tanh(x)"); - EXPECT_EQ(Expression("(2sinh(x))/(3cosh(x))").toString(), "(2 tanh(x))/3"); - EXPECT_EQ(Expression("sinh(x)^2/cosh(x)").toString(), "sinh(x)^2 sech(x)"); - EXPECT_EQ(Expression("sinh(x)/cosh(x)^2").toString(), "sech(x)^2 sinh(x)"); - EXPECT_EQ(Expression("sinh(x)^2/cosh(x)^2").toString(), "tanh(x)^2"); - EXPECT_EQ(Expression("(2sinh(x))^2/cosh(x)^2").toString(), "4 tanh(x)^2"); - EXPECT_EQ(Expression("(2sinh(x))^2/(3cosh(x))^2").toString(), "(4 tanh(x)^2)/9"); - - EXPECT_EQ(Expression("cosh(x)/sinh(x)").toString(), "coth(x)"); - EXPECT_EQ(Expression("(-2cosh(x))/sinh(x)").toString(), "-2 coth(x)"); - EXPECT_EQ(Expression("(2cosh(x))/(3sinh(x))").toString(), "(2 coth(x))/3"); - EXPECT_EQ(Expression("cosh(x)^2/sinh(x)").toString(), "cosh(x)^2 csch(x)"); - EXPECT_EQ(Expression("cosh(x)/sinh(x)^2").toString(), "csch(x)^2 cosh(x)"); - EXPECT_EQ(Expression("cosh(x)^2/sinh(x)^2").toString(), "coth(x)^2"); - EXPECT_EQ(Expression("(2cosh(x))^2/sinh(x)^2").toString(), "4 coth(x)^2"); - EXPECT_EQ(Expression("(2cosh(x))^2/(3sinh(x))^2").toString(), "(4 coth(x)^2)/9"); - - EXPECT_EQ(Expression("sech(x)/csch(x)").toString(), "tanh(x)"); - EXPECT_EQ(Expression("csch(x)/sech(x)").toString(), "coth(x)"); - EXPECT_EQ(Expression("sech(x)*coth(x)").toString(), "csch(x)"); - EXPECT_EQ(Expression("csch(x)*tanh(x)").toString(), "sech(x)"); - - EXPECT_EQ(Expression("tanh(x) * coth(x)").toString(), "1"); - EXPECT_EQ(Expression("coth(x) * tanh(x)").toString(), "1"); - // TODO: implement - // EXPECT_EQ(Expression("cosh(x)^2 - sinh(x)^2").toString(), "1"); - - EXPECT_EQ(Expression("(1 + 2I) + (2 + 3I)").toString(), "3 + 5 I"); - EXPECT_EQ(Expression("(1 + 2I) - (2 + 3I)").toString(), "-1 - I"); - EXPECT_EQ(Expression("(1 + 2I) * (2 + 3I)").toString(), "-4 + 7 I"); - EXPECT_EQ(Expression("(1 + 2I) / (2 + 3I)").toString(), "8/13 + 1/13 I"); - EXPECT_EQ(Expression("-(2 + 3I)").toString(), "-2 - 3 I"); - EXPECT_EQ(Expression("+(2 + 3I)").toString(), "2 + 3 I"); - - EXPECT_EQ(Expression("(-5 + 2I)^0").toString(), "1"); - EXPECT_EQ(Expression("(-5 + 2I)^1").toString(), "-5 + 2 I"); - EXPECT_EQ(Expression("(-5 + 2I)^2").toString(), "21 - 20 I"); - EXPECT_EQ(Expression("(-5 + 2I)^3").toString(), "-65 + 142 I"); - EXPECT_EQ(Expression("(-5 + 2I)^4").toString(), "41 - 840 I"); - EXPECT_EQ(Expression("(-5 + 2I)^5").toString(), "1475 + 4282 I"); - EXPECT_EQ(Expression("(-5 + 2I)^6").toString(), "-15939 - 18460 I"); - EXPECT_EQ(Expression("(-5 + 2I)^7").toString(), "116615 + 60422 I"); - EXPECT_EQ(Expression("(-5 + 2I)^8").toString(), "-703919 - 68880 I"); - EXPECT_EQ(Expression("(-5 + 2I)^32").toString(), "231439382100320515840321 + 95179357018581597343680 I"); - EXPECT_EQ(Expression("(-5 + 2I)^-1").toString(), "-5/29 - 2/29 I"); - EXPECT_EQ(Expression("(-5 + 2I)^-5").toString(), "1475/20511149 - 4282/20511149 I"); - EXPECT_EQ(Expression("(-5 + 2I)^-6").toString(), "-15939/594823321 + 18460/594823321 I"); - EXPECT_EQ(Expression("(-5 + 2I)^-32").toString(), "231439382100320515840321/62623297589448778360828428329074752308805325441 - 95179357018581597343680/62623297589448778360828428329074752308805325441 I"); - - EXPECT_EQ(Expression("sqrt(-1)").toString(), "I"); - EXPECT_EQ(Expression("sqrt(-4) - 5").toString(), "-5 + 2 I"); - // TODO: implement - EXPECT_EQ(Expression("root(-1, 3)").toString(), "root(-1, 3)"); - EXPECT_EQ(Expression("root(-1, 4)").toString(), "root(-1, 4)"); - EXPECT_EQ(Expression("root(-1, 5)").toString(), "root(-1, 5)"); - EXPECT_EQ(Expression("root(-1, 6)").toString(), "root(-1, 6)"); - EXPECT_EQ(Expression("root(-1, 7)").toString(), "root(-1, 7)"); - EXPECT_EQ(Expression("(-1)^(3/2)").toString(), "(-1)^(3/2)"); - EXPECT_EQ(Expression("(-1)^(2/3)").toString(), "(-1)^(2/3)"); - EXPECT_EQ(Expression("(-1)^(3/4)").toString(), "(-1)^(3/4)"); - EXPECT_EQ(Expression("(-1)^(4/5)").toString(), "(-1)^(4/5)"); - EXPECT_EQ(Expression("(-1)^(5/6)").toString(), "(-1)^(5/6)"); - EXPECT_EQ(Expression("(-1)^(6/7)").toString(), "(-1)^(6/7)"); - EXPECT_EQ(Expression("sqrt(-3) sqrt(-3)").toString(), "-3"); - EXPECT_EQ(Expression("sqrt(-3) sqrt(-2)").toString(), "-sqrt(6)"); - EXPECT_EQ(Expression("sqrt(i+1) sqrt(i+1)").toString(), "i + 1"); - EXPECT_EQ(Expression("sqrt(i+1) sqrt(i)").toString(), "sqrt(i + 1) sqrt(i)"); - EXPECT_EQ(Expression("root(-3, 3) root(-3, 3)").toString(), "(-3)^(2/3)"); - EXPECT_EQ(Expression("root(-3, 3) root(-2, 3)").toString(), "root(-2, 3) root(-3, 3)"); - EXPECT_EQ(Expression("root(i+1, 3) root(i+1, 3)").toString(), "(i + 1)^(2/3)"); - EXPECT_EQ(Expression("root(i+1, 3) root(i, 3)").toString(), "root(i + 1, 3) root(i, 3)"); - - // TODO: implement - EXPECT_EQ(Expression("ln(-1)").toString(), "ln(-1)"); - EXPECT_EQ(Expression("lb(-1)").toString(), "log(2, -1)"); - EXPECT_EQ(Expression("lg(-1)").toString(), "log(10, -1)"); - - // TODO: implement - EXPECT_EQ(Expression("asin(2)").toString(), "asin(2)"); - EXPECT_EQ(Expression("acos(2)").toString(), "acos(2)"); - - EXPECT_EQ(Expression("abs(I)").toString(), "1"); - EXPECT_EQ(Expression("abs(I + 1)").toString(), "sqrt(2)"); - EXPECT_EQ(Expression("abs(3I + 2)").toString(), "sqrt(13)"); - - EXPECT_EQ(Expression("sign(I)").toString(), "I"); - EXPECT_EQ(Expression("sign(I + 1)").toString(), "((1 + I) sqrt(2))/2"); - EXPECT_EQ(Expression("sign(3I + 2)").toString(), "((2 + 3 I) sqrt(13))/13"); - - // TODO: implement - EXPECT_EQ(Expression("sin(I + 1)").toString(), "sin(1 + I)"); - EXPECT_EQ(Expression("cos(I + 1)").toString(), "cos(1 + I)"); - EXPECT_EQ(Expression("tan(I + 1)").toString(), "tan(1 + I)"); - EXPECT_EQ(Expression("cot(I + 1)").toString(), "cot(1 + I)"); - EXPECT_EQ(Expression("sec(I + 1)").toString(), "sec(1 + I)"); - EXPECT_EQ(Expression("csc(I + 1)").toString(), "csc(1 + I)"); - EXPECT_EQ(Expression("asin(I + 1)").toString(), "asin(1 + I)"); - EXPECT_EQ(Expression("acos(I + 1)").toString(), "acos(1 + I)"); - EXPECT_EQ(Expression("atan(I + 1)").toString(), "atan(1 + I)"); - EXPECT_EQ(Expression("acot(I + 1)").toString(), "acot(1 + I)"); - EXPECT_EQ(Expression("asec(I + 1)").toString(), "asec(1 + I)"); - EXPECT_EQ(Expression("acsc(I + 1)").toString(), "acsc(1 + I)"); - EXPECT_EQ(Expression("sinh(I + 1)").toString(), "sinh(1 + I)"); - EXPECT_EQ(Expression("cosh(I + 1)").toString(), "cosh(1 + I)"); - EXPECT_EQ(Expression("tanh(I + 1)").toString(), "tanh(1 + I)"); - EXPECT_EQ(Expression("coth(I + 1)").toString(), "coth(1 + I)"); - EXPECT_EQ(Expression("sech(I + 1)").toString(), "sech(1 + I)"); - EXPECT_EQ(Expression("csch(I + 1)").toString(), "csch(1 + I)"); - EXPECT_EQ(Expression("asinh(I + 1)").toString(), "asinh(1 + I)"); - EXPECT_EQ(Expression("acosh(I + 1)").toString(), "acosh(1 + I)"); - EXPECT_EQ(Expression("atanh(I + 1)").toString(), "atanh(1 + I)"); - EXPECT_EQ(Expression("acoth(I + 1)").toString(), "acoth(1 + I)"); - EXPECT_EQ(Expression("asech(I + 1)").toString(), "asech(1 + I)"); - EXPECT_EQ(Expression("acsch(I + 1)").toString(), "acsch(1 + I)"); - - EXPECT_EQ(Expression("sqrt(3) (2/3 + 1/2 I)").toString(), "((4 + 3 I) sqrt(3))/6"); - EXPECT_EQ(Expression("I / x").toString(), "I/x"); - EXPECT_EQ(Expression("-I / x").toString(), "-I/x"); - EXPECT_EQ(Expression("2I / x").toString(), "(2 I)/x"); - EXPECT_EQ(Expression("-2I / x").toString(), "-(2 I)/x"); - EXPECT_EQ(Expression("(5/6 I) x").toString(), "(5 I x)/6"); - EXPECT_EQ(Expression("(5/6 I + 2/7) x").toString(), "((12 + 35 I) x)/42"); - EXPECT_EQ(Expression("(5/6 I + 2) x").toString(), "((12 + 5 I) x)/6"); - EXPECT_EQ(Expression("(5 I + 2/7) x").toString(), "((2 + 35 I) x)/7"); - EXPECT_EQ(Expression("(5/6 I) / x").toString(), "(5 I)/(6 x)"); - EXPECT_EQ(Expression("(5/6 I + 2/7) / x").toString(), "(12 + 35 I)/(42 x)"); - EXPECT_EQ(Expression("(5/6 I + 2) / x").toString(), "(12 + 5 I)/(6 x)"); - EXPECT_EQ(Expression("(5 I + 2/7) / x").toString(), "(2 + 35 I)/(7 x)"); - EXPECT_EQ(Expression("x / (5/6 I)").toString(), "-(6 I x)/5"); - EXPECT_EQ(Expression("x / (5/6 I + 2/7)").toString(), "((504 - 1470 I) x)/1369"); - EXPECT_EQ(Expression("x / (5/6 I + 2)").toString(), "((72 - 30 I) x)/169"); - EXPECT_EQ(Expression("x / (5 I + 2/7)").toString(), "((14 - 245 I) x)/1229"); - - EXPECT_EQ(Expression("I = I").toString(), "True"); - EXPECT_EQ(Expression("I = 2 I").toString(), "False"); - EXPECT_EQ(Expression("I = I x").toString(), "x - 1 = 0"); - EXPECT_EQ(Expression("I x = I").toString(), "x - 1 = 0"); - - EXPECT_EQ(Expression("I != I").toString(), "False"); - EXPECT_EQ(Expression("I != 2 I").toString(), "True"); - EXPECT_EQ(Expression("I != I x").toString(), "x - 1 != 0"); - EXPECT_EQ(Expression("I x != I").toString(), "x - 1 != 0"); - - EXPECT_EQ(Expression("I < I").toString(), "I < I"); - EXPECT_EQ(Expression("I < 2 I").toString(), "I < 2 I"); - EXPECT_EQ(Expression("I < I x").toString(), "I < I x"); - EXPECT_EQ(Expression("I x < I").toString(), "I x < I"); - - EXPECT_EQ(Expression("I > I").toString(), "I > I"); - EXPECT_EQ(Expression("I > 2 I").toString(), "I > 2 I"); - EXPECT_EQ(Expression("I x > I").toString(), "I x > I"); - - EXPECT_EQ(Expression("I <= I").toString(), "I <= I"); - EXPECT_EQ(Expression("I <= 2 I").toString(), "I <= 2 I"); - EXPECT_EQ(Expression("I <= I x").toString(), "I <= I x"); - EXPECT_EQ(Expression("I x <= I").toString(), "I x <= I"); - - EXPECT_EQ(Expression("I >= I").toString(), "I >= I"); - EXPECT_EQ(Expression("I >= 2 I").toString(), "I >= 2 I"); - EXPECT_EQ(Expression("I >= I x").toString(), "I >= I x"); - EXPECT_EQ(Expression("I x >= I").toString(), "I x >= I"); - - EXPECT_EQ(Expression("2 I = E").toString(), "False"); - EXPECT_EQ(Expression("2 I > E").toString(), "2 I > E"); - EXPECT_EQ(Expression("E = 2 I").toString(), "False"); - EXPECT_EQ(Expression("E > 2 I").toString(), "E > 2 I"); - EXPECT_EQ(Expression("2 I + 3 = 0").toString(), "False"); - EXPECT_EQ(Expression("2 I + E > 0").toString(), "E + 2 I > 0"); - - EXPECT_EQ(Expression("I! > 0").toString(), "I! > 0"); - EXPECT_EQ(Expression("Inf mod 2 > 0").toString(), "Inf mod 2 > 0"); - EXPECT_EQ(Expression("Inf! - 1 = 0").toString(), "Inf! - 1 = 0"); - EXPECT_EQ(Expression("Inf - 1 > 0").toString(), "Inf > 0"); - EXPECT_EQ(Expression("Pi!! - Pi > 0").toString(), "Pi!! - Pi > 0"); - - EXPECT_EQ(Expression("Inf").toString(), "Inf"); - EXPECT_EQ(Expression("-Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("ComplexInf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("-ComplexInf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("1/0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("a/0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("1/Inf").toString(), "0"); - EXPECT_EQ(Expression("1/-Inf").toString(), "0"); - EXPECT_EQ(Expression("a/Inf").toString(), "0"); - EXPECT_EQ(Expression("a/-Inf").toString(), "0"); - EXPECT_EQ(Expression("1/ComplexInf").toString(), "0"); - EXPECT_EQ(Expression("a/ComplexInf").toString(), "0"); - EXPECT_EQ(Expression("0/Inf").toString(), "0"); - EXPECT_EQ(Expression("Inf/0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("0/-Inf").toString(), "0"); - EXPECT_EQ(Expression("-Inf/0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("0/ComplexInf").toString(), "0"); - EXPECT_EQ(Expression("ComplexInf/0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("0 / (Inf x)").toString(), "0"); - EXPECT_EQ(Expression("(Inf/x) / 0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("1/Inf - 1").toString(), "-1"); - EXPECT_EQ(Expression("Inf/2 - 1").toString(), "Inf"); - EXPECT_EQ(Expression("Inf + Inf").toString(), "Inf"); - EXPECT_EQ(Expression("-Inf - Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("10 + Inf").toString(), "Inf"); - EXPECT_EQ(Expression("-10 + Inf").toString(), "Inf"); - EXPECT_EQ(Expression("10 - Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("-10 - Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("I + Inf").toString(), "Inf"); - EXPECT_EQ(Expression("I - Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("I + ComplexInf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("a + Inf").toString(), "Inf"); - EXPECT_EQ(Expression("-a - Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("a + ComplexInf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("a - ComplexInf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("10 * Inf").toString(), "Inf"); - EXPECT_EQ(Expression("-10 * Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("-2/3 * Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("(I+2) * Inf").toString(), "(2 + I) Inf"); - EXPECT_EQ(Expression("(I+2) * -Inf").toString(), "(-2 - I) Inf"); - EXPECT_EQ(Expression("(I+2) * ComplexInf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("Inf * Inf").toString(), "Inf"); - EXPECT_EQ(Expression("Inf * -Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("-Inf * -Inf").toString(), "Inf"); - EXPECT_EQ(Expression("ComplexInf*ComplexInf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf*Inf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf*-Inf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("a * Inf").toString(), "Inf a"); - EXPECT_EQ(Expression("Inf * (Inf x)").toString(), "Inf x"); - EXPECT_EQ(Expression("Inf * (Inf/x)").toString(), "Inf/x"); - EXPECT_EQ(Expression("Inf / a").toString(), "Inf/a"); - EXPECT_EQ(Expression("Inf / 2").toString(), "Inf"); - EXPECT_EQ(Expression("Inf / -2").toString(), "-Inf"); - EXPECT_EQ(Expression("Inf / I").toString(), "-I Inf"); - EXPECT_EQ(Expression("Inf / (-I - 3)").toString(), "-((3 - I) Inf)/10"); - EXPECT_EQ(Expression("Inf^2").toString(), "Inf"); - EXPECT_EQ(Expression("Inf^(2/3)").toString(), "Inf"); - EXPECT_EQ(Expression("Inf^-2").toString(), "0"); - EXPECT_EQ(Expression("Inf^(-2/3)").toString(), "0"); - EXPECT_EQ(Expression("(-Inf)^2").toString(), "Inf"); - EXPECT_EQ(Expression("(-Inf)^3").toString(), "-Inf"); - EXPECT_EQ(Expression("(-Inf)^(2/3)").toString(), "Inf sign((-1)^(2/3))"); - EXPECT_EQ(Expression("ComplexInf^2").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf^(2/3)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf^-2").toString(), "0"); - EXPECT_EQ(Expression("ComplexInf^(-2/3)").toString(), "0"); - EXPECT_EQ(Expression("Inf^(I+2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("Inf^(I-2)").toString(), "0"); - EXPECT_EQ(Expression("Inf^(-I+2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("Inf^(-I-2)").toString(), "0"); - EXPECT_EQ(Expression("(-Inf)^(I+2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("(-Inf)^(I-2)").toString(), "0"); - EXPECT_EQ(Expression("(-Inf)^(-I+2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("(-Inf)^(-I-2)").toString(), "0"); - EXPECT_EQ(Expression("ComplexInf^(I+2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf^(I-2)").toString(), "0"); - EXPECT_EQ(Expression("ComplexInf^(-I+2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf^(-I-2)").toString(), "0"); - EXPECT_EQ(Expression("0^Inf").toString(), "0"); - EXPECT_EQ(Expression("0^-Inf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("0^-1").toString(), "ComplexInf"); - EXPECT_EQ(Expression("2^Inf").toString(), "Inf"); - EXPECT_EQ(Expression("2^-Inf").toString(), "0"); - EXPECT_EQ(Expression("0.2^Inf").toString(), "0"); - EXPECT_EQ(Expression("0.2^-Inf").toString(), "Inf"); - EXPECT_EQ(Expression("Inf^Inf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("(-Inf)^Inf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf^Inf").toString(), "ComplexInf"); - EXPECT_EQ(Expression("0^(Inf/x)").toString(), "0^(Inf/x)"); - EXPECT_EQ(Expression("1^(Inf/x)").toString(), "1^(Inf/x)"); - EXPECT_EQ(Expression("sqrt(2) * Inf").toString(), "Inf"); - EXPECT_EQ(Expression("-sqrt(2) * Inf").toString(), "-Inf"); - EXPECT_EQ(Expression("sqrt(2) ^ Inf").toString(), "Inf"); - EXPECT_EQ(Expression("sqrt(0.5) ^ Inf").toString(), "0"); - EXPECT_EQ(Expression("sqrt(2) ^ (-Inf)").toString(), "0"); - EXPECT_EQ(Expression("sqrt(0.5) ^ (-Inf)").toString(), "Inf"); - EXPECT_EQ(Expression("Inf ^ sqrt(5)").toString(), "Inf"); - EXPECT_EQ(Expression("Inf ^ -sqrt(5)").toString(), "0"); - EXPECT_EQ(Expression("(-Inf) ^ sqrt(5)").toString(), "Inf sign((-1)^sqrt(5))"); - EXPECT_EQ(Expression("(-Inf) ^ -sqrt(5)").toString(), "0"); - EXPECT_EQ(Expression("ComplexInf ^ sqrt(5)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("ComplexInf ^ -sqrt(5)").toString(), "0"); - EXPECT_EQ(Expression("sin(Inf)").toString(), "sin(Inf)"); // TODO: [-1, 1] - EXPECT_EQ(Expression("log(1, 0)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("log(1, 10)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("log(10, 0)").toString(), "-Inf"); - EXPECT_EQ(Expression("log(1/10, 0)").toString(), "Inf"); - EXPECT_EQ(Expression("ln(0)").toString(), "-Inf"); - EXPECT_EQ(Expression("ln(Inf)").toString(), "Inf"); - EXPECT_EQ(Expression("ln(-Inf)").toString(), "Inf"); - EXPECT_EQ(Expression("ln(ComplexInf)").toString(), "Inf"); - EXPECT_EQ(Expression("(-1)!").toString(), "ComplexInf"); - EXPECT_EQ(Expression("tan(Pi/2)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("tan(3/2*Pi)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("cot(0)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("cot(2*Pi)").toString(), "ComplexInf"); - EXPECT_EQ(Expression("sin(Inf)^2 + cos(Inf)^2").toString(), "sin(Inf)^2 + cos(Inf)^2"); - EXPECT_EQ(Expression("sin(Inf) cos(Inf)").toString(), "sin(Inf) cos(Inf)"); - EXPECT_EQ(Expression("tan(Inf)").toString(), "tan(Inf)"); - EXPECT_EQ(Expression("tan(Inf) * cot(Inf)").toString(), "tan(Inf) cot(Inf)"); - EXPECT_EQ(Expression("sign(Inf)").toString(), "1"); - EXPECT_EQ(Expression("sign(-Inf)").toString(), "-1"); - EXPECT_EQ(Expression("abs(Inf)").toString(), "Inf"); - EXPECT_EQ(Expression("abs(-Inf)").toString(), "Inf"); - EXPECT_EQ(Expression("abs(ComplexInf)").toString(), "Inf"); - EXPECT_EQ(Expression("0/sign(Inf)").toString(), "0"); - EXPECT_EQ(Expression("sign(Inf)/0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("0^sign(Inf)").toString(), "0"); - EXPECT_EQ(Expression("sign(Inf)^0").toString(), "1"); - EXPECT_EQ(Expression("0 (Inf!)").toString(), "0 Inf!"); - EXPECT_EQ(Expression("0/(Inf!)").toString(), "0"); - EXPECT_EQ(Expression("(Inf!)/0").toString(), "ComplexInf"); - EXPECT_EQ(Expression("0^(Inf!)").toString(), "0^(Inf!)"); - EXPECT_EQ(Expression("(Inf!)^0").toString(), "(Inf!)^0"); - EXPECT_EQ(Expression("log((Inf!), (Inf!))").toString(), "log(Inf!, Inf!)"); - EXPECT_EQ(Expression("log((Inf!), Inf)").toString(), "log(Inf!, Inf)"); - EXPECT_EQ(Expression("log(Inf, (Inf!))").toString(), "log(Inf, Inf!)"); - EXPECT_EQ(Expression("log((Inf!), 1)").toString(), "log(Inf!, 1)"); - EXPECT_EQ(Expression("log(1, (Inf!))").toString(), "log(1, Inf!)"); - EXPECT_EQ(Expression("Inf = Inf").toString(), "True"); - EXPECT_EQ(Expression("Inf = -Inf").toString(), "False"); - EXPECT_EQ(Expression("-Inf = Inf").toString(), "False"); - EXPECT_EQ(Expression("-Inf = -Inf").toString(), "True"); - EXPECT_EQ(Expression("x = Inf").toString(), "False"); - EXPECT_EQ(Expression("x = -Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf = x").toString(), "False"); - EXPECT_EQ(Expression("-Inf = x").toString(), "False"); - EXPECT_EQ(Expression("x != Inf").toString(), "True"); - EXPECT_EQ(Expression("x != -Inf").toString(), "True"); - EXPECT_EQ(Expression("Inf != x").toString(), "True"); - EXPECT_EQ(Expression("-Inf != x").toString(), "True"); - EXPECT_EQ(Expression("x > Inf").toString(), "x > Inf"); - EXPECT_EQ(Expression("x < Inf").toString(), "x < Inf"); - EXPECT_EQ(Expression("x <= Inf").toString(), "x <= Inf"); - EXPECT_EQ(Expression("x >= Inf").toString(), "x >= Inf"); - EXPECT_EQ(Expression("x > -Inf").toString(), "x > -Inf"); - EXPECT_EQ(Expression("x < -Inf").toString(), "x < -Inf"); - EXPECT_EQ(Expression("x <= -Inf").toString(), "x <= -Inf"); - EXPECT_EQ(Expression("x >= -Inf").toString(), "x >= -Inf"); - EXPECT_EQ(Expression("Inf > x").toString(), "Inf > x"); - EXPECT_EQ(Expression("Inf < x").toString(), "Inf < x"); - EXPECT_EQ(Expression("Inf <= x").toString(), "Inf <= x"); - EXPECT_EQ(Expression("Inf >= x").toString(), "Inf >= x"); - EXPECT_EQ(Expression("-Inf > x").toString(), "-Inf > x"); - EXPECT_EQ(Expression("-Inf < x").toString(), "-Inf < x"); - EXPECT_EQ(Expression("-Inf <= x").toString(), "-Inf <= x"); - EXPECT_EQ(Expression("-Inf >= x").toString(), "-Inf >= x"); - EXPECT_EQ(Expression("x Inf = Inf").toString(), "Inf x = Inf"); - EXPECT_EQ(Expression("Inf = x Inf").toString(), "Inf = Inf x"); - EXPECT_EQ(Expression("x Inf < Inf").toString(), "Inf x < Inf"); - EXPECT_EQ(Expression("Inf < x Inf").toString(), "Inf < Inf x"); - EXPECT_EQ(Expression("x Inf = 0").toString(), "Inf x = 0"); - EXPECT_EQ(Expression("0 = x Inf").toString(), "0 = Inf x"); - EXPECT_EQ(Expression("x Inf < 0").toString(), "Inf x < 0"); - EXPECT_EQ(Expression("0 < x Inf").toString(), "0 < Inf x"); - EXPECT_EQ(Expression("x = ComplexInf").toString(), "False"); - EXPECT_EQ(Expression("x != ComplexInf").toString(), "True"); - EXPECT_EQ(Expression("x < ComplexInf").toString(), "x < ComplexInf"); - EXPECT_EQ(Expression("x > ComplexInf").toString(), "x > ComplexInf"); - EXPECT_EQ(Expression("x <= ComplexInf").toString(), "x <= ComplexInf"); - EXPECT_EQ(Expression("x >= ComplexInf").toString(), "x >= ComplexInf"); - EXPECT_EQ(Expression("ComplexInf = x").toString(), "False"); - EXPECT_EQ(Expression("ComplexInf != x").toString(), "True"); - EXPECT_EQ(Expression("ComplexInf < x").toString(), "ComplexInf < x"); - EXPECT_EQ(Expression("ComplexInf > x").toString(), "ComplexInf > x"); - EXPECT_EQ(Expression("ComplexInf <= x").toString(), "ComplexInf <= x"); - EXPECT_EQ(Expression("ComplexInf >= x").toString(), "ComplexInf >= x"); - EXPECT_EQ(Expression("ComplexInf = ComplexInf").toString(), "ComplexInf = ComplexInf"); - EXPECT_EQ(Expression("Inf = Inf").toString(), "True"); - EXPECT_EQ(Expression("Inf != Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf > Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf < Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf <= Inf").toString(), "True"); - EXPECT_EQ(Expression("-Inf >= Inf").toString(), "False"); - EXPECT_EQ(Expression("-Inf = Inf").toString(), "False"); - EXPECT_EQ(Expression("-Inf != Inf").toString(), "True"); - EXPECT_EQ(Expression("-Inf > Inf").toString(), "False"); - EXPECT_EQ(Expression("-Inf < Inf").toString(), "True"); - EXPECT_EQ(Expression("-Inf <= Inf").toString(), "True"); - EXPECT_EQ(Expression("-Inf >= Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf = -Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf != -Inf").toString(), "True"); - EXPECT_EQ(Expression("Inf > -Inf").toString(), "True"); - EXPECT_EQ(Expression("Inf < -Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf <= -Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf >= -Inf").toString(), "True"); - EXPECT_EQ(Expression("ComplexInf = Inf").toString(), "ComplexInf = Inf"); - EXPECT_EQ(Expression("ComplexInf != Inf").toString(), "ComplexInf != Inf"); - EXPECT_EQ(Expression("ComplexInf > Inf").toString(), "ComplexInf > Inf"); - EXPECT_EQ(Expression("ComplexInf < Inf").toString(), "ComplexInf < Inf"); - EXPECT_EQ(Expression("ComplexInf >= Inf").toString(), "ComplexInf >= Inf"); - EXPECT_EQ(Expression("ComplexInf <= Inf").toString(), "ComplexInf <= Inf"); - EXPECT_EQ(Expression("ComplexInf = -Inf").toString(), "ComplexInf = -Inf"); - EXPECT_EQ(Expression("ComplexInf != -Inf").toString(), "ComplexInf != -Inf"); - EXPECT_EQ(Expression("ComplexInf > -Inf").toString(), "ComplexInf > -Inf"); - EXPECT_EQ(Expression("ComplexInf < -Inf").toString(), "ComplexInf < -Inf"); - EXPECT_EQ(Expression("ComplexInf >= -Inf").toString(), "ComplexInf >= -Inf"); - EXPECT_EQ(Expression("ComplexInf <= -Inf").toString(), "ComplexInf <= -Inf"); - EXPECT_EQ(Expression("Inf = ComplexInf").toString(), "Inf = ComplexInf"); - EXPECT_EQ(Expression("Inf != ComplexInf").toString(), "Inf != ComplexInf"); - EXPECT_EQ(Expression("Inf > ComplexInf").toString(), "Inf > ComplexInf"); - EXPECT_EQ(Expression("Inf < ComplexInf").toString(), "Inf < ComplexInf"); - EXPECT_EQ(Expression("Inf >= ComplexInf").toString(), "Inf >= ComplexInf"); - EXPECT_EQ(Expression("Inf <= ComplexInf").toString(), "Inf <= ComplexInf"); - EXPECT_EQ(Expression("-Inf = ComplexInf").toString(), "-Inf = ComplexInf"); - EXPECT_EQ(Expression("-Inf != ComplexInf").toString(), "-Inf != ComplexInf"); - EXPECT_EQ(Expression("-Inf > ComplexInf").toString(), "-Inf > ComplexInf"); - EXPECT_EQ(Expression("-Inf < ComplexInf").toString(), "-Inf < ComplexInf"); - EXPECT_EQ(Expression("-Inf >= ComplexInf").toString(), "-Inf >= ComplexInf"); - EXPECT_EQ(Expression("-Inf <= ComplexInf").toString(), "-Inf <= ComplexInf"); - EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% = Inf").toString(), "True"); - EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% != Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% < Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% > Inf").toString(), "False"); - EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% <= Inf").toString(), "True"); - EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% >= Inf").toString(), "True"); - - EXPECT_EQ(Expression("0*Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("0*-Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("0*ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf - Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf - ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf + ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf + Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf - Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf + ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("-Inf + ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("0/0").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf/Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("-Inf/-Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf/-Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("-Inf/Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf/ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf/Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf/-Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf/ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("-Inf/ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("x Inf / Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("-Inf + Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf - Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("0^0").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf^0").toString(), "Undefined"); - EXPECT_EQ(Expression("(-Inf)^0").toString(), "Undefined"); - EXPECT_EQ(Expression("ComplexInf^0").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf^I").toString(), "Undefined"); - EXPECT_EQ(Expression("(-Inf)^I").toString(), "Undefined"); - EXPECT_EQ(Expression("(ComplexInf)^I").toString(), "Undefined"); - EXPECT_EQ(Expression("1^Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("1^-Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("1^ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("x^ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("I^Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("I^-Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("I^ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("2^ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("0.2^ComplexInf").toString(), "Undefined"); - EXPECT_EQ(Expression("(x Inf)^0").toString(), "Undefined"); - EXPECT_EQ(Expression("0^(x Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("1^(x Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("sin(0/0)").toString(), "Undefined"); - EXPECT_EQ(Expression("1 + 0^0").toString(), "Undefined"); - EXPECT_EQ(Expression("1 + sin(asin(0^0)) + x").toString(), "Undefined"); - EXPECT_EQ(Expression("1 + (2^2 - 4)^0").toString(), "Undefined"); - EXPECT_EQ(Expression("0^((2^2 - 4)^0)").toString(), "Undefined"); - EXPECT_EQ(Expression("-((2^2 - 4)^0)").toString(), "Undefined"); - EXPECT_EQ(Expression("sin(-((2^2 - 4)^0))").toString(), "Undefined"); - EXPECT_EQ(Expression("0^0 - 0^0").toString(), "Undefined"); - EXPECT_EQ(Expression("0^0 * 0").toString(), "Undefined"); - EXPECT_EQ(Expression("0^0 / 0").toString(), "Undefined"); - EXPECT_EQ(Expression("0 / 0^0").toString(), "Undefined"); - EXPECT_EQ(Expression("0^0 / 0^0").toString(), "Undefined"); - EXPECT_EQ(Expression("(x/x - 1)^0 / 0^0").toString(), "Undefined"); - EXPECT_EQ(Expression("0/0 - 0/0").toString(), "Undefined"); - EXPECT_EQ(Expression("0/0 * 0").toString(), "Undefined"); - EXPECT_EQ(Expression("0/0 / 0").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf / (Inf x)").toString(), "Undefined"); - EXPECT_EQ(Expression("(Inf x) / Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("0 * (Inf x)").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf^x").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf^-x").toString(), "Undefined"); - EXPECT_EQ(Expression("x^Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("(-x)^Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("(Inf x) ^ 0").toString(), "Undefined"); - EXPECT_EQ(Expression("(Inf x) ^ Inf").toString(), "Undefined"); - EXPECT_EQ(Expression("0 ^ (Inf x)").toString(), "Undefined"); - EXPECT_EQ(Expression("Inf ^ (Inf x)").toString(), "Undefined"); - EXPECT_EQ(Expression("(Inf/x)^0").toString(), "Undefined"); - EXPECT_EQ(Expression("log(1, 1)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(0, 0)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(Inf, Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(0, Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(Inf, 0)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(-Inf, -Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(0, -Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(-Inf, 0)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(Inf, -Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(-Inf, Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(ComplexInf, ComplexInf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(0, ComplexInf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(ComplexInf, 0)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(ComplexInf, Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(ComplexInf, -Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(Inf, ComplexInf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(-Inf, ComplexInf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(x Inf, Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(Inf, x Inf)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(0^0, 0^0)").toString(), "Undefined"); - EXPECT_EQ(Expression("log(sign(Inf), -sign(-Inf))").toString(), "Undefined"); - EXPECT_EQ(Expression("tan(Pi) * cot(Pi)").toString(), "Undefined"); - EXPECT_EQ(Expression("sign(ComplexInf)").toString(), "Undefined"); - EXPECT_EQ(Expression("root(2, 0)").toString(), "Undefined"); - - EXPECT_EQ(Expression("Undefined").toString(), "Undefined"); - EXPECT_EQ(Expression("-Undefined").toString(), "Undefined"); - EXPECT_EQ(Expression("Undefined + 10").toString(), "Undefined"); - EXPECT_EQ(Expression("Undefined - 10").toString(), "Undefined"); - EXPECT_EQ(Expression("0/Undefined").toString(), "Undefined"); - EXPECT_EQ(Expression("1/Undefined").toString(), "Undefined"); - EXPECT_EQ(Expression("Undefined^1").toString(), "Undefined"); - EXPECT_EQ(Expression("Undefined^0").toString(), "Undefined"); - EXPECT_EQ(Expression("sin(Undefined)").toString(), "Undefined"); -} - -TEST(ExpressionTests, stringConstructorLargeTest) { - EXPECT_EQ(Expression("10^-500").toString(), - "1/" - "1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" - "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" - "00000000000000000000000000000000000000000000000000000000000000000000000000000"); - - EXPECT_EQ( - Expression("-----------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------a") - .toString(), - "a"); - - EXPECT_EQ( - Expression("-----------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "-----------------------------------------------------------------------------------------------------" - "------------------------------------------------------------------------a") - .toString(), - "-a"); - - EXPECT_EQ( - Expression("a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+" - "a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+" - "a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+" - "a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+" - "a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+" - "a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a") - .toString(), - "266 a"); - - EXPECT_EQ( - Expression("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a") - .toString(), - "a"); - - EXPECT_EQ( - Expression("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" - "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a") - .toString(), - "~a"); - - EXPECT_EQ( - Expression("(x+y)^20").toString(), - "x^20 + 20 x^19 y + 190 x^18 y^2 + 1140 x^17 y^3 + 4845 x^16 y^4 + 15504 x^15 y^5 + 38760 x^14 y^6 + 77520 x^13 " - "y^7 + 125970 x^12 y^8 + 167960 x^11 y^9 + 184756 x^10 y^10 + 167960 x^9 y^11 + 125970 x^8 y^12 + 77520 x^7 y^13 " - "+ 38760 x^6 y^14 + 15504 x^5 y^15 + 4845 x^4 y^16 + 1140 x^3 y^17 + 190 x^2 y^18 + 20 x y^19 + y^20"); - - EXPECT_EQ(Expression("(x+y+z)^4").toString(), - "x^4 + 4 x^3 y + 4 x^3 z + 6 x^2 y^2 + 12 x^2 y z + 6 x^2 z^2 + 4 x y^3 + 12 x y^2 z + 12 x y z^2 + 4 x " - "z^3 + y^4 + 4 y^3 z + 6 y^2 z^2 + 4 y z^3 + z^4"); - - // TODO: for benchmarks - // EXPECT_EQ(Expression("(2 + 3 * x + 4 * x * y)^60").toString(), ""); - // EXPECT_EQ(Expression("(a+b+c+d)^60").toString(), ""); - - EXPECT_EQ( - Expression( - "(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+" - "y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)") - .toString(), - "x^30 + 30 x^29 y + 435 x^28 y^2 + 4060 x^27 y^3 + 27405 x^26 y^4 + 142506 x^25 y^5 + 593775 x^24 y^6 + 2035800 " - "x^23 y^7 + 5852925 x^22 y^8 + 14307150 x^21 y^9 + 30045015 x^20 y^10 + 54627300 x^19 y^11 + 86493225 x^18 y^12 " - "+ 119759850 x^17 y^13 + 145422675 x^16 y^14 + 155117520 x^15 y^15 + 145422675 x^14 y^16 + 119759850 x^13 y^17 + " - "86493225 x^12 y^18 + 54627300 x^11 y^19 + 30045015 x^10 y^20 + 14307150 x^9 y^21 + 5852925 x^8 y^22 + 2035800 " - "x^7 y^23 + 593775 x^6 y^24 + 142506 x^5 y^25 + 27405 x^4 y^26 + 4060 x^3 y^27 + 435 x^2 y^28 + 30 x y^29 + " - "y^30"); - - EXPECT_EQ( - Expression( - "(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-" - "y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)") - .toString(), - "x^30 - 30 x^29 y + 435 x^28 y^2 - 4060 x^27 y^3 + 27405 x^26 y^4 - 142506 x^25 y^5 + 593775 x^24 y^6 - 2035800 " - "x^23 y^7 + 5852925 x^22 y^8 - 14307150 x^21 y^9 + 30045015 x^20 y^10 - 54627300 x^19 y^11 + 86493225 x^18 y^12 " - "- 119759850 x^17 y^13 + 145422675 x^16 y^14 - 155117520 x^15 y^15 + 145422675 x^14 y^16 - 119759850 x^13 y^17 + " - "86493225 x^12 y^18 - 54627300 x^11 y^19 + 30045015 x^10 y^20 - 14307150 x^9 y^21 + 5852925 x^8 y^22 - 2035800 " - "x^7 y^23 + 593775 x^6 y^24 - 142506 x^5 y^25 + 27405 x^4 y^26 - 4060 x^3 y^27 + 435 x^2 y^28 - 30 x y^29 + " - "y^30"); - - EXPECT_EQ( - Expression("sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(x))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))" - ")))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))") - .toString(), - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(" - "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(x)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))" - ")))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))" - ")"); - - // TODO: for benchmark - // EXPECT_EQ(Expression("a<->b<->c<->d<->e<->f").toString(), - - EXPECT_EQ(Expression("a<->b<->c<->d<->e").toString(), "(a & b & c & d & e) | " - "(a & b & c & ~d & ~e) | " - "(a & b & ~c & d & ~e) | " - "(a & b & ~c & ~d & e) | " - "(a & ~b & c & d & ~e) | " - "(a & ~b & c & ~d & e) | " - "(a & ~b & ~c & d & e) | " - "(a & ~b & ~c & ~d & ~e) | " - "(~a & b & c & d & ~e) | " - "(~a & b & c & ~d & e) | " - "(~a & b & ~c & d & e) | " - "(~a & b & ~c & ~d & ~e) | " - "(~a & ~b & c & d & e) | " - "(~a & ~b & c & ~d & ~e) | " - "(~a & ~b & ~c & d & ~e) | " - "(~a & ~b & ~c & ~d & e)"); - - EXPECT_EQ(Expression("a & b & c & d & e & f & g & h & i & j & k & l & m & n & o & p & q & r & s & t & u & v & w & x " - "& y & z & x_1 & x_2 & x_3 | x_4") - .toString(), - "(a & b & c & d & e & f & g & h & i & j & k & l & m & n & o & p & q & r & s & t & u & v & w & x & x_1 & " - "x_2 & x_3 & y & z) | x_4"); - - EXPECT_EQ(Expression("a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x " - "| y | z | x_1 | x_2 | x_3 & x_4") - .toString(), - "a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | x_1 | x_2 " - "| (x_3 & x_4) | y | z"); } TEST(ExpressionTests, stringConstructorNegativeTest) { EXPECT_THROW(Expression(""), InvalidInputException); EXPECT_THROW(Expression("1+"), InvalidInputException); - EXPECT_THROW(Expression("1-"), InvalidInputException); - EXPECT_THROW(Expression("1*"), InvalidInputException); - EXPECT_THROW(Expression("1/"), InvalidInputException); - EXPECT_THROW(Expression("*1"), InvalidInputException); - EXPECT_THROW(Expression("/1"), InvalidInputException); - EXPECT_THROW(Expression(" + "), InvalidInputException); - EXPECT_THROW(Expression("(1+2))"), InvalidInputException); - EXPECT_THROW(Expression("5-*3"), InvalidInputException); - EXPECT_THROW(Expression("5 3 +"), InvalidInputException); - EXPECT_THROW(Expression("2.2.2"), InvalidInputException); - EXPECT_THROW(Expression("--"), InvalidInputException); - EXPECT_THROW(Expression("."), InvalidInputException); - EXPECT_THROW(Expression(","), InvalidInputException); - EXPECT_THROW(Expression("/"), InvalidInputException); - EXPECT_THROW(Expression(";"), InvalidInputException); - EXPECT_THROW(Expression("\'"), InvalidInputException); - EXPECT_THROW(Expression("["), InvalidInputException); - EXPECT_THROW(Expression("]"), InvalidInputException); - EXPECT_THROW(Expression("!"), InvalidInputException); - EXPECT_THROW(Expression("@"), InvalidInputException); - EXPECT_THROW(Expression("\""), InvalidInputException); - EXPECT_THROW(Expression("#"), InvalidInputException); - EXPECT_THROW(Expression("№"), InvalidInputException); - EXPECT_THROW(Expression("%"), InvalidInputException); - EXPECT_THROW(Expression(":"), InvalidInputException); - EXPECT_THROW(Expression("?"), InvalidInputException); - EXPECT_THROW(Expression("*"), InvalidInputException); - EXPECT_THROW(Expression("("), InvalidInputException); - EXPECT_THROW(Expression(")"), InvalidInputException); - EXPECT_THROW(Expression("-"), InvalidInputException); - EXPECT_THROW(Expression("+"), InvalidInputException); - EXPECT_THROW(Expression("$"), InvalidInputException); - EXPECT_THROW(Expression("^"), InvalidInputException); - EXPECT_THROW(Expression("&"), InvalidInputException); - EXPECT_THROW(Expression("_"), InvalidInputException); - EXPECT_THROW(Expression("[1+1]"), InvalidInputException); - EXPECT_THROW(Expression("{1}"), InvalidInputException); - EXPECT_THROW(Expression(",2"), InvalidInputException); - EXPECT_THROW(Expression("2,"), InvalidInputException); - - EXPECT_THROW(Expression("(1"), InvalidInputException); - EXPECT_THROW(Expression("(((2)"), InvalidInputException); - EXPECT_THROW(Expression("(((2))"), InvalidInputException); - EXPECT_THROW(Expression("((2)))"), InvalidInputException); - EXPECT_THROW(Expression("(2)))"), InvalidInputException); - EXPECT_THROW(Expression("(2"), InvalidInputException); - EXPECT_THROW(Expression("((2)"), InvalidInputException); - EXPECT_THROW(Expression("((2"), InvalidInputException); - EXPECT_THROW(Expression("((((2)((2))))"), InvalidInputException); - EXPECT_THROW(Expression("(()())"), InvalidInputException); - EXPECT_THROW(Expression("((()()))"), InvalidInputException); - EXPECT_THROW(Expression("((((()))))"), InvalidInputException); - EXPECT_THROW(Expression("(,) + (,)"), InvalidInputException); - - EXPECT_THROW(Expression("!2"), InvalidInputException); - EXPECT_THROW(Expression("!!2"), InvalidInputException); - EXPECT_THROW(Expression("!2!!"), InvalidInputException); - EXPECT_THROW(Expression("!(2"), InvalidInputException); - EXPECT_THROW(Expression("!(2)"), InvalidInputException); - EXPECT_THROW(Expression("2)!"), InvalidInputException); - EXPECT_THROW(Expression("sin(2))!"), InvalidInputException); - EXPECT_THROW(Expression("!!!!!!"), InvalidInputException); - - EXPECT_THROW(Expression("esin()"), InvalidInputException); - EXPECT_THROW(Expression("(a+b)*()"), InvalidInputException); - - EXPECT_THROW(Expression("sin(2,3)"), InvalidInputException); - EXPECT_THROW(Expression("sin(2,3) + 2"), InvalidInputException); - EXPECT_THROW(Expression("cos(sin(2,3))"), InvalidInputException); - EXPECT_THROW(Expression("sin(,)"), InvalidInputException); - EXPECT_THROW(Expression("sin(,2)"), InvalidInputException); - EXPECT_THROW(Expression("sin(2,)"), InvalidInputException); - EXPECT_THROW(Expression("sin()"), InvalidInputException); - EXPECT_THROW(Expression("log(1)"), InvalidInputException); - EXPECT_THROW(Expression("log()"), InvalidInputException); - - EXPECT_THROW(Expression("(1 = 1) / 2").toString(), InvalidInputException); - EXPECT_THROW(Expression("2 + (1 = 2)").toString(), InvalidInputException); - EXPECT_THROW(Expression("sin(1 = 1)").toString(), InvalidInputException); - EXPECT_THROW(Expression("sin(sin(1 = 1))").toString(), InvalidInputException); - EXPECT_THROW(Expression("sin(sin(sin(1 = 1)))").toString(), InvalidInputException); - EXPECT_THROW(Expression("True/True").toString(), InvalidInputException); - EXPECT_THROW(Expression("((1 == 1)) + ((1 == 2))").toString(), InvalidInputException); - EXPECT_THROW(Expression("((1 == 1)) - ((1 == 1))").toString(), InvalidInputException); - EXPECT_THROW(Expression("((1 == 1)) / ((1 == 1))").toString(), InvalidInputException); - EXPECT_THROW(Expression("(5+5)=(2=5)").toString(), InvalidInputException); - EXPECT_THROW(Expression("1+(sin(x)<2)").toString(), InvalidInputException); - EXPECT_THROW(Expression("1/(sin(x)<2)").toString(), InvalidInputException); - EXPECT_THROW(Expression("1+False").toString(), InvalidInputException); - EXPECT_THROW(Expression("False+1").toString(), InvalidInputException); - EXPECT_THROW(Expression("1=False").toString(), InvalidInputException); - EXPECT_THROW(Expression("False=1").toString(), InvalidInputException); - EXPECT_THROW(Expression("1&2").toString(), InvalidInputException); - EXPECT_THROW(Expression("x+1&x+2").toString(), InvalidInputException); - EXPECT_THROW(Expression("x+1&x").toString(), InvalidInputException); - EXPECT_THROW(Expression("x&x+2").toString(), InvalidInputException); - EXPECT_THROW(Expression("(x&y)=(y&z)").toString(), InvalidInputException); - EXPECT_THROW(Expression("derivative(x=y, x)").toString(), InvalidInputException); - EXPECT_THROW(Expression("derivative(x&y,x)").toString(), InvalidInputException); - EXPECT_THROW(Expression("derivative(True,a)").toString(), InvalidInputException); - EXPECT_THROW(Expression("(a+1)_(a>2)").toString(), InvalidInputException); - EXPECT_THROW(Expression("(x+1)_1").toString(), InvalidInputException); - EXPECT_THROW(Expression("(x*2)_1").toString(), InvalidInputException); - EXPECT_THROW(Expression("(x*2)_((x+2)_x)").toString(), InvalidInputException); - EXPECT_THROW(Expression("x^x_1").toString(), InvalidInputException); - EXPECT_THROW(Expression("E&a").toString(), InvalidInputException); - EXPECT_THROW(Expression("~Inf").toString(), InvalidInputException); - EXPECT_THROW(Expression("~Undefined").toString(), InvalidInputException); - EXPECT_THROW(Expression("a | Undefined").toString(), InvalidInputException); - EXPECT_THROW(Expression("Inf - Inf = 0").toString(), InvalidInputException); - EXPECT_THROW(Expression("Inf - Inf = 0 | a").toString(), InvalidInputException); - EXPECT_THROW(Expression("0/0 = 0/0").toString(), InvalidInputException); - EXPECT_THROW(Expression("Undefined = Undefined").toString(), InvalidInputException); - - EXPECT_THROW(Expression("min()").toString(), InvalidInputException); - EXPECT_THROW(Expression("min(True, False)").toString(), InvalidInputException); - EXPECT_THROW(Expression("max()").toString(), InvalidInputException); - EXPECT_THROW(Expression("max(True, False)").toString(), InvalidInputException); -} - -TEST(ExpressionTests, approximateTest) { - EXPECT_EQ(Expression("150!").approximate().toString(), - "5.7133839564458545904789328652610540031895535786011264182548375833179829124845398*10^262"); - EXPECT_EQ(Expression("E").approximate().toString(), - "2.7182818284590452353602874713526624977572470936999595749669676277240766303535476"); - EXPECT_EQ(Expression("Pi").approximate().toString(), - "3.141592653589793238462643383279502884197169399375105820974944592307816406286209"); - EXPECT_EQ(Expression("exp100").approximate().toString(), - "26881171418161354484126255515800135873611118.773741922415191608615280287034909565"); - EXPECT_EQ(Expression("E^101").approximate().toString(), - "73070599793680672726476826340615135890078390.083960707616445859670987728609198428"); - EXPECT_EQ(Expression("E^(-101)").approximate().toString(), - "1.3685394711738530002470557302322944177986775531612023009807438134142551921153897*10^-44"); - EXPECT_EQ(Expression("ln3").approximate().toString(), - "1.098612288668109691395245236922525704647490557822749451734694333637494293218609"); - EXPECT_EQ(Expression("ln2").approximate().toString(), - "0.69314718055994530941723212145817656807550013436025525412068000949339362196969472"); - EXPECT_EQ(Expression("ln100").approximate().toString(), - "4.605170185988091368035982909368728415202202977257545952066655801935145219354705"); - EXPECT_EQ(Expression("lg99").approximate().toString(), - "1.9956351945975499153402557777532548601069599188478448242562702992902113378005716"); - EXPECT_EQ(Expression("lg100").approximate().toString(), - "2"); - EXPECT_EQ(Expression("lb100").approximate().toString(), - "6.6438561897747246957406388589787803517296627860491612241095127916318695532172504"); - EXPECT_EQ(Expression("lb4").approximate().toString(), - "2"); - EXPECT_EQ(Expression("sin10").approximate().toString(), - "-0.54402111088936981340474766185137728168364301291622389157418401261675720964049343"); - EXPECT_EQ(Expression("cos10").approximate().toString(), - "-0.83907152907645245225886394782406483451993016513316854683595373104879258686627077"); - EXPECT_EQ(Expression("tan10").approximate().toString(), - "0.6483608274590866712591249330098086768168743429837249756336279673958556003746239"); - EXPECT_EQ(Expression("cot10").approximate().toString(), - "1.5423510453569200482774693556824293113206672064019624909194716061981945043136768"); - EXPECT_EQ(Expression("sec10").approximate().toString(), - "-1.1917935066878958108796938984273465902047299220035186727706136445417481901426913"); - EXPECT_EQ(Expression("csc10").approximate().toString(), - "-1.8381639608896655887052365237649145973889020018834973862573493747201515058875292"); - EXPECT_EQ(Expression("asin0.9").approximate().toString(), - "1.1197695149986341866866770558453996158951621864033028823756818639144375371065333"); - EXPECT_EQ(Expression("acos0.9").approximate().toString(), - "0.45102681179626243254464463579435182620342251328425002811179043223947066603657116"); - EXPECT_EQ(Expression("atan10").approximate().toString(), - "1.4711276743037345918528755717617308518553063771832382624719635193438804556955538"); - EXPECT_EQ(Expression("acot10").approximate().toString(), - "0.099668652491162027378446119878020590243278322504314648015508776810027747447550654"); - EXPECT_EQ(Expression("asec10").approximate().toString(), - "1.4706289056333368228857985121870581235299087274579233690964484411175055294922419"); - EXPECT_EQ(Expression("acsc10").approximate().toString(), - "0.10016742116155979634552317945269331856867597222962954139102385503640267365086255"); - EXPECT_EQ(Expression("sinh10").approximate().toString(), - "11013.232874703393377236524554846364402901451190319346103835228548076948583785685"); - EXPECT_EQ(Expression("cosh10").approximate().toString(), - "11013.232920103323139721376090437879963452061428237434970400197807148254234785107"); - EXPECT_EQ(Expression("tanh10").approximate().toString(), - "0.99999999587769276361959283713827574105081461849501996226140069543680188089876683"); - EXPECT_EQ(Expression("coth10").approximate().toString(), - "1.0000000041223072533738241840280803124601800267562193084479187641100667185123807"); - EXPECT_EQ(Expression("sech10").approximate().toString(), - "9.0799859337817244080129507820478187068803766001825381516397080560420174468338146*10^-5"); - EXPECT_EQ(Expression("csch10").approximate().toString(), - "9.0799859712122162833736493607291370367410765671445711489891847505702178459640405*10^-5"); - EXPECT_EQ(Expression("asinh0.9").approximate().toString(), - "0.80886693565278246250935016738160604299699494260611658590774273687832265593746445"); - EXPECT_EQ(Expression("acosh1.9").approximate().toString(), - "1.2571958266003804345446952305599900185447096920846764166114358405852412800661934"); - EXPECT_EQ(Expression("atanh0.9").approximate().toString(), - "1.4722194895832202300045137159439267686186896306495644092689801182046463510320986"); - EXPECT_EQ(Expression("acoth1.9").approximate().toString(), - "0.5850356263251273221963907792584300980997658991386225877261408421838960973503172"); - EXPECT_EQ(Expression("asech0.9").approximate().toString(), - "0.46714530810326201812838149166592294470091920423633277925539967947899330501299865"); - EXPECT_EQ(Expression("acsch1.9").approximate().toString(), - "0.50462466551048371741604715782227695355849782672942308840662278634723539375892107"); - EXPECT_EQ(Expression("((2))*sqrt2").approximate().toString(), - "2.8284271247461900976033774484193961571393437507538961463533594759814649569242141"); - EXPECT_EQ(Expression("sqrt2*((2))").approximate().toString(), - "2.8284271247461900976033774484193961571393437507538961463533594759814649569242141"); - EXPECT_EQ(Expression("sin(1)^2").approximate().toString(), - "0.70807341827357119349878411475038109488300038553777244537757498689098246806203958"); - EXPECT_EQ(Expression("sin(-1)^2").approximate().toString(), - "0.70807341827357119349878411475038109488300038553777244537757498689098246806203958"); - EXPECT_EQ(Expression("sin1^2").approximate().toString(), - "0.70807341827357119349878411475038109488300038553777244537757498689098246806203958"); - EXPECT_EQ(Expression("sin(10^30)").approximate().toString(), - "-0.090116901912138058030386428952987330274396332993043449885460666579773983476795775"); - EXPECT_EQ(Expression("sin(Pi/3)").approximate().toString(), - "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); - EXPECT_EQ(Expression("cos(Pi/3)").approximate().toString(), - "0.5"); - EXPECT_EQ(Expression("2!*E").approximate().toString(), - "5.4365636569180904707205749427053249955144941873999191499339352554481532607070952"); - EXPECT_EQ(Expression("E*2!").approximate().toString(), - "5.4365636569180904707205749427053249955144941873999191499339352554481532607070952"); - EXPECT_EQ(Expression("sqrt((1-cos(2*(Pi/3)))/2)").approximate().toString(), - "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); - EXPECT_EQ(Expression("2*sqrt((1-cos(2*(Pi/3)))/2)*cos(Pi/3)").approximate().toString(), - "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); - EXPECT_EQ(Expression("1/(sin(5))").approximate().toString(), - "-1.0428352127714058197831198559077598439723517523645461744044708582222288573346961"); - EXPECT_EQ(Expression("sin(60deg)").approximate().toString(), - "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); - EXPECT_EQ(Expression("log(500!, 500! + 1)").approximate().toString(), "1.0"); - - EXPECT_EQ(Expression("E").approximate().approximate().toString(), - "2.7182818284590452353602874713526624977572470936999595749669676277240766303535476"); - - EXPECT_EQ(Expression("E^(E^(E^(E^(E^E))))").approximate().toString(), - "2.7182818284590452353602874713526624977572470936999595749669676277240766303535476^(2." - "7182818284590452353602874713526624977572470936999595749669676277240766303535476^(2." - "3315043990071954622896899110121376663320174289635168232800545468180794366424973*10^1656520))"); - - EXPECT_EQ(Expression("sin(floor(E^10))").approximate().toString(), - "-0.28969263040207500615366554669422425489060452363910610917250538601423874640051459"); - EXPECT_EQ(Expression("sin(ceil(E^10))").approximate().toString(), - "-0.96191007900804641383913232250486113391226136975674660918707766984049730795121162"); - EXPECT_EQ(Expression("cos(floor(11^10))").approximate().toString(), - "-0.4398324432476489878621537810397255512584110903388962591029029773506989984056853"); - EXPECT_EQ(Expression("cos(ceil(11^10))").approximate().toString(), - "-0.4398324432476489878621537810397255512584110903388962591029029773506989984056853"); - EXPECT_EQ(Expression("ln(floor(E^10))").approximate().toString(), - "9.9999788527248892938130978462467834105024172271892998574080180654845967473754541"); - EXPECT_EQ(Expression("root(ceil(E^10), 3)").approximate().toString(), - "28.031851508556071101342707542030481102710581537531050303928482414307208991692382"); - EXPECT_EQ(Expression("ln(floor(11^10))").approximate().toString(), - "23.978952727983705440619435779651292998217068539374171752185677091305736239132367"); - EXPECT_EQ(Expression("root(ceil(11^10), 3)").approximate().toString(), - "2960.117500547758958671098654417191228566388539497004587135829271326993708483441"); - - EXPECT_EQ(Expression("(2/3)!").approximate().toString(), - "0.90274529295093361129685868543634252367955151070452913226268164530918864360116169"); - EXPECT_EQ(Expression("E!").approximate().toString(), - "4.2608204763570033817001212246457024649334243739593219749116048935993443487275001"); - EXPECT_EQ(Expression("(2/3)!!").approximate().toString(), - "0.66666666666666666666666666666666666666666666666666666666666666666666666666666667!!"); - EXPECT_EQ(Expression("(1/1000000000000000000000000000000000000000)!!").approximate().toString(), - "(1.0*10^-39)!!"); - EXPECT_EQ(Expression("(-1)!!").approximate().toString(), - "(-1)!!"); - - EXPECT_EQ(Expression("1 / (1 - tanh(11^10))").approximate().toString(), "cosh(25937424601)/(cosh(25937424601) - sinh(25937424601))"); - EXPECT_EQ(Expression("1 / (1 - coth(11^10))").approximate().toString(), "sinh(25937424601)/(sinh(25937424601) - cosh(25937424601))"); - EXPECT_EQ(Expression("1 / (ln(2)^10000000000000)").approximate().approximate().toString(), "1/0.0"); - - EXPECT_EQ(Expression("sqr(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("root(ln(2)^10000000000000, 3)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("sin(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("cos(ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("tan(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("cot(ln(2)^10000000000000)").approximate().toString(), "cot(0.0)"); - EXPECT_EQ(Expression("sec(ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("csc(ln(2)^10000000000000)").approximate().toString(), "csc(0.0)"); - EXPECT_EQ(Expression("asin(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("acos(ln(2)^10000000000000)").approximate().toString(), "1.5707963267948966192313216916397514420985846996875529104874722961539082031431045"); - EXPECT_EQ(Expression("atan(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("acot(ln(2)^10000000000000)").approximate().toString(), "acot(0.0)"); - EXPECT_EQ(Expression("asec(ln(2)^10000000000000)").approximate().toString(), "asec(0.0)"); - EXPECT_EQ(Expression("acsc(ln(2)^10000000000000)").approximate().toString(), "acsc(0.0)"); - EXPECT_EQ(Expression("sinh(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("cosh(ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("tanh(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("coth(ln(2)^10000000000000)").approximate().toString(), "coth(0.0)"); - EXPECT_EQ(Expression("sech(ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("csch(ln(2)^10000000000000)").approximate().toString(), "csch(0.0)"); - EXPECT_EQ(Expression("asinh(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("acosh(ln(2)^10000000000000)").approximate().toString(), "acosh(0.0)"); - EXPECT_EQ(Expression("atanh(ln(2)^10000000000000)").approximate().toString(), "0.0"); - EXPECT_EQ(Expression("acoth(ln(2)^10000000000000)").approximate().toString(), "acoth(0.0)"); - EXPECT_EQ(Expression("asech(ln(2)^10000000000000)").approximate().toString(), "asech(0.0)"); - EXPECT_EQ(Expression("acsch(ln(2)^10000000000000)").approximate().toString(), "acsch(0.0)"); - - EXPECT_EQ(Expression("sqrt(-ln(2)^10000000000000)").approximate().toString(), "sqrt(-0.0)"); - EXPECT_EQ(Expression("root(-ln(2)^10000000000000, 3)").approximate().toString(), "root(-0.0, 3)"); - EXPECT_EQ(Expression("sin(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("cos(-ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("tan(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("cot(-ln(2)^10000000000000)").approximate().toString(), "-cot(0.0)"); - EXPECT_EQ(Expression("sec(-ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("csc(-ln(2)^10000000000000)").approximate().toString(), "-csc(0.0)"); - EXPECT_EQ(Expression("asin(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("acos(-ln(2)^10000000000000)").approximate().toString(), "1.5707963267948966192313216916397514420985846996875529104874722961539082031431045"); - EXPECT_EQ(Expression("atan(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("acot(-ln(2)^10000000000000)").approximate().toString(), "acot(-0.0)"); - EXPECT_EQ(Expression("asec(-ln(2)^10000000000000)").approximate().toString(), "asec(-0.0)"); - EXPECT_EQ(Expression("acsc(-ln(2)^10000000000000)").approximate().toString(), "acsc(-0.0)"); - EXPECT_EQ(Expression("sinh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("cosh(-ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("tanh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("coth(-ln(2)^10000000000000)").approximate().toString(), "-coth(0.0)"); - EXPECT_EQ(Expression("sech(-ln(2)^10000000000000)").approximate().toString(), "1.0"); - EXPECT_EQ(Expression("csch(-ln(2)^10000000000000)").approximate().toString(), "-csch(0.0)"); - EXPECT_EQ(Expression("asinh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("acosh(-ln(2)^10000000000000)").approximate().toString(), "acosh(-0.0)"); - EXPECT_EQ(Expression("atanh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); - EXPECT_EQ(Expression("acoth(-ln(2)^10000000000000)").approximate().toString(), "acoth(-0.0)"); - EXPECT_EQ(Expression("asech(-ln(2)^10000000000000)").approximate().toString(), "asech(-0.0)"); - EXPECT_EQ(Expression("acsch(-ln(2)^10000000000000)").approximate().toString(), "acsch(-0.0)"); - - EXPECT_EQ(Expression("floor(ln(2)^10000000000000)").approximate().toString(), "floor(0.0)"); - EXPECT_EQ(Expression("ceil(ln(2)^10000000000000)").approximate().toString(), "ceil(0.0)"); - EXPECT_EQ(Expression("sign(ln(2)^10000000000000)").approximate().toString(), "1"); - EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000)").approximate().toString(), "-ceil(-1.0)"); - EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000)").approximate().toString(), "-floor(-1.0)"); - EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000)").approximate().toString(), "1"); - - EXPECT_EQ(Expression("floor(ln(2)^10000000000000 * sin(4))").approximate().toString(), "floor(-0.0)"); - EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 * sin(4))").approximate().toString(), "ceil(-0.0)"); - EXPECT_EQ(Expression("sign(ln(2)^10000000000000 * sin(4))").approximate().toString(), "-1"); - EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 * sin(4))").approximate().toString(), "-ceil(-1.0)"); - EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 * sin(4))").approximate().toString(), "-floor(-1.0)"); - EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 * sin(4))").approximate().toString(), "1"); - - EXPECT_EQ(Expression("floor(ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "floor(-0.0)"); - EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "ceil(-0.0)"); - EXPECT_EQ(Expression("sign(ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "-1"); - EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "-ceil(-1.0)"); - EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "-floor(-1.0)"); - EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "1"); - - EXPECT_EQ(Expression("floor(ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "floor(-0.0)"); - EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "ceil(-0.0)"); - EXPECT_EQ(Expression("sign(ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "-1"); - EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "-ceil(-1.0)"); - EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "-floor(-1.0)"); - EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "1"); - - EXPECT_EQ(Expression("floor(ln(2)^10000000000000 / sin(4))").approximate().toString(), "floor(-0.0)"); - EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 / sin(4))").approximate().toString(), "ceil(-0.0)"); - EXPECT_EQ(Expression("sign(ln(2)^10000000000000 / sin(4))").approximate().toString(), "-1"); - EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 / sin(4))").approximate().toString(), "-ceil(-1.0)"); - EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 / sin(4))").approximate().toString(), "-floor(-1.0)"); - EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 / sin(4))").approximate().toString(), "1"); - - EXPECT_EQ(Expression("floor(ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "floor(-0.0)"); - EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "ceil(-0.0)"); - EXPECT_EQ(Expression("sign(ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "-1"); - EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "-ceil(-1.0)"); - EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "-floor(-1.0)"); - EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "1"); - - EXPECT_EQ(Expression("floor(ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "floor(-0.0)"); - EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "ceil(-0.0)"); - EXPECT_EQ(Expression("sign(ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "-1"); - EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "-ceil(-1.0)"); - EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "-floor(-1.0)"); - EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "1"); - - EXPECT_EQ(Expression("ln(2)^10000000000000 = 0").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 != 0").approximate().toString(), "True"); - EXPECT_EQ(Expression("ln(2)^10000000000000 < 0").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 > 0").approximate().toString(), "True"); - EXPECT_EQ(Expression("ln(2)^10000000000000 <= 0").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 >= 0").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 = 0").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 != 0").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 < 0").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 > 0").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 <= 0").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 >= 0").approximate().toString(), "False"); - - EXPECT_EQ(Expression("ln(2)^10000000000000 = ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 != ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("ln(2)^10000000000000 < ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("ln(2)^10000000000000 > ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 <= ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("ln(2)^10000000000000 >= ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 = ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 != ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 < ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 > ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 <= ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 >= ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 = -ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 != -ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("ln(2)^10000000000000 < -ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 > -ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("ln(2)^10000000000000 <= -ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("ln(2)^10000000000000 >= -ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 = -ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 != -ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 < -ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 > -ln(2)^100000000").approximate().toString(), "True"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 <= -ln(2)^100000000").approximate().toString(), "False"); - EXPECT_EQ(Expression("-ln(2)^10000000000000 >= -ln(2)^100000000").approximate().toString(), "True"); - - EXPECT_EQ(Expression("I").approximate().toString(), "I"); - EXPECT_EQ(Expression("5 + I").approximate().toString(), "5 + I"); - EXPECT_EQ(Expression("5 I").approximate().toString(), "5 I"); - EXPECT_EQ(Expression("5 + 5 I").approximate().toString(), "5 + 5 I"); - EXPECT_EQ(Expression("5/2 + 1/2 I").approximate().toString(), "2.5 + 0.5 I"); - EXPECT_EQ(Expression("5 + 1/2 I").approximate().toString(), "5 + 0.5 I"); - EXPECT_EQ(Expression("5/2 + 2 I").approximate().toString(), "2.5 + 2 I"); - EXPECT_EQ(Expression("5/I").approximate().toString(), "-5 I"); - EXPECT_EQ(Expression("E/I").approximate().toString(), "-2.7182818284590452353602874713526624977572470936999595749669676277240766303535476 I"); - EXPECT_EQ(Expression("-I").approximate().toString(), "-I"); - EXPECT_EQ(Expression("5 - I").approximate().toString(), "5 - I"); - EXPECT_EQ(Expression("5 - I").approximate().toString(), "5 - I"); - EXPECT_EQ(Expression("5 - 5 I").approximate().toString(), "5 - 5 I"); - EXPECT_EQ(Expression("5/2 - 1/2 I").approximate().toString(), "2.5 - 0.5 I"); - EXPECT_EQ(Expression("5 - 1/2 I").approximate().toString(), "5 - 0.5 I"); - EXPECT_EQ(Expression("5/2 - 2 I").approximate().toString(), "2.5 - 2 I"); - EXPECT_EQ(Expression("5/-I").approximate().toString(), "5 I"); - EXPECT_EQ(Expression("E/-I").approximate().toString(), "2.7182818284590452353602874713526624977572470936999595749669676277240766303535476 I"); - EXPECT_EQ(Expression("sin(I)").approximate().toString(), "sin(I)"); - EXPECT_EQ(Expression("sin(5 + I)").approximate().toString(), "sin(5 + I)"); - EXPECT_EQ(Expression("sin(5/2 + 1/2 I)").approximate().toString(), "sin(2.5 + 0.5 I)"); - EXPECT_EQ(Expression("ln(I + 1)").approximate().toString(), "ln(1 + I)"); - - EXPECT_EQ(Expression("ln(x)").approximate().toString(), "ln(x)"); - EXPECT_EQ(Expression("lb(x)").approximate().toString(), "log(2, x)"); - EXPECT_EQ(Expression("sqrt(x)").approximate().toString(), "sqrt(x)"); - EXPECT_EQ(Expression("root(x, 3)").approximate().toString(), "root(x, 3)"); - EXPECT_EQ(Expression("root(x, 10)").approximate().toString(), "x^0.1"); - EXPECT_EQ(Expression("root(x, 33)").approximate().toString(), "x^0.03030303030303030303030303030303030303030303030303030303030303030303030303030303"); - - EXPECT_EQ(Expression("ln(9/40) a + 1 > 0").approximate().toString(), "a - 0.67039636015551187562980441234433718448357469016083894454851276080981791123695912 < 0"); - EXPECT_EQ(Expression("-a + Pi^4 sqrt(2) a < 0").approximate().toString(), "a < 0"); - EXPECT_EQ(Expression("-a + Pi^4 sqrt(2) a - sqrt(3) a < 0").approximate().toString(), "a < 0"); - EXPECT_EQ(Expression("-a + Pi^4 sqrt(2) a - sqrt(3) a + 1 < 0").approximate().toString(), "a + 0.0074060245747335632557466509014062540940313639927954137165613831918681276157723614 < 0"); - - EXPECT_EQ(Expression("123").approximate(2).toString(), "1.2*10^2"); - EXPECT_EQ(Expression("123").approximate(3).toString(), "123"); - EXPECT_EQ(Expression("999").approximate(2).toString(), "1.0*10^3"); - EXPECT_EQ(Expression("999").approximate(3).toString(), "999"); - EXPECT_EQ(Expression("1000").approximate(3).toString(), "1.0*10^3"); - EXPECT_EQ(Expression("1000").approximate(4).toString(), "1000"); - EXPECT_EQ(Expression("2/3").approximate(0).toString(), "0.7"); - EXPECT_EQ(Expression("2/3").approximate(1).toString(), "0.7"); - EXPECT_EQ(Expression("2/3").approximate(2).toString(), "0.67"); - EXPECT_EQ(Expression("10^10000").approximate(8).toString(), "1.0*10^10000"); - EXPECT_EQ(Expression("9^10000").approximate(8).toString(), "2.6613034*10^9542"); - EXPECT_EQ(Expression("sin(E)").approximate(16).toString(), "0.4107812905029087"); - EXPECT_EQ(Expression("sin(E)").approximate(100).toString(), "0.4107812905029086954760094920183605918883069703934153453045716588061351824376549958759786190454355935"); - EXPECT_EQ(Expression("sin(E)").approximate(500).toString(), "0.41078129050290869547600949201836059188830697039341534530457165880613518243765499587597861904543559353998291725993302611025612058214980807451386832166444404531330197030068700843779775501870429268806003976547248700619445558784780526262698913892212813629990839737608068439105974107056580477820375774780424366945910698422961638162689359340566062721679765484253127451162965356964229969288617282831139369276388867344864990496109344825533823527519982767717612020764891885643060371919941565596238925522726933"); - EXPECT_EQ(Expression("sin(E)").approximate(1000).toString(), "0.410781290502908695476009492018360591888306970393415345304571658806135182437654995875978619045435593539982917259933026110256120582149808074513868321664444045313301970300687008437797755018704292688060039765472487006194455587847805262626989138922128136299908397376080684391059741070565804778203757747804243669459106984229616381626893593405660627216797654842531274511629653569642299692886172828311393692763888673448649904961093448255338235275199827677176120207648918856430603719199415655962389255227269329528247477565374084254456845493070521764653289529029121531798267980455224152201783074312455247443118659121061166824975283442729765920066115702948819794373441039363621507249342167892877264237554995364981898784098244975928739908684886687169561527095433756282781475277781538970397993742686571201323888405828052948752757923286033258285782682064914566808696556377856800938584299870591049139758903145979548061988835578438108419199725833087967291498589345414792089183496072498118579415411402320500775908443"); - EXPECT_EQ(Expression("sin(sin(E))").approximate(30).toString(), "0.39932574404189139297067052142"); - EXPECT_EQ(Expression("(sqrt(2) + 1)^2").approximate(5).toString(), "5.8284"); - EXPECT_EQ(Expression("E/I").approximate(5).toString(), "-2.7183 I"); - EXPECT_EQ(Expression("E/-I").approximate(5).toString(), "2.7183 I"); - EXPECT_EQ(Expression("x+E").approximate(8).toString(), "x + 2.7182818"); - EXPECT_EQ(Expression("x^(100!)").approximate(8).toString(), "x^(9.3326215*10^157)"); - EXPECT_EQ(Expression("2^200/x").approximate(10).toString(), "(1.606938044*10^60)/x"); - EXPECT_EQ(Expression("x/2^200").approximate(10).toString(), "6.223015278*10^-61 x"); - EXPECT_EQ(Expression("(sqrt(2) - a - 1)^2").approximate(5).toString(), "a^2 - 0.82843 a + 0.17157"); - EXPECT_EQ(Expression("2 sqrt2 sin3 a + 3 ln5 root(2, 3) b").approximate(5).toString(), "0.39915 a + 6.0833 b"); - - EXPECT_EQ(Expression("sin(5)").approximate(100).approximate(5).toString(), "-0.95892"); - EXPECT_EQ(Expression("sin(5) I").approximate(100).approximate(5).toString(), "-0.95892 I"); - EXPECT_EQ(Expression("I + sin(4)").approximate(100).approximate(5).toString(), "-0.7568 + I"); - EXPECT_EQ(Expression("sin(5) I + sin(4)").approximate(100).approximate(5).toString(), "-0.7568 - 0.95892 I"); - - { - Expression expr = Expression("cos(5)").approximate(56); - EXPECT_EQ(expr.toString(), "0.28366218546322626446663917151355730833442259225221594493"); - - expr = expr.approximate(55); - EXPECT_EQ(expr.toString(), "0.2836621854632262644666391715135573083344225922522159449"); - - expr = expr.approximate(1); - EXPECT_EQ(expr.toString(), "0.3"); - } -} - -TEST(ExpressionTests, toMinimalObjectTest) { - EXPECT_TRUE(is(Expression("a").toMinimalObject())); - EXPECT_TRUE(is(Expression("123.123").toMinimalObject())); - EXPECT_TRUE(is(Expression("a+a").toMinimalObject())); } TEST(ExpressionTests, setChildrenTest) { diff --git a/tests/src/overall/approximate/ApproximateTests.cpp b/tests/src/overall/approximate/ApproximateTests.cpp new file mode 100644 index 000000000..aa88eb06e --- /dev/null +++ b/tests/src/overall/approximate/ApproximateTests.cpp @@ -0,0 +1,402 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(ApproximateTests, approximateTest) { + EXPECT_EQ(Expression("150!").approximate().toString(), + "5.7133839564458545904789328652610540031895535786011264182548375833179829124845398*10^262"); + EXPECT_EQ(Expression("E").approximate().toString(), + "2.7182818284590452353602874713526624977572470936999595749669676277240766303535476"); + EXPECT_EQ(Expression("Pi").approximate().toString(), + "3.141592653589793238462643383279502884197169399375105820974944592307816406286209"); + EXPECT_EQ(Expression("exp100").approximate().toString(), + "26881171418161354484126255515800135873611118.773741922415191608615280287034909565"); + EXPECT_EQ(Expression("E^101").approximate().toString(), + "73070599793680672726476826340615135890078390.083960707616445859670987728609198428"); + EXPECT_EQ(Expression("E^(-101)").approximate().toString(), + "1.3685394711738530002470557302322944177986775531612023009807438134142551921153897*10^-44"); + EXPECT_EQ(Expression("ln3").approximate().toString(), + "1.098612288668109691395245236922525704647490557822749451734694333637494293218609"); + EXPECT_EQ(Expression("ln2").approximate().toString(), + "0.69314718055994530941723212145817656807550013436025525412068000949339362196969472"); + EXPECT_EQ(Expression("ln100").approximate().toString(), + "4.605170185988091368035982909368728415202202977257545952066655801935145219354705"); + EXPECT_EQ(Expression("lg99").approximate().toString(), + "1.9956351945975499153402557777532548601069599188478448242562702992902113378005716"); + EXPECT_EQ(Expression("lg100").approximate().toString(), + "2"); + EXPECT_EQ(Expression("lb100").approximate().toString(), + "6.6438561897747246957406388589787803517296627860491612241095127916318695532172504"); + EXPECT_EQ(Expression("lb4").approximate().toString(), + "2"); + EXPECT_EQ(Expression("sin10").approximate().toString(), + "-0.54402111088936981340474766185137728168364301291622389157418401261675720964049343"); + EXPECT_EQ(Expression("cos10").approximate().toString(), + "-0.83907152907645245225886394782406483451993016513316854683595373104879258686627077"); + EXPECT_EQ(Expression("tan10").approximate().toString(), + "0.6483608274590866712591249330098086768168743429837249756336279673958556003746239"); + EXPECT_EQ(Expression("cot10").approximate().toString(), + "1.5423510453569200482774693556824293113206672064019624909194716061981945043136768"); + EXPECT_EQ(Expression("sec10").approximate().toString(), + "-1.1917935066878958108796938984273465902047299220035186727706136445417481901426913"); + EXPECT_EQ(Expression("csc10").approximate().toString(), + "-1.8381639608896655887052365237649145973889020018834973862573493747201515058875292"); + EXPECT_EQ(Expression("asin0.9").approximate().toString(), + "1.1197695149986341866866770558453996158951621864033028823756818639144375371065333"); + EXPECT_EQ(Expression("acos0.9").approximate().toString(), + "0.45102681179626243254464463579435182620342251328425002811179043223947066603657116"); + EXPECT_EQ(Expression("atan10").approximate().toString(), + "1.4711276743037345918528755717617308518553063771832382624719635193438804556955538"); + EXPECT_EQ(Expression("acot10").approximate().toString(), + "0.099668652491162027378446119878020590243278322504314648015508776810027747447550654"); + EXPECT_EQ(Expression("asec10").approximate().toString(), + "1.4706289056333368228857985121870581235299087274579233690964484411175055294922419"); + EXPECT_EQ(Expression("acsc10").approximate().toString(), + "0.10016742116155979634552317945269331856867597222962954139102385503640267365086255"); + EXPECT_EQ(Expression("sinh10").approximate().toString(), + "11013.232874703393377236524554846364402901451190319346103835228548076948583785685"); + EXPECT_EQ(Expression("cosh10").approximate().toString(), + "11013.232920103323139721376090437879963452061428237434970400197807148254234785107"); + EXPECT_EQ(Expression("tanh10").approximate().toString(), + "0.99999999587769276361959283713827574105081461849501996226140069543680188089876683"); + EXPECT_EQ(Expression("coth10").approximate().toString(), + "1.0000000041223072533738241840280803124601800267562193084479187641100667185123807"); + EXPECT_EQ(Expression("sech10").approximate().toString(), + "9.0799859337817244080129507820478187068803766001825381516397080560420174468338146*10^-5"); + EXPECT_EQ(Expression("csch10").approximate().toString(), + "9.0799859712122162833736493607291370367410765671445711489891847505702178459640405*10^-5"); + EXPECT_EQ(Expression("asinh0.9").approximate().toString(), + "0.80886693565278246250935016738160604299699494260611658590774273687832265593746445"); + EXPECT_EQ(Expression("acosh1.9").approximate().toString(), + "1.2571958266003804345446952305599900185447096920846764166114358405852412800661934"); + EXPECT_EQ(Expression("atanh0.9").approximate().toString(), + "1.4722194895832202300045137159439267686186896306495644092689801182046463510320986"); + EXPECT_EQ(Expression("acoth1.9").approximate().toString(), + "0.5850356263251273221963907792584300980997658991386225877261408421838960973503172"); + EXPECT_EQ(Expression("asech0.9").approximate().toString(), + "0.46714530810326201812838149166592294470091920423633277925539967947899330501299865"); + EXPECT_EQ(Expression("acsch1.9").approximate().toString(), + "0.50462466551048371741604715782227695355849782672942308840662278634723539375892107"); + EXPECT_EQ(Expression("((2))*sqrt2").approximate().toString(), + "2.8284271247461900976033774484193961571393437507538961463533594759814649569242141"); + EXPECT_EQ(Expression("sqrt2*((2))").approximate().toString(), + "2.8284271247461900976033774484193961571393437507538961463533594759814649569242141"); + EXPECT_EQ(Expression("sin(1)^2").approximate().toString(), + "0.70807341827357119349878411475038109488300038553777244537757498689098246806203958"); + EXPECT_EQ(Expression("sin(-1)^2").approximate().toString(), + "0.70807341827357119349878411475038109488300038553777244537757498689098246806203958"); + EXPECT_EQ(Expression("sin1^2").approximate().toString(), + "0.70807341827357119349878411475038109488300038553777244537757498689098246806203958"); + EXPECT_EQ(Expression("sin(10^30)").approximate().toString(), + "-0.090116901912138058030386428952987330274396332993043449885460666579773983476795775"); + EXPECT_EQ(Expression("sin(Pi/3)").approximate().toString(), + "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); + EXPECT_EQ(Expression("cos(Pi/3)").approximate().toString(), + "0.5"); + EXPECT_EQ(Expression("2!*E").approximate().toString(), + "5.4365636569180904707205749427053249955144941873999191499339352554481532607070952"); + EXPECT_EQ(Expression("E*2!").approximate().toString(), + "5.4365636569180904707205749427053249955144941873999191499339352554481532607070952"); + EXPECT_EQ(Expression("sqrt((1-cos(2*(Pi/3)))/2)").approximate().toString(), + "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); + EXPECT_EQ(Expression("2*sqrt((1-cos(2*(Pi/3)))/2)*cos(Pi/3)").approximate().toString(), + "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); + EXPECT_EQ(Expression("1/(sin(5))").approximate().toString(), + "-1.0428352127714058197831198559077598439723517523645461744044708582222288573346961"); + EXPECT_EQ(Expression("sin(60deg)").approximate().toString(), + "0.86602540378443864676372317075293618347140262690519031402790348972596650845440002"); + EXPECT_EQ(Expression("log(500!, 500! + 1)").approximate().toString(), "1.0"); + + EXPECT_EQ(Expression("E^(E^(E^(E^(E^E))))").approximate().toString(), + "2.7182818284590452353602874713526624977572470936999595749669676277240766303535476^(2." + "7182818284590452353602874713526624977572470936999595749669676277240766303535476^(2." + "3315043990071954622896899110121376663320174289635168232800545468180794366424973*10^1656520))"); + + EXPECT_EQ(Expression("sin(floor(E^10))").approximate().toString(), + "-0.28969263040207500615366554669422425489060452363910610917250538601423874640051459"); + EXPECT_EQ(Expression("sin(ceil(E^10))").approximate().toString(), + "-0.96191007900804641383913232250486113391226136975674660918707766984049730795121162"); + EXPECT_EQ(Expression("cos(floor(11^10))").approximate().toString(), + "-0.4398324432476489878621537810397255512584110903388962591029029773506989984056853"); + EXPECT_EQ(Expression("cos(ceil(11^10))").approximate().toString(), + "-0.4398324432476489878621537810397255512584110903388962591029029773506989984056853"); + EXPECT_EQ(Expression("ln(floor(E^10))").approximate().toString(), + "9.9999788527248892938130978462467834105024172271892998574080180654845967473754541"); + EXPECT_EQ(Expression("root(ceil(E^10), 3)").approximate().toString(), + "28.031851508556071101342707542030481102710581537531050303928482414307208991692382"); + EXPECT_EQ(Expression("ln(floor(11^10))").approximate().toString(), + "23.978952727983705440619435779651292998217068539374171752185677091305736239132367"); + EXPECT_EQ(Expression("root(ceil(11^10), 3)").approximate().toString(), + "2960.117500547758958671098654417191228566388539497004587135829271326993708483441"); + + EXPECT_EQ(Expression("(2/3)!").approximate().toString(), + "0.90274529295093361129685868543634252367955151070452913226268164530918864360116169"); + EXPECT_EQ(Expression("E!").approximate().toString(), + "4.2608204763570033817001212246457024649334243739593219749116048935993443487275001"); + EXPECT_EQ(Expression("(2/3)!!").approximate().toString(), + "0.66666666666666666666666666666666666666666666666666666666666666666666666666666667!!"); + EXPECT_EQ(Expression("(1/1000000000000000000000000000000000000000)!!").approximate().toString(), + "(1.0*10^-39)!!"); + EXPECT_EQ(Expression("(-1)!!").approximate().toString(), + "(-1)!!"); + + EXPECT_EQ(Expression("I").approximate().toString(), + "I"); + EXPECT_EQ(Expression("5 + I").approximate().toString(), + "5 + I"); + EXPECT_EQ(Expression("5 I").approximate().toString(), + "5 I"); + EXPECT_EQ(Expression("5 + 5 I").approximate().toString(), + "5 + 5 I"); + EXPECT_EQ(Expression("5/2 + 1/2 I").approximate().toString(), + "2.5 + 0.5 I"); + EXPECT_EQ(Expression("5 + 1/2 I").approximate().toString(), + "5 + 0.5 I"); + EXPECT_EQ(Expression("5/2 + 2 I").approximate().toString(), + "2.5 + 2 I"); + EXPECT_EQ(Expression("5/I").approximate().toString(), + "-5 I"); + EXPECT_EQ(Expression("E/I").approximate().toString(), + "-2.7182818284590452353602874713526624977572470936999595749669676277240766303535476 I"); + EXPECT_EQ(Expression("-I").approximate().toString(), + "-I"); + EXPECT_EQ(Expression("5 - I").approximate().toString(), + "5 - I"); + EXPECT_EQ(Expression("5 - I").approximate().toString(), + "5 - I"); + EXPECT_EQ(Expression("5 - 5 I").approximate().toString(), + "5 - 5 I"); + EXPECT_EQ(Expression("5/2 - 1/2 I").approximate().toString(), + "2.5 - 0.5 I"); + EXPECT_EQ(Expression("5 - 1/2 I").approximate().toString(), + "5 - 0.5 I"); + EXPECT_EQ(Expression("5/2 - 2 I").approximate().toString(), + "2.5 - 2 I"); + EXPECT_EQ(Expression("5/-I").approximate().toString(), + "5 I"); + EXPECT_EQ(Expression("E/-I").approximate().toString(), + "2.7182818284590452353602874713526624977572470936999595749669676277240766303535476 I"); + EXPECT_EQ(Expression("sin(I)").approximate().toString(), + "sin(I)"); + EXPECT_EQ(Expression("sin(5 + I)").approximate().toString(), + "sin(5 + I)"); + EXPECT_EQ(Expression("sin(5/2 + 1/2 I)").approximate().toString(), + "sin(2.5 + 0.5 I)"); + EXPECT_EQ(Expression("ln(I + 1)").approximate().toString(), + "ln(1 + I)"); + + EXPECT_EQ(Expression("ln(x)").approximate().toString(), + "ln(x)"); + EXPECT_EQ(Expression("lb(x)").approximate().toString(), + "log(2, x)"); + EXPECT_EQ(Expression("sqrt(x)").approximate().toString(), + "sqrt(x)"); + EXPECT_EQ(Expression("root(x, 3)").approximate().toString(), + "root(x, 3)"); + EXPECT_EQ(Expression("root(x, 10)").approximate().toString(), + "x^0.1"); + EXPECT_EQ(Expression("root(x, 33)").approximate().toString(), + "x^0.03030303030303030303030303030303030303030303030303030303030303030303030303030303"); + + EXPECT_EQ(Expression("ln(9/40) a + 1 > 0").approximate().toString(), + "a - 0.67039636015551187562980441234433718448357469016083894454851276080981791123695912 < 0"); + EXPECT_EQ(Expression("-a + Pi^4 sqrt(2) a < 0").approximate().toString(), + "a < 0"); + EXPECT_EQ(Expression("-a + Pi^4 sqrt(2) a - sqrt(3) a < 0").approximate().toString(), + "a < 0"); + EXPECT_EQ(Expression("-a + Pi^4 sqrt(2) a - sqrt(3) a + 1 < 0").approximate().toString(), + "a + 0.0074060245747335632557466509014062540940313639927954137165613831918681276157723614 < 0"); +} + +TEST(ApproximateTests, approxamateSpecialValuesTest) { + EXPECT_EQ(Expression("1 / (1 - tanh(11^10))").approximate().toString(), "cosh(25937424601)/(cosh(25937424601) - sinh(25937424601))"); + EXPECT_EQ(Expression("1 / (1 - coth(11^10))").approximate().toString(), "sinh(25937424601)/(sinh(25937424601) - cosh(25937424601))"); + EXPECT_EQ(Expression("1 / (ln(2)^10000000000000)").approximate().approximate().toString(), "1/0.0"); + + EXPECT_EQ(Expression("sqr(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("root(ln(2)^10000000000000, 3)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("sin(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("cos(ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("tan(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("cot(ln(2)^10000000000000)").approximate().toString(), "cot(0.0)"); + EXPECT_EQ(Expression("sec(ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("csc(ln(2)^10000000000000)").approximate().toString(), "csc(0.0)"); + EXPECT_EQ(Expression("asin(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("acos(ln(2)^10000000000000)").approximate().toString(), "1.5707963267948966192313216916397514420985846996875529104874722961539082031431045"); + EXPECT_EQ(Expression("atan(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("acot(ln(2)^10000000000000)").approximate().toString(), "acot(0.0)"); + EXPECT_EQ(Expression("asec(ln(2)^10000000000000)").approximate().toString(), "asec(0.0)"); + EXPECT_EQ(Expression("acsc(ln(2)^10000000000000)").approximate().toString(), "acsc(0.0)"); + EXPECT_EQ(Expression("sinh(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("cosh(ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("tanh(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("coth(ln(2)^10000000000000)").approximate().toString(), "coth(0.0)"); + EXPECT_EQ(Expression("sech(ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("csch(ln(2)^10000000000000)").approximate().toString(), "csch(0.0)"); + EXPECT_EQ(Expression("asinh(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("acosh(ln(2)^10000000000000)").approximate().toString(), "acosh(0.0)"); + EXPECT_EQ(Expression("atanh(ln(2)^10000000000000)").approximate().toString(), "0.0"); + EXPECT_EQ(Expression("acoth(ln(2)^10000000000000)").approximate().toString(), "acoth(0.0)"); + EXPECT_EQ(Expression("asech(ln(2)^10000000000000)").approximate().toString(), "asech(0.0)"); + EXPECT_EQ(Expression("acsch(ln(2)^10000000000000)").approximate().toString(), "acsch(0.0)"); + + EXPECT_EQ(Expression("sqrt(-ln(2)^10000000000000)").approximate().toString(), "sqrt(-0.0)"); + EXPECT_EQ(Expression("root(-ln(2)^10000000000000, 3)").approximate().toString(), "root(-0.0, 3)"); + EXPECT_EQ(Expression("sin(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("cos(-ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("tan(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("cot(-ln(2)^10000000000000)").approximate().toString(), "-cot(0.0)"); + EXPECT_EQ(Expression("sec(-ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("csc(-ln(2)^10000000000000)").approximate().toString(), "-csc(0.0)"); + EXPECT_EQ(Expression("asin(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("acos(-ln(2)^10000000000000)").approximate().toString(), "1.5707963267948966192313216916397514420985846996875529104874722961539082031431045"); + EXPECT_EQ(Expression("atan(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("acot(-ln(2)^10000000000000)").approximate().toString(), "acot(-0.0)"); + EXPECT_EQ(Expression("asec(-ln(2)^10000000000000)").approximate().toString(), "asec(-0.0)"); + EXPECT_EQ(Expression("acsc(-ln(2)^10000000000000)").approximate().toString(), "acsc(-0.0)"); + EXPECT_EQ(Expression("sinh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("cosh(-ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("tanh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("coth(-ln(2)^10000000000000)").approximate().toString(), "-coth(0.0)"); + EXPECT_EQ(Expression("sech(-ln(2)^10000000000000)").approximate().toString(), "1.0"); + EXPECT_EQ(Expression("csch(-ln(2)^10000000000000)").approximate().toString(), "-csch(0.0)"); + EXPECT_EQ(Expression("asinh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("acosh(-ln(2)^10000000000000)").approximate().toString(), "acosh(-0.0)"); + EXPECT_EQ(Expression("atanh(-ln(2)^10000000000000)").approximate().toString(), "-0.0"); + EXPECT_EQ(Expression("acoth(-ln(2)^10000000000000)").approximate().toString(), "acoth(-0.0)"); + EXPECT_EQ(Expression("asech(-ln(2)^10000000000000)").approximate().toString(), "asech(-0.0)"); + EXPECT_EQ(Expression("acsch(-ln(2)^10000000000000)").approximate().toString(), "acsch(-0.0)"); + + EXPECT_EQ(Expression("floor(ln(2)^10000000000000)").approximate().toString(), "floor(0.0)"); + EXPECT_EQ(Expression("ceil(ln(2)^10000000000000)").approximate().toString(), "ceil(0.0)"); + EXPECT_EQ(Expression("sign(ln(2)^10000000000000)").approximate().toString(), "1"); + EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000)").approximate().toString(), "-ceil(-1.0)"); + EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000)").approximate().toString(), "-floor(-1.0)"); + EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000)").approximate().toString(), "1"); + + EXPECT_EQ(Expression("floor(ln(2)^10000000000000 * sin(4))").approximate().toString(), "floor(-0.0)"); + EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 * sin(4))").approximate().toString(), "ceil(-0.0)"); + EXPECT_EQ(Expression("sign(ln(2)^10000000000000 * sin(4))").approximate().toString(), "-1"); + EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 * sin(4))").approximate().toString(), "-ceil(-1.0)"); + EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 * sin(4))").approximate().toString(), "-floor(-1.0)"); + EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 * sin(4))").approximate().toString(), "1"); + + EXPECT_EQ(Expression("floor(ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "floor(-0.0)"); + EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "ceil(-0.0)"); + EXPECT_EQ(Expression("sign(ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "-1"); + EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "-ceil(-1.0)"); + EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "-floor(-1.0)"); + EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 * (sin(4) + 1 - 1))").approximate().toString(), "1"); + + EXPECT_EQ(Expression("floor(ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "floor(-0.0)"); + EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "ceil(-0.0)"); + EXPECT_EQ(Expression("sign(ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "-1"); + EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "-ceil(-1.0)"); + EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "-floor(-1.0)"); + EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 * (2sin(4) - sin(4)))").approximate().toString(), "1"); + + EXPECT_EQ(Expression("floor(ln(2)^10000000000000 / sin(4))").approximate().toString(), "floor(-0.0)"); + EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 / sin(4))").approximate().toString(), "ceil(-0.0)"); + EXPECT_EQ(Expression("sign(ln(2)^10000000000000 / sin(4))").approximate().toString(), "-1"); + EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 / sin(4))").approximate().toString(), "-ceil(-1.0)"); + EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 / sin(4))").approximate().toString(), "-floor(-1.0)"); + EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 / sin(4))").approximate().toString(), "1"); + + EXPECT_EQ(Expression("floor(ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "floor(-0.0)"); + EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "ceil(-0.0)"); + EXPECT_EQ(Expression("sign(ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "-1"); + EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "-ceil(-1.0)"); + EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "-floor(-1.0)"); + EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 / (sin(4) + 1 - 1))").approximate().toString(), "1"); + + EXPECT_EQ(Expression("floor(ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "floor(-0.0)"); + EXPECT_EQ(Expression("ceil(ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "ceil(-0.0)"); + EXPECT_EQ(Expression("sign(ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "-1"); + EXPECT_EQ(Expression("floor(1 - ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "-ceil(-1.0)"); + EXPECT_EQ(Expression("ceil(1 - ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "-floor(-1.0)"); + EXPECT_EQ(Expression("sign(1 - ln(2)^10000000000000 / (2sin(4) - sin(4)))").approximate().toString(), "1"); + + EXPECT_EQ(Expression("ln(2)^10000000000000 = 0").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 != 0").approximate().toString(), "True"); + EXPECT_EQ(Expression("ln(2)^10000000000000 < 0").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 > 0").approximate().toString(), "True"); + EXPECT_EQ(Expression("ln(2)^10000000000000 <= 0").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 >= 0").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 = 0").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 != 0").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 < 0").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 > 0").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 <= 0").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 >= 0").approximate().toString(), "False"); + + EXPECT_EQ(Expression("ln(2)^10000000000000 = ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 != ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("ln(2)^10000000000000 < ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("ln(2)^10000000000000 > ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 <= ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("ln(2)^10000000000000 >= ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 = ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 != ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 < ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 > ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 <= ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 >= ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 = -ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 != -ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("ln(2)^10000000000000 < -ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 > -ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("ln(2)^10000000000000 <= -ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("ln(2)^10000000000000 >= -ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 = -ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 != -ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 < -ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 > -ln(2)^100000000").approximate().toString(), "True"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 <= -ln(2)^100000000").approximate().toString(), "False"); + EXPECT_EQ(Expression("-ln(2)^10000000000000 >= -ln(2)^100000000").approximate().toString(), "True"); +} + +TEST(ApproximateTests, approximateWithPrecisionTest) { + EXPECT_EQ(Expression("123").approximate(2).toString(), "1.2*10^2"); + EXPECT_EQ(Expression("123").approximate(3).toString(), "123"); + EXPECT_EQ(Expression("999").approximate(2).toString(), "1.0*10^3"); + EXPECT_EQ(Expression("999").approximate(3).toString(), "999"); + EXPECT_EQ(Expression("1000").approximate(3).toString(), "1.0*10^3"); + EXPECT_EQ(Expression("1000").approximate(4).toString(), "1000"); + EXPECT_EQ(Expression("2/3").approximate(0).toString(), "0.7"); + EXPECT_EQ(Expression("2/3").approximate(1).toString(), "0.7"); + EXPECT_EQ(Expression("2/3").approximate(2).toString(), "0.67"); + EXPECT_EQ(Expression("10^10000").approximate(8).toString(), "1.0*10^10000"); + EXPECT_EQ(Expression("9^10000").approximate(8).toString(), "2.6613034*10^9542"); + EXPECT_EQ(Expression("sin(E)").approximate(16).toString(), "0.4107812905029087"); + EXPECT_EQ(Expression("sin(E)").approximate(100).toString(), "0.4107812905029086954760094920183605918883069703934153453045716588061351824376549958759786190454355935"); + EXPECT_EQ(Expression("sin(E)").approximate(500).toString(), "0.41078129050290869547600949201836059188830697039341534530457165880613518243765499587597861904543559353998291725993302611025612058214980807451386832166444404531330197030068700843779775501870429268806003976547248700619445558784780526262698913892212813629990839737608068439105974107056580477820375774780424366945910698422961638162689359340566062721679765484253127451162965356964229969288617282831139369276388867344864990496109344825533823527519982767717612020764891885643060371919941565596238925522726933"); + EXPECT_EQ(Expression("sin(E)").approximate(1000).toString(), "0.410781290502908695476009492018360591888306970393415345304571658806135182437654995875978619045435593539982917259933026110256120582149808074513868321664444045313301970300687008437797755018704292688060039765472487006194455587847805262626989138922128136299908397376080684391059741070565804778203757747804243669459106984229616381626893593405660627216797654842531274511629653569642299692886172828311393692763888673448649904961093448255338235275199827677176120207648918856430603719199415655962389255227269329528247477565374084254456845493070521764653289529029121531798267980455224152201783074312455247443118659121061166824975283442729765920066115702948819794373441039363621507249342167892877264237554995364981898784098244975928739908684886687169561527095433756282781475277781538970397993742686571201323888405828052948752757923286033258285782682064914566808696556377856800938584299870591049139758903145979548061988835578438108419199725833087967291498589345414792089183496072498118579415411402320500775908443"); + EXPECT_EQ(Expression("sin(sin(E))").approximate(30).toString(), "0.39932574404189139297067052142"); + EXPECT_EQ(Expression("(sqrt(2) + 1)^2").approximate(5).toString(), "5.8284"); + EXPECT_EQ(Expression("E/I").approximate(5).toString(), "-2.7183 I"); + EXPECT_EQ(Expression("E/-I").approximate(5).toString(), "2.7183 I"); + EXPECT_EQ(Expression("x+E").approximate(8).toString(), "x + 2.7182818"); + EXPECT_EQ(Expression("x^(100!)").approximate(8).toString(), "x^(9.3326215*10^157)"); + EXPECT_EQ(Expression("2^200/x").approximate(10).toString(), "(1.606938044*10^60)/x"); + EXPECT_EQ(Expression("x/2^200").approximate(10).toString(), "6.223015278*10^-61 x"); + EXPECT_EQ(Expression("(sqrt(2) - a - 1)^2").approximate(5).toString(), "a^2 - 0.82843 a + 0.17157"); + EXPECT_EQ(Expression("2 sqrt2 sin3 a + 3 ln5 root(2, 3) b").approximate(5).toString(), "0.39915 a + 6.0833 b"); + + EXPECT_EQ(Expression("sin(5)").approximate(100).approximate(5).toString(), "-0.95892"); + EXPECT_EQ(Expression("sin(5) I").approximate(100).approximate(5).toString(), "-0.95892 I"); + EXPECT_EQ(Expression("I + sin(4)").approximate(100).approximate(5).toString(), "-0.7568 + I"); + EXPECT_EQ(Expression("sin(5) I + sin(4)").approximate(100).approximate(5).toString(), "-0.7568 - 0.95892 I"); + + { + Expression expr = Expression("cos(5)").approximate(56); + EXPECT_EQ(expr.toString(), "0.28366218546322626446663917151355730833442259225221594493"); + + expr = expr.approximate(55); + EXPECT_EQ(expr.toString(), "0.2836621854632262644666391715135573083344225922522159449"); + + expr = expr.approximate(1); + EXPECT_EQ(expr.toString(), "0.3"); + } +} diff --git a/tests/src/overall/simplify/SimplifyComparisonsTests.cpp b/tests/src/overall/simplify/SimplifyComparisonsTests.cpp new file mode 100644 index 000000000..d08150502 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyComparisonsTests.cpp @@ -0,0 +1,92 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyComparisonsTests, simplifyTest) { + EXPECT_EQ(Expression("a=a").toString(), + "True"); + EXPECT_EQ(Expression("a+a=2*a").toString(), + "True"); + EXPECT_EQ(Expression("a=b").toString(), + "a - b = 0"); + EXPECT_EQ(Expression("a!=a").toString(), + "False"); + EXPECT_EQ(Expression("a+a!=2*a").toString(), + "False"); + EXPECT_EQ(Expression("a!=b").toString(), + "a - b != 0"); + EXPECT_EQ(Expression("x<6").toString(), + "x - 6 < 0"); + EXPECT_EQ(Expression("x<=6").toString(), + "x - 6 <= 0"); + EXPECT_EQ(Expression("x>6").toString(), + "x - 6 > 0"); + EXPECT_EQ(Expression("x>=6").toString(), + "x - 6 >= 0"); + EXPECT_EQ(Expression("(5+5)=(2*5)").toString(), + "True"); + EXPECT_EQ(Expression("((((5+5)=(2*5))))").toString(), + "True"); + EXPECT_EQ(Expression("((1*1))(5+5)=((2*5)/(1/1))").toString(), + "True"); + EXPECT_EQ(Expression("-x - 10 = 0").toString(), + "x + 10 = 0"); + EXPECT_EQ(Expression("2x = 0").toString(), + "x = 0"); + EXPECT_EQ(Expression("2x - 10 = 0").toString(), + "x - 5 = 0"); + EXPECT_EQ(Expression("-a > 0").toString(), + "a < 0"); + EXPECT_EQ(Expression("-2a + 5 > 6").toString(), + "a + 1/2 < 0"); + EXPECT_EQ(Expression("-2a+5>6").toString(), + "a + 1/2 < 0"); + EXPECT_EQ(Expression("-6x^2 + 4x - 20 = 15x - 9").toString(), + "x^2 + (11 x)/6 + 11/6 = 0"); + EXPECT_EQ(Expression("2 a^5 b - 4 a b^5 = 0").toString(), + "a^5 b - 2 a b^5 = 0"); + EXPECT_EQ(Expression("-2 a^5 b + 4 a b^5 = 0").toString(), + "a^5 b - 2 a b^5 = 0"); + + EXPECT_EQ(Expression("sin(E)=sin(E)").toString(), + "True"); + EXPECT_EQ(Expression("sin(E)>sin(E)").toString(), + "False"); + EXPECT_EQ(Expression("sin(E)>=sin(E)").toString(), + "True"); + EXPECT_EQ(Expression("sin(E)ln(5)").toString(), + "False"); + EXPECT_EQ(Expression("log(E,5)<=ln(5)").toString(), + "True"); + EXPECT_EQ(Expression("log(E,5)>=ln(5)").toString(), + "True"); + EXPECT_EQ(Expression("log(1deg, (1deg)^(1deg)) = 1deg").toString(), + "True"); + EXPECT_EQ(Expression("E^Pi > Pi^E").toString(), + "True"); + EXPECT_EQ(Expression("Pi^E < E^Pi").toString(), + "True"); + EXPECT_EQ(Expression("log(floor(E), E) = lb(E)").toString(), + "True"); + + EXPECT_EQ(Expression("I! > 0").toString(), + "I! > 0"); + EXPECT_EQ(Expression("Inf mod 2 > 0").toString(), + "Inf mod 2 > 0"); + EXPECT_EQ(Expression("Inf! - 1 = 0").toString(), + "Inf! - 1 = 0"); + EXPECT_EQ(Expression("Inf - 1 > 0").toString(), + "Inf > 0"); + EXPECT_EQ(Expression("Pi!! - Pi > 0").toString(), + "Pi!! - Pi > 0"); +} diff --git a/tests/src/overall/simplify/SimplifyComplexNumbersTests.cpp b/tests/src/overall/simplify/SimplifyComplexNumbersTests.cpp new file mode 100644 index 000000000..b95cbe338 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyComplexNumbersTests.cpp @@ -0,0 +1,271 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyComplexNumbersTests, simplifyTest) { + EXPECT_EQ(Expression("(1 + 2I) + (2 + 3I)").toString(), + "3 + 5 I"); + EXPECT_EQ(Expression("(1 + 2I) - (2 + 3I)").toString(), + "-1 - I"); + EXPECT_EQ(Expression("(1 + 2I) * (2 + 3I)").toString(), + "-4 + 7 I"); + EXPECT_EQ(Expression("(1 + 2I) / (2 + 3I)").toString(), + "8/13 + 1/13 I"); + EXPECT_EQ(Expression("-(2 + 3I)").toString(), + "-2 - 3 I"); + EXPECT_EQ(Expression("+(2 + 3I)").toString(), + "2 + 3 I"); + + EXPECT_EQ(Expression("(-5 + 2I)^0").toString(), + "1"); + EXPECT_EQ(Expression("(-5 + 2I)^1").toString(), + "-5 + 2 I"); + EXPECT_EQ(Expression("(-5 + 2I)^2").toString(), + "21 - 20 I"); + EXPECT_EQ(Expression("(-5 + 2I)^3").toString(), + "-65 + 142 I"); + EXPECT_EQ(Expression("(-5 + 2I)^4").toString(), + "41 - 840 I"); + EXPECT_EQ(Expression("(-5 + 2I)^5").toString(), + "1475 + 4282 I"); + EXPECT_EQ(Expression("(-5 + 2I)^6").toString(), + "-15939 - 18460 I"); + EXPECT_EQ(Expression("(-5 + 2I)^7").toString(), + "116615 + 60422 I"); + EXPECT_EQ(Expression("(-5 + 2I)^8").toString(), + "-703919 - 68880 I"); + EXPECT_EQ(Expression("(-5 + 2I)^32").toString(), + "231439382100320515840321 + 95179357018581597343680 I"); + EXPECT_EQ(Expression("(-5 + 2I)^-1").toString(), + "-5/29 - 2/29 I"); + EXPECT_EQ(Expression("(-5 + 2I)^-5").toString(), + "1475/20511149 - 4282/20511149 I"); + EXPECT_EQ(Expression("(-5 + 2I)^-6").toString(), + "-15939/594823321 + 18460/594823321 I"); + EXPECT_EQ(Expression("(-5 + 2I)^-32").toString(), + "231439382100320515840321/62623297589448778360828428329074752308805325441 - 95179357018581597343680/62623297589448778360828428329074752308805325441 I"); + + EXPECT_EQ(Expression("sqrt(-1)").toString(), + "I"); + EXPECT_EQ(Expression("sqrt(-4) - 5").toString(), + "-5 + 2 I"); + // TODO: implement + EXPECT_EQ(Expression("root(-1, 3)").toString(), + "root(-1, 3)"); + EXPECT_EQ(Expression("root(-1, 4)").toString(), + "root(-1, 4)"); + EXPECT_EQ(Expression("root(-1, 5)").toString(), + "root(-1, 5)"); + EXPECT_EQ(Expression("root(-1, 6)").toString(), + "root(-1, 6)"); + EXPECT_EQ(Expression("root(-1, 7)").toString(), + "root(-1, 7)"); + EXPECT_EQ(Expression("(-1)^(3/2)").toString(), + "(-1)^(3/2)"); + EXPECT_EQ(Expression("(-1)^(2/3)").toString(), + "(-1)^(2/3)"); + EXPECT_EQ(Expression("(-1)^(3/4)").toString(), + "(-1)^(3/4)"); + EXPECT_EQ(Expression("(-1)^(4/5)").toString(), + "(-1)^(4/5)"); + EXPECT_EQ(Expression("(-1)^(5/6)").toString(), + "(-1)^(5/6)"); + EXPECT_EQ(Expression("(-1)^(6/7)").toString(), + "(-1)^(6/7)"); + EXPECT_EQ(Expression("sqrt(-3) sqrt(-3)").toString(), + "-3"); + EXPECT_EQ(Expression("sqrt(-3) sqrt(-2)").toString(), + "-sqrt(6)"); + EXPECT_EQ(Expression("sqrt(I+1) sqrt(I+1)").toString(), + "1 + I"); + EXPECT_EQ(Expression("sqrt(I+1) sqrt(I)").toString(), + "sqrt(1 + I) sqrt(I)"); + EXPECT_EQ(Expression("root(-3, 3) root(-3, 3)").toString(), + "(-3)^(2/3)"); + EXPECT_EQ(Expression("root(-3, 3) root(-2, 3)").toString(), + "root(-2, 3) root(-3, 3)"); + EXPECT_EQ(Expression("root(I+1, 3) root(I+1, 3)").toString(), + "(1 + I)^(2/3)"); + EXPECT_EQ(Expression("root(I+1, 3) root(I, 3)").toString(), + "root(1 + I, 3) root(I, 3)"); + + // TODO: implement + EXPECT_EQ(Expression("ln(-1)").toString(), + "ln(-1)"); + EXPECT_EQ(Expression("lb(-1)").toString(), + "log(2, -1)"); + EXPECT_EQ(Expression("lg(-1)").toString(), + "log(10, -1)"); + + // TODO: implement + EXPECT_EQ(Expression("asin(2)").toString(), + "asin(2)"); + EXPECT_EQ(Expression("acos(2)").toString(), + "acos(2)"); + + EXPECT_EQ(Expression("abs(I)").toString(), + "1"); + EXPECT_EQ(Expression("abs(I + 1)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("abs(3I + 2)").toString(), + "sqrt(13)"); + + EXPECT_EQ(Expression("sign(I)").toString(), + "I"); + EXPECT_EQ(Expression("sign(I + 1)").toString(), + "((1 + I) sqrt(2))/2"); + EXPECT_EQ(Expression("sign(3I + 2)").toString(), + "((2 + 3 I) sqrt(13))/13"); + + // TODO: implement + EXPECT_EQ(Expression("sin(I + 1)").toString(), + "sin(1 + I)"); + EXPECT_EQ(Expression("cos(I + 1)").toString(), + "cos(1 + I)"); + EXPECT_EQ(Expression("tan(I + 1)").toString(), + "tan(1 + I)"); + EXPECT_EQ(Expression("cot(I + 1)").toString(), + "cot(1 + I)"); + EXPECT_EQ(Expression("sec(I + 1)").toString(), + "sec(1 + I)"); + EXPECT_EQ(Expression("csc(I + 1)").toString(), + "csc(1 + I)"); + EXPECT_EQ(Expression("asin(I + 1)").toString(), + "asin(1 + I)"); + EXPECT_EQ(Expression("acos(I + 1)").toString(), + "acos(1 + I)"); + EXPECT_EQ(Expression("atan(I + 1)").toString(), + "atan(1 + I)"); + EXPECT_EQ(Expression("acot(I + 1)").toString(), + "acot(1 + I)"); + EXPECT_EQ(Expression("asec(I + 1)").toString(), + "asec(1 + I)"); + EXPECT_EQ(Expression("acsc(I + 1)").toString(), + "acsc(1 + I)"); + EXPECT_EQ(Expression("sinh(I + 1)").toString(), + "sinh(1 + I)"); + EXPECT_EQ(Expression("cosh(I + 1)").toString(), + "cosh(1 + I)"); + EXPECT_EQ(Expression("tanh(I + 1)").toString(), + "tanh(1 + I)"); + EXPECT_EQ(Expression("coth(I + 1)").toString(), + "coth(1 + I)"); + EXPECT_EQ(Expression("sech(I + 1)").toString(), + "sech(1 + I)"); + EXPECT_EQ(Expression("csch(I + 1)").toString(), + "csch(1 + I)"); + EXPECT_EQ(Expression("asinh(I + 1)").toString(), + "asinh(1 + I)"); + EXPECT_EQ(Expression("acosh(I + 1)").toString(), + "acosh(1 + I)"); + EXPECT_EQ(Expression("atanh(I + 1)").toString(), + "atanh(1 + I)"); + EXPECT_EQ(Expression("acoth(I + 1)").toString(), + "acoth(1 + I)"); + EXPECT_EQ(Expression("asech(I + 1)").toString(), + "asech(1 + I)"); + EXPECT_EQ(Expression("acsch(I + 1)").toString(), + "acsch(1 + I)"); + + EXPECT_EQ(Expression("sqrt(3) (2/3 + 1/2 I)").toString(), + "((4 + 3 I) sqrt(3))/6"); + EXPECT_EQ(Expression("I / x").toString(), + "I/x"); + EXPECT_EQ(Expression("-I / x").toString(), + "-I/x"); + EXPECT_EQ(Expression("2I / x").toString(), + "(2 I)/x"); + EXPECT_EQ(Expression("-2I / x").toString(), + "-(2 I)/x"); + EXPECT_EQ(Expression("(5/6 I) x").toString(), + "(5 I x)/6"); + EXPECT_EQ(Expression("(5/6 I + 2/7) x").toString(), + "((12 + 35 I) x)/42"); + EXPECT_EQ(Expression("(5/6 I + 2) x").toString(), + "((12 + 5 I) x)/6"); + EXPECT_EQ(Expression("(5 I + 2/7) x").toString(), + "((2 + 35 I) x)/7"); + EXPECT_EQ(Expression("(5/6 I) / x").toString(), + "(5 I)/(6 x)"); + EXPECT_EQ(Expression("(5/6 I + 2/7) / x").toString(), + "(12 + 35 I)/(42 x)"); + EXPECT_EQ(Expression("(5/6 I + 2) / x").toString(), + "(12 + 5 I)/(6 x)"); + EXPECT_EQ(Expression("(5 I + 2/7) / x").toString(), + "(2 + 35 I)/(7 x)"); + EXPECT_EQ(Expression("x / (5/6 I)").toString(), + "-(6 I x)/5"); + EXPECT_EQ(Expression("x / (5/6 I + 2/7)").toString(), + "((504 - 1470 I) x)/1369"); + EXPECT_EQ(Expression("x / (5/6 I + 2)").toString(), + "((72 - 30 I) x)/169"); + EXPECT_EQ(Expression("x / (5 I + 2/7)").toString(), + "((14 - 245 I) x)/1229"); + + EXPECT_EQ(Expression("I = I").toString(), + "True"); + EXPECT_EQ(Expression("I = 2 I").toString(), + "False"); + EXPECT_EQ(Expression("I = I x").toString(), + "x - 1 = 0"); + EXPECT_EQ(Expression("I x = I").toString(), + "x - 1 = 0"); + + EXPECT_EQ(Expression("I != I").toString(), + "False"); + EXPECT_EQ(Expression("I != 2 I").toString(), + "True"); + EXPECT_EQ(Expression("I != I x").toString(), + "x - 1 != 0"); + EXPECT_EQ(Expression("I x != I").toString(), + "x - 1 != 0"); + + EXPECT_EQ(Expression("I < I").toString(), + "I < I"); + EXPECT_EQ(Expression("I < 2 I").toString(), + "I < 2 I"); + EXPECT_EQ(Expression("I < I x").toString(), + "I < I x"); + EXPECT_EQ(Expression("I x < I").toString(), + "I x < I"); + + EXPECT_EQ(Expression("I > I").toString(), + "I > I"); + EXPECT_EQ(Expression("I > 2 I").toString(), + "I > 2 I"); + EXPECT_EQ(Expression("I x > I").toString(), + "I x > I"); + + EXPECT_EQ(Expression("I <= I").toString(), + "I <= I"); + EXPECT_EQ(Expression("I <= 2 I").toString(), + "I <= 2 I"); + EXPECT_EQ(Expression("I <= I x").toString(), + "I <= I x"); + EXPECT_EQ(Expression("I x <= I").toString(), + "I x <= I"); + + EXPECT_EQ(Expression("I >= I").toString(), + "I >= I"); + EXPECT_EQ(Expression("I >= 2 I").toString(), + "I >= 2 I"); + EXPECT_EQ(Expression("I >= I x").toString(), + "I >= I x"); + EXPECT_EQ(Expression("I x >= I").toString(), + "I x >= I"); + + EXPECT_EQ(Expression("2 I = E").toString(), + "False"); + EXPECT_EQ(Expression("2 I > E").toString(), + "2 I > E"); + EXPECT_EQ(Expression("E = 2 I").toString(), + "False"); + EXPECT_EQ(Expression("E > 2 I").toString(), + "E > 2 I"); + EXPECT_EQ(Expression("2 I + 3 = 0").toString(), + "False"); + EXPECT_EQ(Expression("2 I + E > 0").toString(), + "E + 2 I > 0"); +} diff --git a/tests/src/overall/simplify/SimplifyDerivativesTests.cpp b/tests/src/overall/simplify/SimplifyDerivativesTests.cpp new file mode 100644 index 000000000..6572a9a94 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyDerivativesTests.cpp @@ -0,0 +1,312 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyDerivativesTests, simplifyTest) { + EXPECT_EQ(Expression("derivative(2, x)").toString(), + "0"); + EXPECT_EQ(Expression("derivative(2 + I, x)").toString(), + "0"); + EXPECT_EQ(Expression("derivative(E, x)").toString(), + "0"); + EXPECT_EQ(Expression("derivative(x, x)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x, y)").toString(), + "0"); + EXPECT_EQ(Expression("derivative(x_1, x_1)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x_1, x_2)").toString(), + "0"); + EXPECT_EQ(Expression("derivative(-x, x)").toString(), + "-1"); + EXPECT_EQ(Expression("derivative(x + y, x)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x + 2, x)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x + (2+I), x)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x - y, x)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x - 2, x)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x - (2+I), x)").toString(), + "1"); + EXPECT_EQ(Expression("derivative(x * y, x)").toString(), + "y"); + EXPECT_EQ(Expression("derivative(x * 2, x)").toString(), + "2"); + EXPECT_EQ(Expression("derivative(x * (2+I), x)").toString(), + "2 + I"); + EXPECT_EQ(Expression("derivative(x / y, x)").toString(), + "1/y"); + EXPECT_EQ(Expression("derivative(y / x, x)").toString(), + "-y/(x^2)"); + EXPECT_EQ(Expression("derivative(x / 2, x)").toString(), + "1/2"); + EXPECT_EQ(Expression("derivative(2 / x, x)").toString(), + "-2/(x^2)"); + EXPECT_EQ(Expression("derivative(x / (2+I), x)").toString(), + "2/5 - 1/5 I"); + EXPECT_EQ(Expression("derivative((2+I) / x, x)").toString(), + "-(2 + I)/(x^2)"); + EXPECT_EQ(Expression("derivative(x mod y, x)").toString(), + "derivative(x mod y, x)"); + EXPECT_EQ(Expression("derivative(y mod x, x)").toString(), + "derivative(y mod x, x)"); + EXPECT_EQ(Expression("derivative(x mod 2, x)").toString(), + "derivative(x mod 2, x)"); + EXPECT_EQ(Expression("derivative(2 mod x, x)").toString(), + "derivative(2 mod x, x)"); + EXPECT_EQ(Expression("derivative(x ^ x, x)").toString(), + "x^x ln(x) + x^x"); + EXPECT_EQ(Expression("derivative(x ^ y, x)").toString(), + "x^(y - 1) y"); + EXPECT_EQ(Expression("derivative(y ^ x, x)").toString(), + "y^x ln(y)"); + EXPECT_EQ(Expression("derivative(x ^ 2, x)").toString(), + "2 x"); + EXPECT_EQ(Expression("derivative(2 ^ x, x)").toString(), + "2^x ln(2)"); + EXPECT_EQ(Expression("derivative(x ^ (3/5), x)").toString(), + "3/(5 x^(2/5))"); + EXPECT_EQ(Expression("derivative((3/5) ^ x, x)").toString(), + "(3/5)^x ln(3/5)"); + EXPECT_EQ(Expression("derivative(x ^ (-3/5), x)").toString(), + "-3/(5 x^(8/5))"); + EXPECT_EQ(Expression("derivative((-3/5) ^ x, x)").toString(), + "(-3/5)^x ln(-3/5)"); + EXPECT_EQ(Expression("derivative(x ^ (2+I), x)").toString(), + "(2 + I) x^(1 + I)"); + EXPECT_EQ(Expression("derivative((2+I) ^ x, x)").toString(), + "(2 + I)^x ln(2 + I)"); + EXPECT_EQ(Expression("derivative(x deg, x)").toString(), + "Pi/180"); + EXPECT_EQ(Expression("derivative(x%, x)").toString(), + "1/100"); + EXPECT_EQ(Expression("derivative(x!, x)").toString(), + "derivative(x!, x)"); + EXPECT_EQ(Expression("derivative(sqrt(x), x)").toString(), + "1/(2 sqrt(x))"); + EXPECT_EQ(Expression("derivative(root(x, 3), x)").toString(), + "1/(3 x^(2/3))"); + EXPECT_EQ(Expression("derivative(root(x, 10), x)").toString(), + "1/(10 x^(9/10))"); + EXPECT_EQ(Expression("derivative(exp(x), x)").toString(), + "E^x"); + EXPECT_EQ(Expression("derivative(ln(x), x)").toString(), + "1/x"); + EXPECT_EQ(Expression("derivative(lb(x), x)").toString(), + "1/(ln(2) x)"); + EXPECT_EQ(Expression("derivative(lg(x), x)").toString(), + "1/(ln(10) x)"); + EXPECT_EQ(Expression("derivative(log(x, y), x)").toString(), + "-ln(y)/(ln(x)^2 x)"); + EXPECT_EQ(Expression("derivative(log(y, x), x)").toString(), + "1/(x ln(y))"); + EXPECT_EQ(Expression("derivative(log(x, 2), x)").toString(), + "-ln(2)/(ln(x)^2 x)"); + EXPECT_EQ(Expression("derivative(log(2, x), x)").toString(), + "1/(ln(2) x)"); + EXPECT_EQ(Expression("derivative(log(x, (3/5)), x)").toString(), + "-ln(3/5)/(ln(x)^2 x)"); + EXPECT_EQ(Expression("derivative(log((3/5), x), x)").toString(), + "1/(ln(3/5) x)"); + EXPECT_EQ(Expression("derivative(log(x, (-3/5)), x)").toString(), + "-ln(-3/5)/(ln(x)^2 x)"); + EXPECT_EQ(Expression("derivative(log((-3/5), x), x)").toString(), + "1/(ln(-3/5) x)"); + EXPECT_EQ(Expression("derivative(log(x, (2+I)), x)").toString(), + "-ln(2 + I)/(ln(x)^2 x)"); + EXPECT_EQ(Expression("derivative(log((2+I), x), x)").toString(), + "1/(ln(2 + I) x)"); + EXPECT_EQ(Expression("derivative(sin(x), x)").toString(), + "cos(x)"); + EXPECT_EQ(Expression("derivative(sin(x^2), x)").toString(), + "2 x cos(x^2)"); + EXPECT_EQ(Expression("derivative(cos(x), x)").toString(), + "-sin(x)"); + EXPECT_EQ(Expression("derivative(cos(x^2), x)").toString(), + "-2 x sin(x^2)"); + EXPECT_EQ(Expression("derivative(tan(x), x)").toString(), + "sec(x)^2"); + EXPECT_EQ(Expression("derivative(tan(x^2), x)").toString(), + "2 x sec(x^2)^2"); + EXPECT_EQ(Expression("derivative(cot(x), x)").toString(), + "-csc(x)^2"); + EXPECT_EQ(Expression("derivative(cot(x^2), x)").toString(), + "-2 x csc(x^2)^2"); + EXPECT_EQ(Expression("derivative(sec(x), x)").toString(), + "sec(x)^2 sin(x)"); + EXPECT_EQ(Expression("derivative(sec(x^2), x)").toString(), + "2 x sec(x^2)^2 sin(x^2)"); + EXPECT_EQ(Expression("derivative(csc(x), x)").toString(), + "-csc(x)^2 cos(x)"); + EXPECT_EQ(Expression("derivative(csc(x^2), x)").toString(), + "-2 x csc(x^2)^2 cos(x^2)"); + EXPECT_EQ(Expression("derivative(asin(x), x)").toString(), + "1/sqrt(-x^2 + 1)"); + EXPECT_EQ(Expression("derivative(asin(x^2), x)").toString(), + "(2 x)/sqrt(-x^4 + 1)"); + EXPECT_EQ(Expression("derivative(acos(x), x)").toString(), + "-1/sqrt(-x^2 + 1)"); + EXPECT_EQ(Expression("derivative(acos(x^2), x)").toString(), + "-(2 x)/sqrt(-x^4 + 1)"); + EXPECT_EQ(Expression("derivative(atan(x), x)").toString(), + "1/(x^2 + 1)"); + EXPECT_EQ(Expression("derivative(atan(x^2), x)").toString(), + "(2 x)/(x^4 + 1)"); + EXPECT_EQ(Expression("derivative(acot(x), x)").toString(), + "-1/(x^2 + 1)"); + EXPECT_EQ(Expression("derivative(acot(x^2), x)").toString(), + "-(2 x)/(x^4 + 1)"); + EXPECT_EQ(Expression("derivative(asec(x), x)").toString(), + "1/(sqrt(1 - 1/(x^2)) x^2)"); + EXPECT_EQ(Expression("derivative(asec(x^2), x)").toString(), + "2/(sqrt(1 - 1/(x^4)) x^3)"); + EXPECT_EQ(Expression("derivative(acsc(x), x)").toString(), + "-1/(sqrt(1 - 1/(x^2)) x^2)"); + EXPECT_EQ(Expression("derivative(acsc(x^2), x)").toString(), + "-2/(sqrt(1 - 1/(x^4)) x^3)"); + EXPECT_EQ(Expression("derivative(sinh(x), x)").toString(), + "cosh(x)"); + EXPECT_EQ(Expression("derivative(sinh(x^2), x)").toString(), + "2 x cosh(x^2)"); + EXPECT_EQ(Expression("derivative(cosh(x), x)").toString(), + "sinh(x)"); + EXPECT_EQ(Expression("derivative(cosh(x^2), x)").toString(), + "2 x sinh(x^2)"); + EXPECT_EQ(Expression("derivative(tanh(x), x)").toString(), + "sech(x)^2"); + EXPECT_EQ(Expression("derivative(tanh(x^2), x)").toString(), + "2 x sech(x^2)^2"); + EXPECT_EQ(Expression("derivative(coth(x), x)").toString(), + "-csch(x)^2"); + EXPECT_EQ(Expression("derivative(coth(x^2), x)").toString(), + "-2 x csch(x^2)^2"); + EXPECT_EQ(Expression("derivative(sech(x), x)").toString(), + "-sech(x)^2 sinh(x)"); + EXPECT_EQ(Expression("derivative(sech(x^2), x)").toString(), + "-2 x sech(x^2)^2 sinh(x^2)"); + EXPECT_EQ(Expression("derivative(csch(x), x)").toString(), + "-csch(x)^2 cosh(x)"); + EXPECT_EQ(Expression("derivative(csch(x^2), x)").toString(), + "-2 x csch(x^2)^2 cosh(x^2)"); + EXPECT_EQ(Expression("derivative(asinh(x), x)").toString(), + "1/sqrt(x^2 + 1)"); + EXPECT_EQ(Expression("derivative(asinh(x^2), x)").toString(), + "(2 x)/sqrt(x^4 + 1)"); + EXPECT_EQ(Expression("derivative(acosh(x), x)").toString(), + "1/(sqrt(x + 1) sqrt(x - 1))"); + EXPECT_EQ(Expression("derivative(acosh(x^2), x)").toString(), + "(2 x)/(sqrt(x^2 + 1) sqrt(x^2 - 1))"); + EXPECT_EQ(Expression("derivative(atanh(x), x)").toString(), + "-1/(x^2 - 1)"); + EXPECT_EQ(Expression("derivative(atanh(x^2), x)").toString(), + "-(2 x)/(x^4 - 1)"); + EXPECT_EQ(Expression("derivative(acoth(x), x)").toString(), + "-1/(x^2 - 1)"); + EXPECT_EQ(Expression("derivative(acoth(x^2), x)").toString(), + "-(2 x)/(x^4 - 1)"); + EXPECT_EQ(Expression("derivative(asech(x), x)").toString(), + "-1/(sqrt(1 + 1/x) sqrt(-1 + 1/x) x^2)"); + EXPECT_EQ(Expression("derivative(asech(x^2), x)").toString(), + "-2/(sqrt(1 + 1/(x^2)) sqrt(-1 + 1/(x^2)) x^3)"); + EXPECT_EQ(Expression("derivative(acsch(x), x)").toString(), + "-1/(sqrt(1 + 1/(x^2)) x^2)"); + EXPECT_EQ(Expression("derivative(acsch(x^2), x)").toString(), + "-2/(sqrt(1 + 1/(x^4)) x^3)"); + EXPECT_EQ(Expression("derivative(abs(x), x)").toString(), + "derivative(abs(x), x)"); + EXPECT_EQ(Expression("derivative(sign(x), x)").toString(), + "derivative(sign(x), x)"); + EXPECT_EQ(Expression("derivative(floor(x), x)").toString(), + "derivative(floor(x), x)"); + EXPECT_EQ(Expression("derivative(ceil(x), x)").toString(), + "derivative(ceil(x), x)"); + EXPECT_EQ(Expression("derivative(min(x, y), x)").toString(), + "derivative(min(x, y), x)"); + EXPECT_EQ(Expression("derivative(max(x, y), x)").toString(), + "derivative(max(x, y), x)"); + EXPECT_EQ(Expression("derivative(integral(x!, x), x)").toString(), + "derivative(integral(x!, x), x)"); + EXPECT_EQ(Expression("derivative(a b x, x)").toString(), + "a b"); + EXPECT_EQ(Expression("derivative(a b c x, x)").toString(), + "a b c"); + EXPECT_EQ(Expression("derivative(a x y, x)").toString(), + "a y"); + EXPECT_EQ(Expression("derivative(x y z, x)").toString(), + "y z"); + EXPECT_EQ(Expression("derivative(x y z z_1, x)").toString(), + "y z z_1"); + EXPECT_EQ(Expression("derivative(3x^2 - 2x, x)").toString(), + "6 x - 2"); + EXPECT_EQ(Expression("derivative(x^4 - 3x^3 + 2x - 1, x)").toString(), + "4 x^3 - 9 x^2 + 2"); + EXPECT_EQ(Expression("derivative(x^2 cos(x), x)").toString(), + "-x^2 sin(x) + 2 x cos(x)"); + EXPECT_EQ(Expression("derivative(E^(x^2 + 2x), x)").toString(), + "2 E^(x^2 + 2 x) x + 2 E^(x^2 + 2 x)"); // TODO: 2 E^(x^2 + 2 x) (x + 1) + EXPECT_EQ(Expression("derivative(E^sin(x), x)").toString(), + "E^sin(x) cos(x)"); + EXPECT_EQ(Expression("derivative(5E^(-x^3), x)").toString(), + "-15 E x^2 E^(-x^3 - 1)"); // TODO: -15 E^(-x^3) x^2 + EXPECT_EQ(Expression("derivative(8^(x^2 - 5x), x)").toString(), + "(16*8^(x^2 - 5 x - 1) x - 40*8^(x^2 - 5 x - 1)) ln(8)"); // TODO: simplify this + EXPECT_EQ(Expression("derivative((1 + 5x)^3, x)").toString(), + "375 x^2 + 150 x + 15"); + EXPECT_EQ(Expression("derivative(x^5 (2 - x/3 + 3x^2), x)").toString(), + "21 x^6 - 2 x^5 + 10 x^4"); + EXPECT_EQ(Expression("derivative(x^3 3^x, x)").toString(), + "x^3*3^x ln(3) + 3 x^2*3^x"); + EXPECT_EQ(Expression("derivative(ln(3x + 5), x)").toString(), + "3/(3 x + 5)"); + EXPECT_EQ(Expression("derivative(ln(x^5 - 2x^2 + 5), x)").toString(), + "(5 x^4 - 4 x)/(x^5 - 2 x^2 + 5)"); + EXPECT_EQ(Expression("derivative(lb(sin(x)^2), x)").toString(), + "(2 cot(x))/ln(2)"); + EXPECT_EQ(Expression("derivative(root(2 + x^4, 3), x)").toString(), + "(4 x^3)/(3 (x^4 + 2)^(2/3))"); + EXPECT_EQ(Expression("derivative(sqrt(x) + 5/root(x, 5) - 1/x^9 + 7/(9x^5), x)").toString(), + "9/(x^10) - 35/(9 x^6) - 1/(x^(6/5)) + 1/(2 sqrt(x))"); + EXPECT_EQ(Expression("derivative(cos(5x), x)").toString(), + "-5 sin(5 x)"); + EXPECT_EQ(Expression("derivative(asin(5x), x)").toString(), + "5/sqrt(-25 x^2 + 1)"); + EXPECT_EQ(Expression("derivative(sin(x)^2, x)").toString(), + "sin(2 x)"); + EXPECT_EQ(Expression("derivative(cos(x)^2, x)").toString(), + "-sin(2 x)"); + EXPECT_EQ(Expression("derivative(ln(cos(3x)), x)").toString(), + "-3 tan(3 x)"); + EXPECT_EQ(Expression("derivative(log(sin(x^5), tan(x^3)), x)").toString(), + "(3 sec(x^3)^2 x^2 cos(x^3) csc(x^3))/ln(sin(x^5)) - (5 x^4 cot(x^5) ln(tan(x^3)))/(ln(sin(x^5))^2)"); + EXPECT_EQ(Expression("derivative(acos(4x + 5)^5, x)").toString(), + "-(20 acos(4 x + 5)^4)/sqrt(-16 x^2 - 40 x - 24)"); + EXPECT_EQ(Expression("derivative(sin(sin(sin(x))), x)").toString(), + "cos(sin(sin(x))) cos(sin(x)) cos(x)"); + EXPECT_EQ(Expression("derivative(cos(tan(cot(x))), x)").toString(), + "sec(cot(x))^2 csc(x)^2 sin(tan(cot(x)))"); + EXPECT_EQ(Expression("derivative(a b cos(x), x)").toString(), + "-a b sin(x)"); + EXPECT_EQ(Expression("derivative(a x cos(x) ln(x) sign(x), x)").toString(), + "(a x derivative(sign(x), x) cos(x) - a x sin(x) sign(x) + a cos(x) sign(x)) ln(x) + a cos(x) sign(x)"); + EXPECT_EQ(Expression("derivative(a * c * cos(x)/(x^2 + 1), x)").toString(), + "-(a c x^2 sin(x) + 2 a c x cos(x) + a c sin(x))/(x^4 + 2 x^2 + 1)"); + EXPECT_EQ(Expression("derivative((2x^3)/tan(x), x)").toString(), + "-2 x^3 csc(x)^2 + 6 x^2 cot(x)"); + EXPECT_EQ(Expression("derivative(acos(x)/(x^2 + 1), x)").toString(), + "-(x^2 + 2 x sqrt(-x^2 + 1) acos(x) + 1)/(sqrt(-x^2 + 1) x^4 + 2 sqrt(-x^2 + 1) x^2 + sqrt(-x^2 + 1))"); + EXPECT_EQ(Expression("derivative(sin(x)/sinh(x), x)").toString(), + "-csch(x)^2 sin(x) cosh(x) + cos(x) csch(x)"); + EXPECT_EQ(Expression("derivative(tan(x)/tanh(x), x)").toString(), + "sec(x)^2 coth(x) - csch(x)^2 tan(x)"); + EXPECT_EQ(Expression("derivative(derivative(derivative(sin(x^3), x), x), x)").toString(), + "-27 x^6 cos(x^3) - 54 x^3 sin(x^3) + 6 cos(x^3)"); + EXPECT_EQ(Expression("derivative(x^2, x) + derivative(y^2, y)").toString(), + "2 x + 2 y"); + EXPECT_EQ(Expression("derivative(sin(x^3), x) + derivative(cos(y^3), y) / derivative(tan(ln(y)), y)").toString(), + "3 x^2 cos(x^3) - (3 y^3 sin(y^3))/(sec(ln(y))^2)"); +} diff --git a/tests/src/overall/simplify/SimplifyDivisionTests.cpp b/tests/src/overall/simplify/SimplifyDivisionTests.cpp new file mode 100644 index 000000000..8dbfb989c --- /dev/null +++ b/tests/src/overall/simplify/SimplifyDivisionTests.cpp @@ -0,0 +1,97 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyDivisionTests, simplifyTest) { + EXPECT_EQ(Expression("-9 / (3x+3)").toString(), + "-3/(x + 1)"); + EXPECT_EQ(Expression("(4x^2 - 5x - 21) / (x - 3)").toString(), + "4 x + 7"); + EXPECT_EQ(Expression("(3x^3 - 5x^2 + 10x - 3) / (3x + 1)").toString(), + "x^2 - 2 x + 4 - 7/(3 x + 1)"); + EXPECT_EQ(Expression("(2x^3 - 9x^2 + 15) / (2x - 5)").toString(), + "x^2 - 2 x - 5 - 10/(2 x - 5)"); + EXPECT_EQ(Expression("(4x^4 + 1 + 3x^3 + 2x) / (x^2 + x + 2)").toString(), + "4 x^2 - x - 7 + (11 x + 15)/(x^2 + x + 2)"); + EXPECT_EQ(Expression("(2x^4 - 3x^3 + 4x^2 - 5x + 6) / (x^2 + 2x - 3)").toString(), + "2 x^2 - 7 x + 24 - (74 x - 78)/(x^2 + 2 x - 3)"); + EXPECT_EQ(Expression("(4x^5 + 2x^4 - 6x^3 + 3x^2 + x - 2) / (2x^3 + x^2 - 3x + 2)").toString(), + "2 x^2 - (x^2 - x + 2)/(2 x^3 + x^2 - 3 x + 2)"); + EXPECT_EQ(Expression("(3x^6 + 5x^5 - 2x^4 + 4x^3 + x^2 + 3x - 5) / (x^4 + 3x^2 - 2)").toString(), + "3 x^2 + 5 x - 11 - (11 x^3 - 40 x^2 - 13 x + 27)/(x^4 + 3 x^2 - 2)"); + EXPECT_EQ(Expression("(6x^8 - 7x^6 + 9x^4 - 4x^2 + 8) / (2x^3 - x^2 + 3x - 1)").toString(), + "3 x^5 + (3 x^4)/2 - (29 x^3)/4 - (35 x^2)/8 + (223 x)/16 + 317/32 - (1289 x^2 + 505 x - 573)/(64 x^3 - 32 x^2 + 96 x - 32)"); + EXPECT_EQ(Expression("(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)/(25 a^2 + 40 a b + 15 b^2)").toString(), + "(2 a)/25 + (9 b)/125 - (2 a b^2 + 2 b^3)/(625 a^2 + 1000 a b + 375 b^2)"); + EXPECT_EQ(Expression("(25 a^2 + 40 a b + 15 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)").toString(), + "(25 a^2 + 40 a b + 15 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)"); + EXPECT_EQ(Expression("(x^2 + 2x + 1)/(x^3 + 3x^2 + 3x + 1)").toString(), + "1/(x + 1)"); + EXPECT_EQ(Expression("5/(a+b) + 5/(2a+b) + 5/(a+b)").toString(), + "(25 a^2 + 40 a b + 15 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)"); + EXPECT_EQ(Expression("(x+y)/(a+b) + 5/(2a+b) + (x+2y)/(a+b)").toString(), + "(4 a^2 x + 6 a^2 y + 5 a^2 + 6 a b x + 9 a b y + 10 a b + 2 b^2 x + 3 b^2 y + 5 b^2)/(2 a^3 + 5 a^2 b + 4 a b^2 + b^3)"); // TODO: "(4 a x + 6 a y + 5 a + 2 b x + 3 b y + 5 b)/(2 a^2 + 3 a b + b^2)" + EXPECT_EQ(Expression("(a/b)(c/d)").toString(), + "(a c)/(b d)"); + EXPECT_EQ(Expression("(ab/2)(ad/3)").toString(), + "(a^2 b d)/6"); + EXPECT_EQ(Expression("(-a)(-b)").toString(), + "a b"); + EXPECT_EQ(Expression("(a)(-b)").toString(), + "-a b"); + EXPECT_EQ(Expression("(-a)(b)").toString(), + "-a b"); + EXPECT_EQ(Expression("(5/3 b)/a").toString(), + "(5 b)/(3 a)"); + EXPECT_EQ(Expression("(5/3 + b)/(2/5 + a)").toString(), + "(15 b + 25)/(15 a + 6)"); + EXPECT_EQ(Expression("(a b)/(a b)").toString(), + "1"); + EXPECT_EQ(Expression("(a b)/1").toString(), + "a b"); + EXPECT_EQ(Expression("(a b)/-1").toString(), + "-a b"); + EXPECT_EQ(Expression("(a b)/-2").toString(), + "-(a b)/2"); + EXPECT_EQ(Expression("(a b)/(-a - b)").toString(), + "-b + (b^2)/(a + b)"); + EXPECT_EQ(Expression("(x^5)/(x - y)").toString(), + "x^4 + x^3 y + x^2 y^2 + x y^3 + y^4 + (y^5)/(x - y)"); + EXPECT_EQ(Expression("(3 x + 5/9)/(2y - 9/x + 3/2 x + 1/2 + 2 y / x)").toString(), + "2 - (72 x^2 y + 8 x^2 + 72 x y - 324 x)/(27 x^3 + 36 x^2 y + 9 x^2 + 36 x y - 162 x)"); // TODO: "2 - (72 x y + 8 x + 72 y - 324)/(27 x^2 + 36 x y + 9 x + 36 y - 162)" + EXPECT_EQ(Expression("(a/x + b/(y+3/r)/4)/(3+t/5)").toString(), + "(20 a r y + 60 a + 5 b r x)/(4 r t x y + 60 r x y + 12 t x + 180 x)"); + EXPECT_EQ(Expression("(x/a - (b+5)/(y-8/(12 y))/4)/(8-a/5)").toString(), + "(15 a b y + 75 a y - 60 x y^2 + 40 x)/(12 a^2 y^2 - 8 a^2 - 480 a y^2 + 320 a)"); + EXPECT_EQ(Expression("(a + b + c^2) / ((a + b + c^3) / (5/2 * (a + b) / (3/b + c/2)))").toString(), + "5 c + (5 a^2 b + 10 a b^2 - 30 a c + 5 b^3 - 5 b c^5 - 30 b c - 30 c^4)/(a b c + 6 a + b^2 c + b c^4 + 6 " + "b + 6 c^3)"); + EXPECT_EQ(Expression("((2xy)/(x^2 - y^2) + (x - y)/(2x + 2y)) * (2x)/(x + y) + y/(y - x)").toString(), + "1"); + EXPECT_EQ(Expression("y/(x - y) - (x ^3 - xy ^2)/(x ^2 + y ^2) * (x/((x - y) ^2) - y/(x ^2 - y ^2))").toString(), + "-1"); + EXPECT_EQ(Expression("(a+3)/(b+2)").toString(), + "(a + 3)/(b + 2)"); + EXPECT_EQ(Expression("b/a*(a+3)/(b+2)").toString(), + "1 - (2 a - 3 b)/(a b + 2 a)"); + EXPECT_EQ(Expression("(5+b)/a*(a+3)/(b+2)").toString(), + "1 + (3 a + 3 b + 15)/(a b + 2 a)"); + EXPECT_EQ(Expression("(a+b)*(a+b)/(a+b)").toString(), + "a + b"); + EXPECT_EQ(Expression("(a+b)*(a+b)*(1/(a+b))").toString(), + "a + b"); + EXPECT_EQ(Expression("(x^2+2x+1)/(x+1)").toString(), + "x + 1"); + EXPECT_EQ(Expression("(1/2 + sqrt(3)) / (x^(1/4) + 6)").toString(), + "(2 sqrt(3) + 1)/(2 root(x, 4) + 12)"); + EXPECT_EQ(Expression("(x^2 + sqrt(y) - 45) / (sqrt(3) + 3)").toString(), + "(x^2 + sqrt(y) - 45)/(sqrt(3) + 3)"); + EXPECT_EQ(Expression("(x^2 + sqrt(y) - 45x) / (root(3, 4) + 3)").toString(), + "(x^2 - 45 x + sqrt(y))/(root(3, 4) + 3)"); + EXPECT_EQ(Expression("(x^2 + sqrt(y) - 45x) / (root(3, 4) x + 3)").toString(), + "(root(27, 4) x)/3 - sqrt(3) - 15 root(27, 4) + (sqrt(y) + 45 root(27, 4) + 3 sqrt(3))/(root(3, 4) x + 3)"); + EXPECT_EQ(Expression("(sqrt(-4 a c + b^2) - b) / (2 a)").toString(), + "(sqrt(-4 a c + b^2) - b)/(2 a)"); +} diff --git a/tests/src/overall/simplify/SimplifyFactorialsTests.cpp b/tests/src/overall/simplify/SimplifyFactorialsTests.cpp new file mode 100644 index 000000000..f3cb3b719 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyFactorialsTests.cpp @@ -0,0 +1,62 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyFactorialsTests, simplifyTest) { + EXPECT_EQ(Expression("9!").toString(), + "362880"); + EXPECT_EQ(Expression("-1!").toString(), + "-1"); + EXPECT_EQ(Expression("-100!").toString(), + "-933262154439441526816992388562667004907159682643816214685929638952175999932299156089414639761565182862536" + "97920827223758251185210916864000000000000000000000000"); + EXPECT_EQ(Expression("(5!)!").toString(), + "6689502913449127057588118054090372586752746333138029810295671352301633557244962989366874165271984981308157" + "637893214090552534408589408121859898481114389650005964960521256960000000000000000000000000000"); + EXPECT_EQ(Expression("(2)!").toString(), + "2"); + + EXPECT_EQ(Expression("5!").toString(), + "120"); + EXPECT_EQ(Expression("5!!").toString(), + "15"); + EXPECT_EQ(Expression("5!!!").toString(), + "10"); + EXPECT_EQ(Expression("5!!!!").toString(), + "5"); + EXPECT_EQ(Expression("5!!!!!").toString(), + "5"); + EXPECT_EQ(Expression("5!!!!!!").toString(), + "5"); + EXPECT_EQ(Expression("6!").toString(), + "720"); + EXPECT_EQ(Expression("6!!").toString(), + "48"); + EXPECT_EQ(Expression("6!!!").toString(), + "18"); + EXPECT_EQ(Expression("6!!!!").toString(), + "12"); + EXPECT_EQ(Expression("6!!!!!").toString(), + "6"); + EXPECT_EQ(Expression("6!!!!!!").toString(), + "6"); + EXPECT_EQ(Expression("15!!!!!!").toString(), + "405"); + EXPECT_EQ(Expression("15!!!!!!!").toString(), + "120"); + EXPECT_EQ(Expression("30!!!!!!").toString(), + "933120"); + EXPECT_EQ(Expression("30!!!!!!!").toString(), + "198720"); + + EXPECT_EQ(Expression("(2/3)!").toString(), + "(2/3)!"); + EXPECT_EQ(Expression("E!").toString(), + "E!"); + EXPECT_EQ(Expression("(2/3)!!").toString(), + "(2/3)!!"); + EXPECT_EQ(Expression("(-1)!!").toString(), + "(-1)!!"); +} diff --git a/tests/src/overall/simplify/SimplifyHyperbolicTests.cpp b/tests/src/overall/simplify/SimplifyHyperbolicTests.cpp new file mode 100644 index 000000000..aa67a0005 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyHyperbolicTests.cpp @@ -0,0 +1,96 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyHyperbolicTests, simplifyTest) { + EXPECT_EQ(Expression("sinh(-x)").toString(), + "-sinh(x)"); + EXPECT_EQ(Expression("cosh(-x)").toString(), + "cosh(x)"); + EXPECT_EQ(Expression("tanh(-x)").toString(), + "-tanh(x)"); + EXPECT_EQ(Expression("coth(-x)").toString(), + "-coth(x)"); + EXPECT_EQ(Expression("sech(-x)").toString(), + "sech(x)"); + EXPECT_EQ(Expression("csch(-x)").toString(), + "-csch(x)"); + + EXPECT_EQ(Expression("sinh(asinh(x))").toString(), + "x"); + EXPECT_EQ(Expression("cosh(acosh(x))").toString(), + "x"); + EXPECT_EQ(Expression("tanh(atanh(x))").toString(), + "x"); + EXPECT_EQ(Expression("coth(acoth(x))").toString(), + "x"); + EXPECT_EQ(Expression("sech(asech(x))").toString(), + "x"); + EXPECT_EQ(Expression("csch(acsch(x))").toString(), + "x"); + EXPECT_EQ(Expression("asinh(sinh(x))").toString(), + "asinh(sinh(x))"); + EXPECT_EQ(Expression("acosh(cosh(x))").toString(), + "acosh(cosh(x))"); + EXPECT_EQ(Expression("atanh(tanh(x))").toString(), + "atanh(tanh(x))"); + EXPECT_EQ(Expression("acoth(coth(x))").toString(), + "acoth(coth(x))"); + EXPECT_EQ(Expression("asech(sech(x))").toString(), + "asech(sech(x))"); + EXPECT_EQ(Expression("acsch(csch(x))").toString(), + "acsch(csch(x))"); + + EXPECT_EQ(Expression("sinh(x)/cosh(x)").toString(), + "tanh(x)"); + EXPECT_EQ(Expression("(-2sinh(x))/cosh(x)").toString(), + "-2 tanh(x)"); + EXPECT_EQ(Expression("(2sinh(x))/(3cosh(x))").toString(), + "(2 tanh(x))/3"); + EXPECT_EQ(Expression("sinh(x)^2/cosh(x)").toString(), + "sinh(x)^2 sech(x)"); + EXPECT_EQ(Expression("sinh(x)/cosh(x)^2").toString(), + "sech(x)^2 sinh(x)"); + EXPECT_EQ(Expression("sinh(x)^2/cosh(x)^2").toString(), + "tanh(x)^2"); + EXPECT_EQ(Expression("(2sinh(x))^2/cosh(x)^2").toString(), + "4 tanh(x)^2"); + EXPECT_EQ(Expression("(2sinh(x))^2/(3cosh(x))^2").toString(), + "(4 tanh(x)^2)/9"); + + EXPECT_EQ(Expression("cosh(x)/sinh(x)").toString(), + "coth(x)"); + EXPECT_EQ(Expression("(-2cosh(x))/sinh(x)").toString(), + "-2 coth(x)"); + EXPECT_EQ(Expression("(2cosh(x))/(3sinh(x))").toString(), + "(2 coth(x))/3"); + EXPECT_EQ(Expression("cosh(x)^2/sinh(x)").toString(), + "cosh(x)^2 csch(x)"); + EXPECT_EQ(Expression("cosh(x)/sinh(x)^2").toString(), + "csch(x)^2 cosh(x)"); + EXPECT_EQ(Expression("cosh(x)^2/sinh(x)^2").toString(), + "coth(x)^2"); + EXPECT_EQ(Expression("(2cosh(x))^2/sinh(x)^2").toString(), + "4 coth(x)^2"); + EXPECT_EQ(Expression("(2cosh(x))^2/(3sinh(x))^2").toString(), + "(4 coth(x)^2)/9"); + + EXPECT_EQ(Expression("sech(x)/csch(x)").toString(), + "tanh(x)"); + EXPECT_EQ(Expression("csch(x)/sech(x)").toString(), + "coth(x)"); + EXPECT_EQ(Expression("sech(x)*coth(x)").toString(), + "csch(x)"); + EXPECT_EQ(Expression("csch(x)*tanh(x)").toString(), + "sech(x)"); + + EXPECT_EQ(Expression("tanh(x) * coth(x)").toString(), + "1"); + EXPECT_EQ(Expression("coth(x) * tanh(x)").toString(), + "1"); + // TODO: implement + // EXPECT_EQ(Expression("cosh(x)^2 - sinh(x)^2").toString(), + // "1"); +} diff --git a/tests/src/overall/simplify/SimplifyInfinitiesTests.cpp b/tests/src/overall/simplify/SimplifyInfinitiesTests.cpp new file mode 100644 index 000000000..a98ae7b5a --- /dev/null +++ b/tests/src/overall/simplify/SimplifyInfinitiesTests.cpp @@ -0,0 +1,695 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyInfinitiesTests, simplifyTest) { + EXPECT_EQ(Expression("Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("-Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("ComplexInf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("-ComplexInf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("1/0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("a/0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("1/Inf").toString(), + "0"); + EXPECT_EQ(Expression("1/-Inf").toString(), + "0"); + EXPECT_EQ(Expression("a/Inf").toString(), + "0"); + EXPECT_EQ(Expression("a/-Inf").toString(), + "0"); + EXPECT_EQ(Expression("1/ComplexInf").toString(), + "0"); + EXPECT_EQ(Expression("a/ComplexInf").toString(), + "0"); + EXPECT_EQ(Expression("0/Inf").toString(), + "0"); + EXPECT_EQ(Expression("Inf/0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("0/-Inf").toString(), + "0"); + EXPECT_EQ(Expression("-Inf/0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("0/ComplexInf").toString(), + "0"); + EXPECT_EQ(Expression("ComplexInf/0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("0 / (Inf x)").toString(), + "0"); + EXPECT_EQ(Expression("(Inf/x) / 0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("1/Inf - 1").toString(), + "-1"); + EXPECT_EQ(Expression("Inf/2 - 1").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf + Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("-Inf - Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("10 + Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("-10 + Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("10 - Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("-10 - Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("I + Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("I - Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("I + ComplexInf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("a + Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("-a - Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("a + ComplexInf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("a - ComplexInf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("10 * Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("-10 * Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("-2/3 * Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("(I+2) * Inf").toString(), + "(2 + I) Inf"); + EXPECT_EQ(Expression("(I+2) * -Inf").toString(), + "(-2 - I) Inf"); + EXPECT_EQ(Expression("(I+2) * ComplexInf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("Inf * Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf * -Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("-Inf * -Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("ComplexInf*ComplexInf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf*Inf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf*-Inf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("a * Inf").toString(), + "Inf a"); + EXPECT_EQ(Expression("Inf * (Inf x)").toString(), + "Inf x"); + EXPECT_EQ(Expression("Inf * (Inf/x)").toString(), + "Inf/x"); + EXPECT_EQ(Expression("Inf / a").toString(), + "Inf/a"); + EXPECT_EQ(Expression("Inf / 2").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf / -2").toString(), + "-Inf"); + EXPECT_EQ(Expression("Inf / I").toString(), + "-I Inf"); + EXPECT_EQ(Expression("Inf / (-I - 3)").toString(), + "-((3 - I) Inf)/10"); + EXPECT_EQ(Expression("Inf^2").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf^(2/3)").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf^-2").toString(), + "0"); + EXPECT_EQ(Expression("Inf^(-2/3)").toString(), + "0"); + EXPECT_EQ(Expression("(-Inf)^2").toString(), + "Inf"); + EXPECT_EQ(Expression("(-Inf)^3").toString(), + "-Inf"); + EXPECT_EQ(Expression("(-Inf)^(2/3)").toString(), + "Inf sign((-1)^(2/3))"); + EXPECT_EQ(Expression("ComplexInf^2").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf^(2/3)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf^-2").toString(), + "0"); + EXPECT_EQ(Expression("ComplexInf^(-2/3)").toString(), + "0"); + EXPECT_EQ(Expression("Inf^(I+2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("Inf^(I-2)").toString(), + "0"); + EXPECT_EQ(Expression("Inf^(-I+2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("Inf^(-I-2)").toString(), + "0"); + EXPECT_EQ(Expression("(-Inf)^(I+2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("(-Inf)^(I-2)").toString(), + "0"); + EXPECT_EQ(Expression("(-Inf)^(-I+2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("(-Inf)^(-I-2)").toString(), + "0"); + EXPECT_EQ(Expression("ComplexInf^(I+2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf^(I-2)").toString(), + "0"); + EXPECT_EQ(Expression("ComplexInf^(-I+2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf^(-I-2)").toString(), + "0"); + EXPECT_EQ(Expression("0^Inf").toString(), + "0"); + EXPECT_EQ(Expression("0^-Inf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("0^-1").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("2^Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("2^-Inf").toString(), + "0"); + EXPECT_EQ(Expression("0.2^Inf").toString(), + "0"); + EXPECT_EQ(Expression("0.2^-Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf^Inf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("(-Inf)^Inf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf^Inf").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("0^(Inf/x)").toString(), + "0^(Inf/x)"); + EXPECT_EQ(Expression("1^(Inf/x)").toString(), + "1^(Inf/x)"); + EXPECT_EQ(Expression("sqrt(2) * Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("-sqrt(2) * Inf").toString(), + "-Inf"); + EXPECT_EQ(Expression("sqrt(2) ^ Inf").toString(), + "Inf"); + EXPECT_EQ(Expression("sqrt(0.5) ^ Inf").toString(), + "0"); + EXPECT_EQ(Expression("sqrt(2) ^ (-Inf)").toString(), + "0"); + EXPECT_EQ(Expression("sqrt(0.5) ^ (-Inf)").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf ^ sqrt(5)").toString(), + "Inf"); + EXPECT_EQ(Expression("Inf ^ -sqrt(5)").toString(), + "0"); + EXPECT_EQ(Expression("(-Inf) ^ sqrt(5)").toString(), + "Inf sign((-1)^sqrt(5))"); + EXPECT_EQ(Expression("(-Inf) ^ -sqrt(5)").toString(), + "0"); + EXPECT_EQ(Expression("ComplexInf ^ sqrt(5)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("ComplexInf ^ -sqrt(5)").toString(), + "0"); + EXPECT_EQ(Expression("sin(Inf)").toString(), + "sin(Inf)"); // TODO: [-1, 1] + EXPECT_EQ(Expression("log(1, 0)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("log(1, 10)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("log(10, 0)").toString(), + "-Inf"); + EXPECT_EQ(Expression("log(1/10, 0)").toString(), + "Inf"); + EXPECT_EQ(Expression("ln(0)").toString(), + "-Inf"); + EXPECT_EQ(Expression("ln(Inf)").toString(), + "Inf"); + EXPECT_EQ(Expression("ln(-Inf)").toString(), + "Inf"); + EXPECT_EQ(Expression("ln(ComplexInf)").toString(), + "Inf"); + EXPECT_EQ(Expression("(-1)!").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("tan(Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("tan(3/2*Pi)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("cot(0)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("cot(2*Pi)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("sin(Inf)^2 + cos(Inf)^2").toString(), + "sin(Inf)^2 + cos(Inf)^2"); + EXPECT_EQ(Expression("sin(Inf) cos(Inf)").toString(), + "sin(Inf) cos(Inf)"); + EXPECT_EQ(Expression("tan(Inf)").toString(), + "tan(Inf)"); + EXPECT_EQ(Expression("tan(Inf) * cot(Inf)").toString(), + "tan(Inf) cot(Inf)"); + EXPECT_EQ(Expression("sign(Inf)").toString(), + "1"); + EXPECT_EQ(Expression("sign(-Inf)").toString(), + "-1"); + EXPECT_EQ(Expression("abs(Inf)").toString(), + "Inf"); + EXPECT_EQ(Expression("abs(-Inf)").toString(), + "Inf"); + EXPECT_EQ(Expression("abs(ComplexInf)").toString(), + "Inf"); + EXPECT_EQ(Expression("0/sign(Inf)").toString(), + "0"); + EXPECT_EQ(Expression("sign(Inf)/0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("0^sign(Inf)").toString(), + "0"); + EXPECT_EQ(Expression("sign(Inf)^0").toString(), + "1"); + EXPECT_EQ(Expression("0 (Inf!)").toString(), + "0 Inf!"); + EXPECT_EQ(Expression("0/(Inf!)").toString(), + "0"); + EXPECT_EQ(Expression("(Inf!)/0").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("0^(Inf!)").toString(), + "0^(Inf!)"); + EXPECT_EQ(Expression("(Inf!)^0").toString(), + "(Inf!)^0"); + EXPECT_EQ(Expression("log((Inf!), (Inf!))").toString(), + "log(Inf!, Inf!)"); + EXPECT_EQ(Expression("log((Inf!), Inf)").toString(), + "log(Inf!, Inf)"); + EXPECT_EQ(Expression("log(Inf, (Inf!))").toString(), + "log(Inf, Inf!)"); + EXPECT_EQ(Expression("log((Inf!), 1)").toString(), + "log(Inf!, 1)"); + EXPECT_EQ(Expression("log(1, (Inf!))").toString(), + "log(1, Inf!)"); + EXPECT_EQ(Expression("Inf = Inf").toString(), + "True"); + EXPECT_EQ(Expression("Inf = -Inf").toString(), + "False"); + EXPECT_EQ(Expression("-Inf = Inf").toString(), + "False"); + EXPECT_EQ(Expression("-Inf = -Inf").toString(), + "True"); + EXPECT_EQ(Expression("x = Inf").toString(), + "False"); + EXPECT_EQ(Expression("x = -Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf = x").toString(), + "False"); + EXPECT_EQ(Expression("-Inf = x").toString(), + "False"); + EXPECT_EQ(Expression("x != Inf").toString(), + "True"); + EXPECT_EQ(Expression("x != -Inf").toString(), + "True"); + EXPECT_EQ(Expression("Inf != x").toString(), + "True"); + EXPECT_EQ(Expression("-Inf != x").toString(), + "True"); + EXPECT_EQ(Expression("x > Inf").toString(), + "x > Inf"); + EXPECT_EQ(Expression("x < Inf").toString(), + "x < Inf"); + EXPECT_EQ(Expression("x <= Inf").toString(), + "x <= Inf"); + EXPECT_EQ(Expression("x >= Inf").toString(), + "x >= Inf"); + EXPECT_EQ(Expression("x > -Inf").toString(), + "x > -Inf"); + EXPECT_EQ(Expression("x < -Inf").toString(), + "x < -Inf"); + EXPECT_EQ(Expression("x <= -Inf").toString(), + "x <= -Inf"); + EXPECT_EQ(Expression("x >= -Inf").toString(), + "x >= -Inf"); + EXPECT_EQ(Expression("Inf > x").toString(), + "Inf > x"); + EXPECT_EQ(Expression("Inf < x").toString(), + "Inf < x"); + EXPECT_EQ(Expression("Inf <= x").toString(), + "Inf <= x"); + EXPECT_EQ(Expression("Inf >= x").toString(), + "Inf >= x"); + EXPECT_EQ(Expression("-Inf > x").toString(), + "-Inf > x"); + EXPECT_EQ(Expression("-Inf < x").toString(), + "-Inf < x"); + EXPECT_EQ(Expression("-Inf <= x").toString(), + "-Inf <= x"); + EXPECT_EQ(Expression("-Inf >= x").toString(), + "-Inf >= x"); + EXPECT_EQ(Expression("x Inf = Inf").toString(), + "Inf x = Inf"); + EXPECT_EQ(Expression("Inf = x Inf").toString(), + "Inf = Inf x"); + EXPECT_EQ(Expression("x Inf < Inf").toString(), + "Inf x < Inf"); + EXPECT_EQ(Expression("Inf < x Inf").toString(), + "Inf < Inf x"); + EXPECT_EQ(Expression("x Inf = 0").toString(), + "Inf x = 0"); + EXPECT_EQ(Expression("0 = x Inf").toString(), + "0 = Inf x"); + EXPECT_EQ(Expression("x Inf < 0").toString(), + "Inf x < 0"); + EXPECT_EQ(Expression("0 < x Inf").toString(), + "0 < Inf x"); + EXPECT_EQ(Expression("x = ComplexInf").toString(), + "False"); + EXPECT_EQ(Expression("x != ComplexInf").toString(), + "True"); + EXPECT_EQ(Expression("x < ComplexInf").toString(), + "x < ComplexInf"); + EXPECT_EQ(Expression("x > ComplexInf").toString(), + "x > ComplexInf"); + EXPECT_EQ(Expression("x <= ComplexInf").toString(), + "x <= ComplexInf"); + EXPECT_EQ(Expression("x >= ComplexInf").toString(), + "x >= ComplexInf"); + EXPECT_EQ(Expression("ComplexInf = x").toString(), + "False"); + EXPECT_EQ(Expression("ComplexInf != x").toString(), + "True"); + EXPECT_EQ(Expression("ComplexInf < x").toString(), + "ComplexInf < x"); + EXPECT_EQ(Expression("ComplexInf > x").toString(), + "ComplexInf > x"); + EXPECT_EQ(Expression("ComplexInf <= x").toString(), + "ComplexInf <= x"); + EXPECT_EQ(Expression("ComplexInf >= x").toString(), + "ComplexInf >= x"); + EXPECT_EQ(Expression("ComplexInf = ComplexInf").toString(), + "ComplexInf = ComplexInf"); + EXPECT_EQ(Expression("Inf = Inf").toString(), + "True"); + EXPECT_EQ(Expression("Inf != Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf > Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf < Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf <= Inf").toString(), + "True"); + EXPECT_EQ(Expression("-Inf >= Inf").toString(), + "False"); + EXPECT_EQ(Expression("-Inf = Inf").toString(), + "False"); + EXPECT_EQ(Expression("-Inf != Inf").toString(), + "True"); + EXPECT_EQ(Expression("-Inf > Inf").toString(), + "False"); + EXPECT_EQ(Expression("-Inf < Inf").toString(), + "True"); + EXPECT_EQ(Expression("-Inf <= Inf").toString(), + "True"); + EXPECT_EQ(Expression("-Inf >= Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf = -Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf != -Inf").toString(), + "True"); + EXPECT_EQ(Expression("Inf > -Inf").toString(), + "True"); + EXPECT_EQ(Expression("Inf < -Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf <= -Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf >= -Inf").toString(), + "True"); + EXPECT_EQ(Expression("ComplexInf = Inf").toString(), + "ComplexInf = Inf"); + EXPECT_EQ(Expression("ComplexInf != Inf").toString(), + "ComplexInf != Inf"); + EXPECT_EQ(Expression("ComplexInf > Inf").toString(), + "ComplexInf > Inf"); + EXPECT_EQ(Expression("ComplexInf < Inf").toString(), + "ComplexInf < Inf"); + EXPECT_EQ(Expression("ComplexInf >= Inf").toString(), + "ComplexInf >= Inf"); + EXPECT_EQ(Expression("ComplexInf <= Inf").toString(), + "ComplexInf <= Inf"); + EXPECT_EQ(Expression("ComplexInf = -Inf").toString(), + "ComplexInf = -Inf"); + EXPECT_EQ(Expression("ComplexInf != -Inf").toString(), + "ComplexInf != -Inf"); + EXPECT_EQ(Expression("ComplexInf > -Inf").toString(), + "ComplexInf > -Inf"); + EXPECT_EQ(Expression("ComplexInf < -Inf").toString(), + "ComplexInf < -Inf"); + EXPECT_EQ(Expression("ComplexInf >= -Inf").toString(), + "ComplexInf >= -Inf"); + EXPECT_EQ(Expression("ComplexInf <= -Inf").toString(), + "ComplexInf <= -Inf"); + EXPECT_EQ(Expression("Inf = ComplexInf").toString(), + "Inf = ComplexInf"); + EXPECT_EQ(Expression("Inf != ComplexInf").toString(), + "Inf != ComplexInf"); + EXPECT_EQ(Expression("Inf > ComplexInf").toString(), + "Inf > ComplexInf"); + EXPECT_EQ(Expression("Inf < ComplexInf").toString(), + "Inf < ComplexInf"); + EXPECT_EQ(Expression("Inf >= ComplexInf").toString(), + "Inf >= ComplexInf"); + EXPECT_EQ(Expression("Inf <= ComplexInf").toString(), + "Inf <= ComplexInf"); + EXPECT_EQ(Expression("-Inf = ComplexInf").toString(), + "-Inf = ComplexInf"); + EXPECT_EQ(Expression("-Inf != ComplexInf").toString(), + "-Inf != ComplexInf"); + EXPECT_EQ(Expression("-Inf > ComplexInf").toString(), + "-Inf > ComplexInf"); + EXPECT_EQ(Expression("-Inf < ComplexInf").toString(), + "-Inf < ComplexInf"); + EXPECT_EQ(Expression("-Inf >= ComplexInf").toString(), + "-Inf >= ComplexInf"); + EXPECT_EQ(Expression("-Inf <= ComplexInf").toString(), + "-Inf <= ComplexInf"); + EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% = Inf").toString(), + "True"); + EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% != Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% < Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% > Inf").toString(), + "False"); + EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% <= Inf").toString(), + "True"); + EXPECT_EQ(Expression("Inf * Inf + Inf - Inf * -1% >= Inf").toString(), + "True"); + + EXPECT_EQ(Expression("0*Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("0*-Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("0*ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf - Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf - ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf + ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf + Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf - Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf + ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("-Inf + ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("0/0").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf/Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("-Inf/-Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf/-Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("-Inf/Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf/ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf/Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf/-Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf/ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("-Inf/ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("x Inf / Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("-Inf + Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf - Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("0^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("(-Inf)^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("ComplexInf^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf^I").toString(), + "Undefined"); + EXPECT_EQ(Expression("(-Inf)^I").toString(), + "Undefined"); + EXPECT_EQ(Expression("(ComplexInf)^I").toString(), + "Undefined"); + EXPECT_EQ(Expression("1^Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("1^-Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("1^ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("x^ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("I^Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("I^-Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("I^ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("2^ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("0.2^ComplexInf").toString(), + "Undefined"); + EXPECT_EQ(Expression("(x Inf)^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0^(x Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("1^(x Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("sin(0/0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("1 + 0^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("1 + sin(asin(0^0)) + x").toString(), + "Undefined"); + EXPECT_EQ(Expression("1 + (2^2 - 4)^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0^((2^2 - 4)^0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("-((2^2 - 4)^0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("sin(-((2^2 - 4)^0))").toString(), + "Undefined"); + EXPECT_EQ(Expression("0^0 - 0^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0^0 * 0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0^0 / 0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0 / 0^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0^0 / 0^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("(x/x - 1)^0 / 0^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0/0 - 0/0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0/0 * 0").toString(), + "Undefined"); + EXPECT_EQ(Expression("0/0 / 0").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf / (Inf x)").toString(), + "Undefined"); + EXPECT_EQ(Expression("(Inf x) / Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("0 * (Inf x)").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf^x").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf^-x").toString(), + "Undefined"); + EXPECT_EQ(Expression("x^Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("(-x)^Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("(Inf x) ^ 0").toString(), + "Undefined"); + EXPECT_EQ(Expression("(Inf x) ^ Inf").toString(), + "Undefined"); + EXPECT_EQ(Expression("0 ^ (Inf x)").toString(), + "Undefined"); + EXPECT_EQ(Expression("Inf ^ (Inf x)").toString(), + "Undefined"); + EXPECT_EQ(Expression("(Inf/x)^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(1, 1)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(0, 0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(Inf, Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(0, Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(Inf, 0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(-Inf, -Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(0, -Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(-Inf, 0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(Inf, -Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(-Inf, Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(ComplexInf, ComplexInf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(0, ComplexInf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(ComplexInf, 0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(ComplexInf, Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(ComplexInf, -Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(Inf, ComplexInf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(-Inf, ComplexInf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(x Inf, Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(Inf, x Inf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(0^0, 0^0)").toString(), + "Undefined"); + EXPECT_EQ(Expression("log(sign(Inf), -sign(-Inf))").toString(), + "Undefined"); + EXPECT_EQ(Expression("tan(Pi) * cot(Pi)").toString(), + "Undefined"); + EXPECT_EQ(Expression("sign(ComplexInf)").toString(), + "Undefined"); + EXPECT_EQ(Expression("root(2, 0)").toString(), + "Undefined"); + + EXPECT_EQ(Expression("Undefined").toString(), + "Undefined"); + EXPECT_EQ(Expression("-Undefined").toString(), + "Undefined"); + EXPECT_EQ(Expression("Undefined + 10").toString(), + "Undefined"); + EXPECT_EQ(Expression("Undefined - 10").toString(), + "Undefined"); + EXPECT_EQ(Expression("0/Undefined").toString(), + "Undefined"); + EXPECT_EQ(Expression("1/Undefined").toString(), + "Undefined"); + EXPECT_EQ(Expression("Undefined^1").toString(), + "Undefined"); + EXPECT_EQ(Expression("Undefined^0").toString(), + "Undefined"); + EXPECT_EQ(Expression("sin(Undefined)").toString(), + "Undefined"); +} + +TEST(SimplifyInfinitiesTests, simplifyNegativeTest) { + EXPECT_THROW(Expression("Inf - Inf = 0").toString(), InvalidInputException); + EXPECT_THROW(Expression("Inf - Inf = 0 | a").toString(), InvalidInputException); + EXPECT_THROW(Expression("0/0 = 0/0").toString(), InvalidInputException); + EXPECT_THROW(Expression("Undefined = Undefined").toString(), InvalidInputException); +} diff --git a/tests/src/overall/simplify/SimplifyIntegralsTests.cpp b/tests/src/overall/simplify/SimplifyIntegralsTests.cpp new file mode 100644 index 000000000..1ebef0895 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyIntegralsTests.cpp @@ -0,0 +1,15 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyIntegralsTests, simplifyTest) { + // TODO: integral + EXPECT_EQ(Expression("integral(x, x)").toString(), + "integral(x, x)"); + EXPECT_EQ(Expression("integral(x+x, x)").toString(), + "integral(2 x, x)"); + EXPECT_EQ(Expression("integral(x, x) + integral(b, b)").toString(), + "integral(b, b) + integral(x, x)"); +} diff --git a/tests/src/overall/simplify/SimplifyLogarithmsTests.cpp b/tests/src/overall/simplify/SimplifyLogarithmsTests.cpp new file mode 100644 index 000000000..2a81530a1 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyLogarithmsTests.cpp @@ -0,0 +1,103 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyLogarithmsTests, simplifyTest) { + EXPECT_EQ(Expression("log(2, 2)").toString(), + "1"); + EXPECT_EQ(Expression("log(2, 256)").toString(), + "8"); + EXPECT_EQ(Expression("log(3, 515377520732011331036461129765621272702107522001)").toString(), + "100"); + EXPECT_EQ(Expression("log(515377520732011331036461129765621272702107522001, 3)").toString(), + "1/100"); + EXPECT_EQ(Expression("log(2/3, 4/9)").toString(), + "2"); + EXPECT_EQ(Expression("log(9/4, 3/2)").toString(), + "1/2"); + EXPECT_EQ(Expression("log(4/9, 2/3)").toString(), + "1/2"); + EXPECT_EQ(Expression("log(4/11, 2/3)").toString(), + "log(4/11, 2/3)"); + EXPECT_EQ(Expression("ln1").toString(), + "0"); + EXPECT_EQ(Expression("ln3").toString(), + "ln(3)"); + EXPECT_EQ(Expression("ln2").toString(), + "ln(2)"); + EXPECT_EQ(Expression("ln100").toString(), + "ln(100)"); + EXPECT_EQ(Expression("ln(E)").toString(), + "1"); + EXPECT_EQ(Expression("lg99").toString(), + "log(10, 99)"); + EXPECT_EQ(Expression("lg100").toString(), + "2"); + EXPECT_EQ(Expression("lb100").toString(), + "log(2, 100)"); + EXPECT_EQ(Expression("lb4").toString(), + "2"); + EXPECT_EQ(Expression("ln(ln(E))").toString(), + "0"); + EXPECT_EQ(Expression("ln(E)!").toString(), + "1"); + EXPECT_EQ(Expression("log(0, 1)").toString(), + "0"); + EXPECT_EQ(Expression("log(-1, 1)").toString(), + "0"); + EXPECT_EQ(Expression("log(E,E)").toString(), + "1"); + EXPECT_EQ(Expression("log(Pi, Pi^10)").toString(), + "10"); + EXPECT_EQ(Expression("log(E,E^3)").toString(), + "3"); + EXPECT_EQ(Expression("log((Pi),(E)^((Pi)))").toString(), + "Pi log(Pi, E)"); + EXPECT_EQ(Expression("log(E^3, E)").toString(), + "1/3"); + EXPECT_EQ(Expression("log(E^Pi, E)").toString(), + "1/Pi"); + + EXPECT_EQ(Expression("ln(x) + ln(y)").toString(), + "ln(x y)"); + EXPECT_EQ(Expression("ln(x) - ln(y)").toString(), + "ln(x/y)"); + EXPECT_EQ(Expression("-ln(x) + ln(y)").toString(), + "ln(y/x)"); + EXPECT_EQ(Expression("-ln(x) - ln(y)").toString(), + "ln(1/(x y))"); + EXPECT_EQ(Expression("lb(x)/y").toString(), + "log(2, x)/y"); + EXPECT_EQ(Expression("ln((E)/(20000.1EE)) + ln(20000.1E)").toString(), + "0"); + EXPECT_EQ(Expression("ln((10 E)^2) - ln(10 E 10 E)").toString(), + "0"); + EXPECT_EQ(Expression("ln((10 E)^2) - 2 ln(10 E)").toString(), + "0"); + EXPECT_EQ(Expression("3 ln((10 E)^2) - 2 ln(10 E)").toString(), + "4 ln(10 E)"); + EXPECT_EQ(Expression("ln((10 E)^(2ab)) - 2 a ln(10 E) b").toString(), + "0"); + EXPECT_EQ(Expression("ln((10 E)^(2 ln(2))) - 2 ln(2) ln(10 E)").toString(), + "0"); + EXPECT_EQ(Expression("log(2.3, (E)/(20000.1*E*E)) + log(2.3, 20000.1*E)").toString(), + "0"); + EXPECT_EQ(Expression("log(2.3, (E)/(20000.1*E*E)) - log(2.3, 20000.1*E)").toString(), + "log(23/10, 100/(40000400001 E^2))"); + EXPECT_EQ(Expression("log(2, 3) + log(3, 4)").toString(), + "log(3, 4) + log(2, 3)"); + EXPECT_EQ(Expression("x log(2, 3) + log(2, 5)").toString(), + "log(2, 5*3^x)"); + EXPECT_EQ(Expression("x log(2, 3) + log(2, 5a)").toString(), + "log(2, 5 a 3^x)"); + EXPECT_EQ(Expression("log(2, 3) + 3log(3, 4)").toString(), + "log(2, 3) + 3 log(3, 4)"); + EXPECT_EQ(Expression("3log(2x, 3) + log(3, 4)").toString(), + "3 log(2 x, 3) + log(3, 4)"); + EXPECT_EQ(Expression("3log(2x, 3) + 4log(3, 4)").toString(), + "3 log(2 x, 3) + 4 log(3, 4)"); + EXPECT_EQ(Expression("3log(2x, 3) + 5log(2x, 4)").toString(), + "log(2 x, 27648)"); +} diff --git a/tests/src/overall/simplify/SimplifyLogicTests.cpp b/tests/src/overall/simplify/SimplifyLogicTests.cpp new file mode 100644 index 000000000..506dd5881 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyLogicTests.cpp @@ -0,0 +1,271 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyLogicTests, simplifyTest) { + EXPECT_EQ(Expression("~True").toString(), + "False"); + EXPECT_EQ(Expression("~False").toString(), + "True"); + EXPECT_EQ(Expression("True&False").toString(), + "False"); + EXPECT_EQ(Expression("~~~True&~~~~False|~~~~~~False|False").toString(), + "False"); + EXPECT_EQ(Expression("True|False").toString(), + "True"); + EXPECT_EQ(Expression("True&False|True&False").toString(), + "False"); + EXPECT_EQ(Expression("False&True|True&False").toString(), + "False"); + EXPECT_EQ(Expression("False&True|True&True|False").toString(), + "True"); + EXPECT_EQ(Expression("False|~False&True").toString(), + "True"); + EXPECT_EQ(Expression("(False|False&~True)|(True&~(False|True))").toString(), + "False"); + EXPECT_EQ(Expression("True !<-> True").toString(), + "False"); + EXPECT_EQ(Expression("(False -> False & ~True) !<-> (True <-> ~(False|True))").toString(), + "True"); + EXPECT_EQ(Expression("False <-> ~False & True").toString(), + "False"); + EXPECT_EQ(Expression("False <-> True -> False").toString(), + "True"); + + EXPECT_EQ(Expression("~(1=1)").toString(), + "False"); + EXPECT_EQ(Expression("~(1=2)").toString(), + "True"); + EXPECT_EQ(Expression("(1=1)&(1=2)").toString(), + "False"); + EXPECT_EQ(Expression("(1=1)|(1=2)").toString(), + "True"); + EXPECT_EQ(Expression("(1=2)|~(1=2)&(1=1)").toString(), + "True"); + EXPECT_EQ(Expression("((1=2)|(1=2)&~(1=1))|((1=1)&~((1=2)|(1=1)))").toString(), + "False"); + EXPECT_EQ(Expression("((1=2) -> (1=2) & ~(1=1)) !<-> ((1=1) <-> ~((1=2) | (1=1)))").toString(), + "True"); + EXPECT_EQ(Expression("False|1=1").toString(), + "True"); + EXPECT_EQ(Expression("1=1|False").toString(), + "True"); + EXPECT_EQ(Expression("a>b|a").toString(), + "a - b > 0 | a"); + EXPECT_EQ(Expression("x = -7 | x = 7 | x = -7 | x = 7").toString(), + "x - 7 = 0 | x + 7 = 0"); + EXPECT_EQ(Expression("x = -7 & x = 7 & x = -7 & x = 7").toString(), + "x - 7 = 0 & x + 7 = 0"); + + EXPECT_EQ(Expression("~(x = 1)").toString(), + "x - 1 != 0"); + EXPECT_EQ(Expression("~(x != 1)").toString(), + "x - 1 = 0"); + EXPECT_EQ(Expression("~(x > 1)").toString(), + "x - 1 <= 0"); + EXPECT_EQ(Expression("~(x < 1)").toString(), + "x - 1 >= 0"); + EXPECT_EQ(Expression("~(x >= 1)").toString(), + "x - 1 < 0"); + EXPECT_EQ(Expression("~(x <= 1)").toString(), + "x - 1 > 0"); + EXPECT_EQ(Expression("~(x <= 1 | y >= 1)").toString(), + "x - 1 > 0 & y - 1 < 0"); + + EXPECT_EQ(Expression("~a").toString(), + "~a"); + EXPECT_EQ(Expression("~~a").toString(), + "a"); + EXPECT_EQ(Expression("~~~a").toString(), + "~a"); + EXPECT_EQ(Expression("~~~~~~~~~~a").toString(), + "a"); + EXPECT_EQ(Expression("~~~~~~~~~~~a").toString(), + "~a"); + + EXPECT_EQ(Expression("a & b").toString(), + "a & b"); + EXPECT_EQ(Expression("a | b").toString(), + "a | b"); + EXPECT_EQ(Expression("a -> b").toString(), + "~a | b"); + EXPECT_EQ(Expression("a <-> b").toString(), + "(a & b) | (~a & ~b)"); + EXPECT_EQ(Expression("a !<-> b").toString(), + "(a & ~b) | (~a & b)"); + + EXPECT_EQ(Expression("a & a").toString(), + "a"); + EXPECT_EQ(Expression("a | a").toString(), + "a"); + EXPECT_EQ(Expression("a -> a").toString(), + "True"); + EXPECT_EQ(Expression("a <-> a").toString(), + "True"); + EXPECT_EQ(Expression("a !<-> a").toString(), + "False"); + + EXPECT_EQ(Expression("a & ~a").toString(), + "False"); + EXPECT_EQ(Expression("a | ~a").toString(), + "True"); + EXPECT_EQ(Expression("a -> ~a").toString(), + "~a"); + EXPECT_EQ(Expression("a <-> ~a").toString(), + "False"); + EXPECT_EQ(Expression("a !<-> ~a").toString(), + "True"); + + EXPECT_EQ(Expression("~a & a").toString(), + "False"); + EXPECT_EQ(Expression("~a | a").toString(), + "True"); + EXPECT_EQ(Expression("~a -> a").toString(), + "a"); + EXPECT_EQ(Expression("~a <-> a").toString(), + "False"); + EXPECT_EQ(Expression("~a !<-> a").toString(), + "True"); + + EXPECT_EQ(Expression("~a & ~a").toString(), + "~a"); + EXPECT_EQ(Expression("~a | ~a").toString(), + "~a"); + EXPECT_EQ(Expression("~a -> ~a").toString(), + "True"); + EXPECT_EQ(Expression("~a <-> ~a").toString(), + "True"); + EXPECT_EQ(Expression("~a !<-> ~a").toString(), + "False"); + + EXPECT_EQ(Expression("a & False").toString(), + "False"); + EXPECT_EQ(Expression("a | False").toString(), + "a"); + EXPECT_EQ(Expression("a -> False").toString(), + "~a"); + EXPECT_EQ(Expression("a <-> False").toString(), + "~a"); + EXPECT_EQ(Expression("a !<-> False").toString(), + "a"); + + EXPECT_EQ(Expression("a & True").toString(), + "a"); + EXPECT_EQ(Expression("a | True").toString(), + "True"); + EXPECT_EQ(Expression("a -> True").toString(), + "True"); + EXPECT_EQ(Expression("a <-> True").toString(), + "a"); + EXPECT_EQ(Expression("a !<-> True").toString(), + "~a"); + + EXPECT_EQ(Expression("a<->(True)<->(False)").toString(), + "~a"); + EXPECT_EQ(Expression("a<->(True)!<->(False)").toString(), + "a"); + EXPECT_EQ(Expression("True & b & False & c").toString(), + "False"); + EXPECT_EQ(Expression("True | b | False | c").toString(), + "True"); + EXPECT_EQ(Expression("True | a | b | False").toString(), + "True"); + EXPECT_EQ(Expression("a<->a<->a<->a<->a<->a").toString(), + "True"); + EXPECT_EQ(Expression("a<->a<->a<->a<->a<->a<->a").toString(), + "a"); + EXPECT_EQ(Expression("a&b->b&c").toString(), + "~a | (b & c) | ~b"); + EXPECT_EQ(Expression("a&b&c").toString(), + "a & b & c"); + EXPECT_EQ(Expression("a&(b&c)").toString(), + "a & b & c"); + EXPECT_EQ(Expression("a & ~b & c").toString(), + "a & ~b & c"); + EXPECT_EQ(Expression("a | (~b & c)").toString(), + "a | (~b & c)"); + EXPECT_EQ(Expression("(a | ~b) & c").toString(), + "(a & c) | (~b & c)"); + EXPECT_EQ(Expression("~(a & b)").toString(), + "~a | ~b"); + EXPECT_EQ(Expression("~(a | b)").toString(), + "~a & ~b"); + EXPECT_EQ(Expression("~(a & b & c)").toString(), + "~a | ~b | ~c"); + EXPECT_EQ(Expression("~(a | b | c)").toString(), + "~a & ~b & ~c"); + EXPECT_EQ(Expression("~(~a & ~a)").toString(), + "a"); + EXPECT_EQ(Expression("b&c&d | a&c&d | a&b&c").toString(), + "(a & b & c) | (a & c & d) | (b & c & d)"); + EXPECT_EQ(Expression("a | (a & b)").toString(), + "a"); + EXPECT_EQ(Expression("(a & b & c) | (a & b)").toString(), + "a & b"); + EXPECT_EQ(Expression("a & (a | b)").toString(), + "a"); + EXPECT_EQ(Expression("(a | b | c) & (a | b)").toString(), + "a | b"); + EXPECT_EQ(Expression("(a & b & c) | (a & c)").toString(), + "a & c"); + EXPECT_EQ(Expression("(a & ~b) | (a & b)").toString(), + "a"); + EXPECT_EQ(Expression("(a | b | c) & (a | b)").toString(), + "a | b"); + EXPECT_EQ(Expression("~(a & b) | ~(~a & c)").toString(), + "True"); + EXPECT_EQ(Expression("~(a | b) & ~(~a | c)").toString(), + "False"); + EXPECT_EQ(Expression("(x & ~y & z) | (y & z)").toString(), + "(x & ~y & z) | (y & z)"); + EXPECT_EQ(Expression("(x | ~y | (x | ~y | z) & (y | z)) & (y | (x & ~y & z) | (y & z))").toString(), + "(x & ~y & z) | (x & y) | (y & z)"); + EXPECT_EQ(Expression("~a & b | ~c -> a <-> b !<-> c").toString(), + "(a & b & ~c) | (~a & ~b & ~c) | (~a & c) | (~b & c)"); + EXPECT_EQ(Expression("~~~a & ~~b | ~~~c -> ~~a <-> ~~b !<-> ~~c").toString(), + "(a & b & ~c) | (~a & ~b & ~c) | (~a & c) | (~b & c)"); + EXPECT_EQ(Expression("((a | b) & (a -> c)) <-> (~a -> b)").toString(), + "(a & c) | ~a | (b & c)"); + + EXPECT_EQ(Expression("x=1&a").toString(), + "a & x - 1 = 0"); + EXPECT_EQ(Expression("True & a = b").toString(), + "a - b = 0"); +} + +TEST(SimplifyLogicTests, simplifyLargeTest) { + EXPECT_EQ(Expression("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a").toString(), + "a"); + + EXPECT_EQ(Expression("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~a").toString(), + "~a"); + + // TODO: for benchmark + // EXPECT_EQ(Expression("a<->b<->c<->d<->e<->f").toString(), + + EXPECT_EQ(Expression("a<->b<->c<->d<->e").toString(), + "(a & b & c & d & e) | " + "(a & b & c & ~d & ~e) | " + "(a & b & ~c & d & ~e) | " + "(a & b & ~c & ~d & e) | " + "(a & ~b & c & d & ~e) | " + "(a & ~b & c & ~d & e) | " + "(a & ~b & ~c & d & e) | " + "(a & ~b & ~c & ~d & ~e) | " + "(~a & b & c & d & ~e) | " + "(~a & b & c & ~d & e) | " + "(~a & b & ~c & d & e) | " + "(~a & b & ~c & ~d & ~e) | " + "(~a & ~b & c & d & e) | " + "(~a & ~b & c & ~d & ~e) | " + "(~a & ~b & ~c & d & ~e) | " + "(~a & ~b & ~c & ~d & e)"); + + EXPECT_EQ(Expression("a & b & c & d & e & f & g & h & i & j & k & l & m & n & o & p & q & r & s & t & u & v & w & x & y & z & x_1 & x_2 & x_3 | x_4").toString(), + "(a & b & c & d & e & f & g & h & i & j & k & l & m & n & o & p & q & r & s & t & u & v & w & x & x_1 & x_2 & x_3 & y & z) | x_4"); + + EXPECT_EQ(Expression("a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | x_1 | x_2 | x_3 & x_4").toString(), + "a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | x_1 | x_2 | (x_3 & x_4) | y | z"); +} diff --git a/tests/src/overall/simplify/SimplifyMinMaxTests.cpp b/tests/src/overall/simplify/SimplifyMinMaxTests.cpp new file mode 100644 index 000000000..29eae8cf8 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyMinMaxTests.cpp @@ -0,0 +1,31 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyMinMaxTests, simplifyTest) { + EXPECT_EQ(Expression("min(1)").toString(), "1"); + EXPECT_EQ(Expression("min(1,2)").toString(), "1"); + EXPECT_EQ(Expression("min(1,2,3)").toString(), "1"); + EXPECT_EQ(Expression("min(1, 2, 3, 4)").toString(), "1"); + EXPECT_EQ(Expression("min(-1, -2, -3, -4)").toString(), "-4"); + EXPECT_EQ(Expression("min(x)").toString(), "x"); + EXPECT_EQ(Expression("min(1,x)").toString(), "min(x, 1)"); + EXPECT_EQ(Expression("min(1,2,x)").toString(), "min(x, 1)"); + EXPECT_EQ(Expression("min(1, 2, x, 4)").toString(), "min(x, 1)"); + EXPECT_EQ(Expression("min(-1, x, y, -4)").toString(), "min(x, y, -4)"); + EXPECT_EQ(Expression("min(E, x, y, z)").toString(), "min(x, y, z, E)"); + + EXPECT_EQ(Expression("max(1)").toString(), "1"); + EXPECT_EQ(Expression("max(1,2)").toString(), "2"); + EXPECT_EQ(Expression("max(1,2,3)").toString(), "3"); + EXPECT_EQ(Expression("max(1, 2, 3, 4)").toString(), "4"); + EXPECT_EQ(Expression("max(-1, -2, -3, -4)").toString(), "-1"); + EXPECT_EQ(Expression("max(x)").toString(), "x"); + EXPECT_EQ(Expression("max(1,x)").toString(), "max(x, 1)"); + EXPECT_EQ(Expression("max(1,2,x)").toString(), "max(x, 2)"); + EXPECT_EQ(Expression("max(1, 2, x, 4)").toString(), "max(x, 4)"); + EXPECT_EQ(Expression("max(-1, x, y, -4)").toString(), "max(x, y, -1)"); + EXPECT_EQ(Expression("max(E, x, y, z)").toString(), "max(x, y, z, E)"); +} diff --git a/tests/src/overall/simplify/SimplifyPowersTests.cpp b/tests/src/overall/simplify/SimplifyPowersTests.cpp new file mode 100644 index 000000000..c8edf0063 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyPowersTests.cpp @@ -0,0 +1,92 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyPowersTests, simplifyTest) { + EXPECT_EQ(Expression("sqrt0").toString(), + "0"); + EXPECT_EQ(Expression("sqrt(25)").toString(), + "5"); + EXPECT_EQ(Expression("sqrt(144/25)").toString(), + "12/5"); + EXPECT_EQ(Expression("sqrt(50)").toString(), + "5 sqrt(2)"); + EXPECT_EQ(Expression("sqrt(26)").toString(), + "sqrt(26)"); + EXPECT_EQ(Expression("sqrt(145/26)").toString(), + "sqrt(3770)/26"); + EXPECT_EQ(Expression("sqrt(169/3)").toString(), + "(13 sqrt(3))/3"); + EXPECT_EQ(Expression("sqrt(168/25)").toString(), + "(2 sqrt(42))/5"); + EXPECT_EQ(Expression("root(4, 2)").toString(), + "2"); + EXPECT_EQ(Expression("root(8, 3)").toString(), + "2"); + EXPECT_EQ(Expression("root(16, 4)").toString(), + "2"); + EXPECT_EQ(Expression("root(27, 3)").toString(), + "3"); + EXPECT_EQ(Expression("root(0, 3)").toString(), + "0"); + + EXPECT_EQ(Expression("4^(1/2)").toString(), + "2"); + EXPECT_EQ(Expression("8^(1/3)").toString(), + "2"); + EXPECT_EQ(Expression("8^(4/3)").toString(), + "16"); + EXPECT_EQ(Expression("7 2^(2/3)").toString(), + "7 root(4, 3)"); + EXPECT_EQ(Expression("2^(2/3) 3^(2/3)").toString(), + "root(36, 3)"); + EXPECT_EQ(Expression("2^(2/3) 7^(2/3) 3^(3/4)").toString(), + "root(196, 3) root(27, 4)"); + EXPECT_EQ(Expression("2^(2/3) 1/7^(2/3) 3^(3/4)").toString(), + "(root(28, 3) root(27, 4))/7"); + + EXPECT_EQ(Expression("1/sqrt(3)").toString(), + "sqrt(3)/3"); + EXPECT_EQ(Expression("1/root(3, 3)").toString(), + "root(9, 3)/3"); + EXPECT_EQ(Expression("1/root(3, 4)").toString(), + "root(27, 4)/3"); + EXPECT_EQ(Expression("sqrt(2) / (sqrt(2/3) sqrt(8))").toString(), + "sqrt(6)/4"); + EXPECT_EQ(Expression("(sqrt(8) sqrt(2/3)) / sqrt(2)").toString(), + "(2 sqrt(6))/3"); + + EXPECT_EQ(Expression("(x/y)^2").toString(), + "(x^2)/(y^2)"); + EXPECT_EQ(Expression("(x/y)^(1/2)").toString(), + "sqrt(x/y)"); + EXPECT_EQ(Expression("(x/y)^(1/3)").toString(), + "root(x/y, 3)"); + EXPECT_EQ(Expression("(x/y)^(-1/2)").toString(), + "1/sqrt(x/y)"); + EXPECT_EQ(Expression("(x/y)^(-1/3)").toString(), + "1/root(x/y, 3)"); + EXPECT_EQ(Expression("(x/y)^x").toString(), + "(x/y)^x"); + EXPECT_EQ(Expression("(x/y)^(1/x)").toString(), + "root(x/y, x)"); + + EXPECT_EQ(Expression("sqrt(x^2)").toString(), + "sqrt(x^2)"); + EXPECT_EQ(Expression("sqrt(x)^2").toString(), + "x"); + EXPECT_EQ(Expression("(x^10)^(1/10)").toString(), + "root(x^10, 10)"); + EXPECT_EQ(Expression("(x^(1/10))^10").toString(), + "x"); + EXPECT_EQ(Expression("(x^3)^(1/3)").toString(), + "root(x^3, 3)"); + EXPECT_EQ(Expression("(x^(1/3))^3").toString(), + "x"); + EXPECT_EQ(Expression("root(x^(-2), -2)").toString(), + "1/sqrt(1/(x^2))"); + EXPECT_EQ(Expression("root(0, x)").toString(), + "0"); +} diff --git a/tests/src/overall/simplify/SimplifyTests.cpp b/tests/src/overall/simplify/SimplifyTests.cpp new file mode 100644 index 000000000..e8e4be571 --- /dev/null +++ b/tests/src/overall/simplify/SimplifyTests.cpp @@ -0,0 +1,719 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyTests, simplifyTest) { + EXPECT_EQ(Expression("3 + 5").toString(), + "8"); + EXPECT_EQ(Expression("3 + -5").toString(), + "-2"); + EXPECT_EQ(Expression("-3 + 5").toString(), + "2"); + EXPECT_EQ(Expression("2 * 2").toString(), + "4"); + EXPECT_EQ(Expression("-2 * 2").toString(), + "-4"); + EXPECT_EQ(Expression("2 * -2").toString(), + "-4"); + EXPECT_EQ(Expression("2 * 3!").toString(), + "12"); + EXPECT_EQ(Expression("1 / 3").toString(), + "1/3"); + EXPECT_EQ(Expression("0 / 3").toString(), + "0"); + EXPECT_EQ(Expression("2 ^ 2").toString(), + "4"); + EXPECT_EQ(Expression("-2 ^ 2").toString(), + "-4"); + EXPECT_EQ(Expression("2 ^ -2").toString(), + "1/4"); + EXPECT_EQ(Expression("2 ^ 3!").toString(), + "40320"); + EXPECT_EQ(Expression("0^1").toString(), + "0"); + EXPECT_EQ(Expression("2^0").toString(), + "1"); + EXPECT_EQ(Expression("(-7)^10").toString(), + "282475249"); + EXPECT_EQ(Expression("2^0").toString(), + "1"); + EXPECT_EQ(Expression("0.001-0.002").toString(), + "-1/1000"); + EXPECT_EQ(Expression("(0.004)/(0.002+0.002)").toString(), + "1"); + EXPECT_EQ(Expression("2 + 2 * 2").toString(), + "6"); + EXPECT_EQ(Expression("2^2^2^2").toString(), + "256"); + EXPECT_EQ(Expression("(2 + 2) * 2").toString(), + "8"); + EXPECT_EQ(Expression("(2-2)").toString(), + "0"); + EXPECT_EQ(Expression("(2 + 2) / (2 ^ 2 - 2) * 2").toString(), + "4"); + EXPECT_EQ(Expression("((((2))))").toString(), + "2"); + EXPECT_EQ(Expression("(((((2 + 2) + 2) + 2) + 2) + 2)").toString(), + "12"); + EXPECT_EQ(Expression("(((2 ^ 2)^2))").toString(), + "16"); + EXPECT_EQ(Expression("-5").toString(), + "-5"); + EXPECT_EQ(Expression("--5").toString(), + "5"); + EXPECT_EQ(Expression("---5").toString(), + "-5"); + EXPECT_EQ(Expression("+5").toString(), + "5"); + EXPECT_EQ(Expression("5*-3").toString(), + "-15"); + EXPECT_EQ(Expression("----5+++5").toString(), + "10"); + EXPECT_EQ(Expression("5----4").toString(), + "9"); + EXPECT_EQ(Expression("5+-+-4").toString(), + "9"); + EXPECT_EQ(Expression("5*+++---4").toString(), + "-20"); + EXPECT_EQ(Expression("1^-1").toString(), + "1"); + EXPECT_EQ(Expression("1.").toString(), + "1"); + EXPECT_EQ(Expression(".1").toString(), + "1/10"); + EXPECT_EQ(Expression("2+.1+.1+1.+1.").toString(), + "21/5"); + EXPECT_EQ(Expression("1/10^-20").toString(), + "100000000000000000000"); + EXPECT_EQ(Expression("1/10^--20").toString(), + "1/100000000000000000000"); + EXPECT_EQ(Expression("1/10^---20").toString(), + "100000000000000000000"); + EXPECT_EQ(Expression("36/3(8-6)").toString(), + "24"); + EXPECT_EQ(Expression("36/(8-6)3").toString(), + "54"); + EXPECT_EQ(Expression("((((((5)/(8)))/(1)))/(((((((9)/(4)))/(0)))/(5))))").toString(), + "0"); + EXPECT_EQ(Expression("2 mod 2").toString(), + "0"); + EXPECT_EQ(Expression("5 mod -3").toString(), + "-1"); + EXPECT_EQ(Expression("-10 mod 4").toString(), + "2"); + EXPECT_EQ(Expression("-51 mod -11").toString(), + "-7"); + EXPECT_EQ(Expression("2 mod 3 * 4 / 2").toString(), + "2"); + EXPECT_EQ(Expression("2 + 3 * 4 mod 5").toString(), + "4"); + EXPECT_EQ(Expression("2^3 mod 3^2").toString(), + "8"); + EXPECT_EQ(Expression("2 + 3 * 4 mod 5 / 6").toString(), + "14 mod (5/6)"); + EXPECT_EQ(Expression("2%").toString(), + "1/50"); + EXPECT_EQ(Expression("2.35%").toString(), + "47/2000"); + EXPECT_EQ(Expression("1100*4.76%").toString(), + "1309/25"); + EXPECT_EQ(Expression("2.35%%%%").toString(), + "47/2000000000"); + EXPECT_EQ(Expression("1100*4.76%1100*4.76%").toString(), + "1713481/625"); + + EXPECT_EQ(Expression("E").toString(), + "E"); + EXPECT_EQ(Expression("Pi").toString(), + "Pi"); + EXPECT_EQ(Expression("E^101-E^101").toString(), + "0"); + EXPECT_EQ(Expression("E E Pi E").toString(), + "E^3 Pi"); + EXPECT_EQ(Expression("E Pi E^2 Pi").toString(), + "E^3 Pi^2"); + EXPECT_EQ(Expression("Pi^5 E^2 Pi").toString(), + "E^2 Pi^6"); + EXPECT_EQ(Expression("E Pi E^2 Pi^3 E^2 Pi^3 E^5 Pi^5").toString(), + "E^10 Pi^12"); + EXPECT_EQ(Expression("ln(E^E) / ln(E^E) - 1").toString(), + "0"); + EXPECT_EQ(Expression("8E").toString(), + "8 E"); + EXPECT_EQ(Expression("8Pi").toString(), + "8 Pi"); + EXPECT_EQ(Expression("E8").toString(), + "8 E"); + EXPECT_EQ(Expression("Pi8").toString(), + "8 Pi"); + EXPECT_EQ(Expression("exp100").toString(), + "E^100"); + EXPECT_EQ(Expression("E^101").toString(), + "E^101"); + EXPECT_EQ(Expression("E^(-101)").toString(), + "1/(E^101)"); + EXPECT_EQ(Expression("sin10").toString(), + "sin(10)"); + EXPECT_EQ(Expression("cos10").toString(), + "cos(10)"); + EXPECT_EQ(Expression("tan10").toString(), + "tan(10)"); + EXPECT_EQ(Expression("cot10").toString(), + "cot(10)"); + EXPECT_EQ(Expression("sec10").toString(), + "sec(10)"); + EXPECT_EQ(Expression("csc10").toString(), + "csc(10)"); + EXPECT_EQ(Expression("asin0.9").toString(), + "asin(9/10)"); + EXPECT_EQ(Expression("acos0.9").toString(), + "acos(9/10)"); + EXPECT_EQ(Expression("atan10").toString(), + "atan(10)"); + EXPECT_EQ(Expression("acot10").toString(), + "acot(10)"); + EXPECT_EQ(Expression("asec10").toString(), + "asec(10)"); + EXPECT_EQ(Expression("acsc10").toString(), + "acsc(10)"); + EXPECT_EQ(Expression("sinh10").toString(), + "sinh(10)"); + EXPECT_EQ(Expression("cosh10").toString(), + "cosh(10)"); + EXPECT_EQ(Expression("tanh10").toString(), + "tanh(10)"); + EXPECT_EQ(Expression("coth10").toString(), + "coth(10)"); + EXPECT_EQ(Expression("sech10").toString(), + "sech(10)"); + EXPECT_EQ(Expression("csch10").toString(), + "csch(10)"); + EXPECT_EQ(Expression("asinh0.9").toString(), + "asinh(9/10)"); + EXPECT_EQ(Expression("acosh1.9").toString(), + "acosh(19/10)"); + EXPECT_EQ(Expression("atanh0.9").toString(), + "atanh(9/10)"); + EXPECT_EQ(Expression("acoth1.9").toString(), + "acoth(19/10)"); + EXPECT_EQ(Expression("asech0.9").toString(), + "asech(9/10)"); + EXPECT_EQ(Expression("acsch1.9").toString(), + "acsch(19/10)"); + EXPECT_EQ(Expression("((2))*sqrt2").toString(), + "2 sqrt(2)"); + EXPECT_EQ(Expression("sqrt2*((2))").toString(), + "2 sqrt(2)"); + EXPECT_EQ(Expression("sin(1)^2").toString(), + "sin(1)^2"); + EXPECT_EQ(Expression("sin(-1)^2").toString(), + "sin(1)^2"); + EXPECT_EQ(Expression("sin1^2").toString(), + "sin(1)^2"); + EXPECT_EQ(Expression("sin(10^30)").toString(), + "sin(1000000000000000000000000000000)"); + EXPECT_EQ(Expression("sin(1)^2 + cos(1)^2").toString(), + "1"); + EXPECT_EQ(Expression("3sin(1)^2 + 3cos(1)^2").toString(), + "3"); + EXPECT_EQ(Expression("2!*E").toString(), + "2 E"); + EXPECT_EQ(Expression("E*2!").toString(), + "2 E"); + EXPECT_EQ(Expression("sqrt((1-cos(2*(Pi/3)))/2)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("2*sqrt((1-cos(2*(Pi/3)))/2)*cos(Pi/3)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("-sin(2)").toString(), + "-sin(2)"); + EXPECT_EQ(Expression("2^(3/2)").toString(), + "2 sqrt(2)"); + EXPECT_EQ(Expression("sqrt((-1)^2)").toString(), + "1"); + EXPECT_EQ(Expression("sqrt(sqrt5)").toString(), + "root(5, 4)"); + EXPECT_EQ(Expression("sqrt(sqrt(-5))").toString(), + "sqrt(I sqrt(5))"); + EXPECT_EQ(Expression("sqrt4!").toString(), + "2"); + EXPECT_EQ(Expression("(sqrt4)!").toString(), + "2"); + EXPECT_EQ(Expression("sqrt4*2!").toString(), + "4"); + EXPECT_EQ(Expression("abs(-5)").toString(), + "5"); + EXPECT_EQ(Expression("abs((-5))").toString(), + "5"); + EXPECT_EQ(Expression("sign(10)").toString(), + "1"); + EXPECT_EQ(Expression("sign(0)").toString(), + "0"); + EXPECT_EQ(Expression("sign(-5)").toString(), + "-1"); + EXPECT_EQ(Expression("frac(2,4)").toString(), + "1/2"); + EXPECT_EQ(Expression("frac(2,2,4)").toString(), + "5/2"); + EXPECT_EQ(Expression("sqr(3)").toString(), + "9"); + EXPECT_EQ(Expression("pow(2,4)").toString(), + "16"); + EXPECT_EQ(Expression("1deg").toString(), + "Pi/180"); + EXPECT_EQ(Expression("60deg").toString(), + "Pi/3"); + EXPECT_EQ(Expression("adeg").toString(), + "(Pi a)/180"); + EXPECT_EQ(Expression("floor(2/3)").toString(), + "0"); + EXPECT_EQ(Expression("floor(-2/3)").toString(), + "-1"); + EXPECT_EQ(Expression("ceil(2/3)").toString(), + "1"); + EXPECT_EQ(Expression("ceil(-2/3)").toString(), + "0"); + EXPECT_EQ(Expression("cos(5) - cos(-5)").toString(), + "0"); + + EXPECT_EQ(Expression("x_1").toString(), + "x_1"); + EXPECT_EQ(Expression("x+x_1").toString(), + "x + x_1"); + EXPECT_EQ(Expression("x*x_1").toString(), + "x x_1"); + EXPECT_EQ(Expression("x_2^2").toString(), + "x_2^2"); + EXPECT_EQ(Expression("sin(x_1)").toString(), + "sin(x_1)"); + + EXPECT_EQ(Expression("a*0").toString(), + "0"); + EXPECT_EQ(Expression("0*a").toString(), + "0"); + EXPECT_EQ(Expression("1*a").toString(), + "a"); + EXPECT_EQ(Expression("a*1").toString(), + "a"); + EXPECT_EQ(Expression("0^a").toString(), + "0"); + EXPECT_EQ(Expression("1^a").toString(), + "1"); + EXPECT_EQ(Expression("(a b)^0").toString(), + "1"); + EXPECT_EQ(Expression("(a + b)^-1").toString(), + "1/(a + b)"); + EXPECT_EQ(Expression("(a + b)^-2").toString(), + "1/(a^2 + 2 a b + b^2)"); + EXPECT_EQ(Expression("(a b)^-1").toString(), + "1/(a b)"); + EXPECT_EQ(Expression("(a b)^-2").toString(), + "1/(a^2 b^2)"); + + EXPECT_EQ(Expression("2.a").toString(), + "2 a"); + EXPECT_EQ(Expression("a.2").toString(), + "a/5"); + EXPECT_EQ(Expression("a+a").toString(), + "2 a"); + EXPECT_EQ(Expression("a-a").toString(), + "0"); + EXPECT_EQ(Expression("-a").toString(), + "-a"); + EXPECT_EQ(Expression("+a").toString(), + "a"); + EXPECT_EQ(Expression("--a").toString(), + "a"); + EXPECT_EQ(Expression("---a").toString(), + "-a"); + EXPECT_EQ(Expression("b--a").toString(), + "a + b"); + EXPECT_EQ(Expression("b---a").toString(), + "-a + b"); + EXPECT_EQ(Expression("-(-(-(-(-(-(-(-a)))))))").toString(), + "a"); + EXPECT_EQ(Expression("-(-(-(-(-(-(-(-(-a))))))))").toString(), + "-a"); + EXPECT_EQ(Expression("--------a").toString(), + "a"); + EXPECT_EQ(Expression("---------a").toString(), + "-a"); + EXPECT_EQ(Expression("abcdefg").toString(), + "a b c d e f g"); + EXPECT_EQ(Expression("a+b+c+d+e+f+g").toString(), + "a + b + c + d + e + f + g"); + EXPECT_EQ(Expression("(a+b)-b").toString(), + "a"); + EXPECT_EQ(Expression("a-b-c").toString(), + "a - b - c"); + EXPECT_EQ(Expression("a-(b-c)").toString(), + "a - b + c"); + EXPECT_EQ(Expression("(a-b)-c").toString(), + "a - b - c"); + EXPECT_EQ(Expression("(a+b)*(a+b)+a*b*c-c*a*b+b*a").toString(), + "a^2 + 3 a b + b^2"); + EXPECT_EQ(Expression("x/y/z").toString(), + "x/(y z)"); + EXPECT_EQ(Expression("x/(y/z)").toString(), + "(x z)/y"); + EXPECT_EQ(Expression("(x/y)/z").toString(), + "x/(y z)"); + EXPECT_EQ(Expression("x^y^z").toString(), + "(x^y)^z"); + EXPECT_EQ(Expression("x^(y^z)").toString(), + "x^(y^z)"); + EXPECT_EQ(Expression("(x^y)^z").toString(), + "(x^y)^z"); + EXPECT_EQ(Expression("(a+b)^2").toString(), + "a^2 + 2 a b + b^2"); + EXPECT_EQ(Expression("(a+b)^3").toString(), + "a^3 + 3 a^2 b + 3 a b^2 + b^3"); + EXPECT_EQ(Expression("1*(a+b)^3").toString(), + "a^3 + 3 a^2 b + 3 a b^2 + b^3"); + EXPECT_EQ(Expression("(a+b)^4").toString(), + "a^4 + 4 a^3 b + 6 a^2 b^2 + 4 a b^3 + b^4"); + EXPECT_EQ(Expression("5^x 9").toString(), + "9*5^x"); + EXPECT_EQ(Expression("9 5^x").toString(), + "9*5^x"); + EXPECT_EQ(Expression("9 5^x 9").toString(), + "81*5^x"); + EXPECT_EQ(Expression("5^x 99").toString(), + "99*5^x"); + EXPECT_EQ(Expression("99 5^x").toString(), + "99*5^x"); + EXPECT_EQ(Expression("99 5^x 99").toString(), + "9801*5^x"); + EXPECT_EQ(Expression("5^x a").toString(), + "a 5^x"); + EXPECT_EQ(Expression("a 5^x").toString(), + "a 5^x"); + EXPECT_EQ(Expression("a 5^x a").toString(), + "a^2*5^x"); + EXPECT_EQ(Expression("2 5^x 6^y 7^z x^2 y^3").toString(), + "2 x^2 y^3*5^x 6^y 7^z"); + EXPECT_EQ(Expression("1*(a+b)*1").toString(), + "a + b"); + EXPECT_EQ(Expression("-1*(a+b)*1").toString(), + "-a - b"); + EXPECT_EQ(Expression("1*(a+b)*-1").toString(), + "-a - b"); + EXPECT_EQ(Expression("-1*(a+b)*-1").toString(), + "a + b"); + EXPECT_EQ(Expression("1+(a+b)+1").toString(), + "a + b + 2"); + EXPECT_EQ(Expression("-1+(a+b)+1").toString(), + "a + b"); + EXPECT_EQ(Expression("1+(a+b)-1").toString(), + "a + b"); + EXPECT_EQ(Expression("-1+(a+b)-1").toString(), + "a + b - 2"); + EXPECT_EQ(Expression("2*(a+b)*2").toString(), + "4 a + 4 b"); + EXPECT_EQ(Expression("-2*(a+b)*2").toString(), + "-4 a - 4 b"); + EXPECT_EQ(Expression("2*(a+b)*-2").toString(), + "-4 a - 4 b"); + EXPECT_EQ(Expression("-2*(a+b)*-2").toString(), + "4 a + 4 b"); + EXPECT_EQ(Expression("2+(a+b)+2").toString(), + "a + b + 4"); + EXPECT_EQ(Expression("-2+(a+b)+2").toString(), + "a + b"); + EXPECT_EQ(Expression("2+(a+b)-2").toString(), + "a + b"); + EXPECT_EQ(Expression("-2+(a+b)-2").toString(), + "a + b - 4"); + EXPECT_EQ(Expression("(a+b)+(a+b)-(a+b)").toString(), + "a + b"); + EXPECT_EQ(Expression("(a+b)+(a+b)+(-(a+b))").toString(), + "a + b"); + EXPECT_EQ(Expression("(a+b)+(a+b)+(-(-(a+b)))").toString(), + "3 a + 3 b"); + EXPECT_EQ(Expression("-a^2 + b").toString(), + "-a^2 + b"); + EXPECT_EQ(Expression("-a^2 c + b").toString(), + "-a^2 c + b"); + EXPECT_EQ(Expression("-a^2 d - a^2 c + b").toString(), + "-a^2 c - a^2 d + b"); + EXPECT_EQ(Expression("abc").toString(), + "a b c"); + EXPECT_EQ(Expression("d^abc").toString(), + "b c d^a"); + EXPECT_EQ(Expression("abc^d").toString(), + "a b c^d"); + EXPECT_EQ(Expression("(a+b(a+b(a+b(a+b))))").toString(), + "a b^3 + a b^2 + a b + a + b^4"); + EXPECT_EQ(Expression("(ab+(ab+(ab+(ab))))").toString(), + "4 a b"); + EXPECT_EQ(Expression("((a+b+(a+c)+(1+v))+((a+c(abc(aaa))+v)c+d))((c)((d+d+d)b)a)").toString(), + "3 a^5 b^2 c^4 d + 3 a^2 b c^2 d + 6 a^2 b c d + 3 a b^2 c d + 3 a b c^2 d v + 3 a b c^2 d + 3 a b c d^2 + " + "3 a b c d v + 3 a b c d"); + EXPECT_EQ(Expression("2/(a + 2) + b/(a + 2)").toString(), + "(b + 2)/(a + 2)"); + EXPECT_EQ(Expression("c * 2^(a + 2) + b^(a + 2)").toString(), + "b^(a + 2) + 2^(a + 2) c"); + EXPECT_EQ(Expression("2^(a + 2) * b^(a + 2)").toString(), + "b^(a + 2) 2^(a + 2)"); + EXPECT_EQ(Expression("2 a b c + a b + a b c").toString(), + "3 a b c + a b"); + + EXPECT_EQ(Expression("2%a").toString(), + "a/50"); + EXPECT_EQ(Expression("2!!!!a!!!").toString(), + "2 a!!!"); + EXPECT_EQ(Expression("sin a").toString(), + "sin(a)"); + EXPECT_EQ(Expression("s i n a").toString(), + "a i n s"); + EXPECT_EQ(Expression("a(2)").toString(), + "2 a"); + EXPECT_EQ(Expression("(2)a").toString(), + "2 a"); + EXPECT_EQ(Expression("Ea").toString(), + "E a"); + EXPECT_EQ(Expression("aE").toString(), + "E a"); + EXPECT_EQ(Expression("aEE").toString(), + "E^2 a"); + EXPECT_EQ(Expression("EEa").toString(), + "E^2 a"); + EXPECT_EQ(Expression("x123").toString(), + "123 x"); + EXPECT_EQ(Expression("x^y!").toString(), + "(x^y)!"); + EXPECT_EQ(Expression("lnE").toString(), + "1"); + EXPECT_EQ(Expression("lncossinE").toString(), + "ln(cos(sin(E)))"); + EXPECT_EQ(Expression("ln cos sin a").toString(), + "ln(cos(sin(a)))"); + EXPECT_EQ(Expression("frac(x,y)").toString(), + "x/y"); + EXPECT_EQ(Expression("pow(x,y)").toString(), + "x^y"); + EXPECT_EQ(Expression("frac(x,y,z)").toString(), + "x + y/z"); + + EXPECT_EQ(Expression("sqrt(x) + x").toString(), + "x + sqrt(x)"); + EXPECT_EQ(Expression("sqrt(x) - x").toString(), + "-x + sqrt(x)"); + EXPECT_EQ(Expression("sqrt(x) * sqrt(x)").toString(), + "x"); + EXPECT_EQ(Expression("x/(sqrt(x) - x)").toString(), + "-1 - sqrt(x)/(x - sqrt(x))"); + EXPECT_EQ(Expression("x/(2 sqrt(x) - x)").toString(), + "-1 - (2 sqrt(x))/(x - 2 sqrt(x))"); + EXPECT_EQ(Expression("(x-1)/(sqrt(x) - x)").toString(), + "-1 - 1/sqrt(x)"); + EXPECT_EQ(Expression("(x-1)/(2 sqrt(x) - x)").toString(), + "-1 - (2 sqrt(x) - 1)/(x - 2 sqrt(x))"); + EXPECT_EQ(Expression("(x-1)/(sqrt(x)/2 - x)").toString(), + "-1 - (sqrt(x) - 2)/(2 x - sqrt(x))"); + EXPECT_EQ(Expression("(x-1)/(root(x, 3) - x)").toString(), + "-1 - (root(x, 3) - 1)/(x - root(x, 3))"); + EXPECT_EQ(Expression("(x-1)/(2 root(x, 3) - x)").toString(), + "-1 - (2 root(x, 3) - 1)/(x - 2 root(x, 3))"); + EXPECT_EQ(Expression("(x-1)/(root(x, 3)/2 - x)").toString(), + "-1 - (root(x, 3) - 2)/(2 x - root(x, 3))"); + EXPECT_EQ(Expression("(x-1)/(x^(4/3) - x)").toString(), + "(x - 1)/(x^(4/3) - x)"); + EXPECT_EQ(Expression("(x-1)/(2 x^(4/3) - x)").toString(), + "(x - 1)/(2 x^(4/3) - x)"); + EXPECT_EQ(Expression("x (sqrt(2) + sqrt(3))").toString(), + "(sqrt(3) + sqrt(2)) x"); + EXPECT_EQ(Expression("x (sqrt(2) + sqrt(3)) y sqrt(2)").toString(), + "(sqrt(6) + 2) x y"); + EXPECT_EQ(Expression("a + sqrt(2) x + sqrt(3) x + Pi^4 x + 1").toString(), + "a + (Pi^4 + sqrt(3) + sqrt(2)) x + 1"); + EXPECT_EQ(Expression("a - sqrt(2) x - sqrt(3) x - Pi^4 x + 1").toString(), + "a + (-Pi^4 - sqrt(3) - sqrt(2)) x + 1"); + EXPECT_EQ(Expression("x Pi^4 ln(5) + x E^2 sin(1) sinh(2)").toString(), + "(E^2 sinh(2) sin(1) + Pi^4 ln(5)) x"); + EXPECT_EQ(Expression("(a+b) (-sqrt2 + sqrt3 - sqrt5)").toString(), + "(sqrt(3) - sqrt(5) - sqrt(2)) a + (sqrt(3) - sqrt(5) - sqrt(2)) b"); + EXPECT_EQ(Expression("(sqrt(2) x + sqrt(3) x + Pi^4 x + 1) / (sqrt(2) + sqrt(3) + Pi^4)").toString(), + "x + 1/(Pi^4 + sqrt(3) + sqrt(2))"); + EXPECT_EQ(Expression("sqrt(1/(7 + x^2)) + sqrt(x)/(sqrt(x) + 1)").toString(), + "sqrt(1/(x^2 + 7)) + 1 - 1/(sqrt(x) + 1)"); + EXPECT_EQ(Expression("root(1/(7 + x^2), 3) + sqrt(x)/(sqrt(x) + 1)").toString(), + "root(1/(x^2 + 7), 3) + 1 - 1/(sqrt(x) + 1)"); + EXPECT_EQ(Expression("ln(a) (2x + 2)").toString(), + "ln(a) (2 x + 2)"); + EXPECT_EQ(Expression("log(a, 2) (2x + 2)").toString(), + "log(a, 2) (2 x + 2)"); + EXPECT_EQ(Expression("x / (t sin(x))").toString(), + "(x csc(x))/t"); + EXPECT_EQ(Expression("root(x, x) mod 1").toString(), + "root(x, x) mod 1"); + EXPECT_EQ(Expression("root(x, y/x) mod 1").toString(), + "(x^(x/y)) mod 1"); + + EXPECT_EQ(Expression("(a+b+1-1)^1000/(a+b+1-1)^998").toString(), + "a^2 + 2 a b + b^2"); + EXPECT_EQ(Expression("(a+b)^1000/(a+b)^998").toString(), + "a^2 + 2 a b + b^2"); + EXPECT_EQ(Expression("sin(asin(a+b+1-1))^1000/(a+b+1-1)^998").toString(), + "a^2 + 2 a b + b^2"); + EXPECT_EQ(Expression("a(10^100)/10^99").toString(), + "10 a"); + + EXPECT_EQ(Expression("-sin(x)").toString(), + "-sin(x)"); + EXPECT_EQ(Expression("-sin(x) + sin(2)").toString(), + "-sin(x) + sin(2)"); + EXPECT_EQ(Expression("-3sin(E)").toString(), + "-3 sin(E)"); + EXPECT_EQ(Expression("1-(sin(x)+1)").toString(), + "-sin(x)"); + EXPECT_EQ(Expression("1/(sin(x)+1)").toString(), + "1/(sin(x) + 1)"); + EXPECT_EQ(Expression("(x+1)^3").toString(), + "x^3 + 3 x^2 + 3 x + 1"); + EXPECT_EQ(Expression("(x+1)^(-3)").toString(), + "1/(x^3 + 3 x^2 + 3 x + 1)"); + EXPECT_EQ(Expression("(sin(x)+1)^3").toString(), + "sin(x)^3 + 3 sin(x)^2 + 3 sin(x) + 1"); + EXPECT_EQ(Expression("(sin(x)+1)^(-3)").toString(), + "1/(sin(x)^3 + 3 sin(x)^2 + 3 sin(x) + 1)"); + EXPECT_EQ(Expression("(sin(x)+1)^(-4)").toString(), + "1/(sin(x)^4 + 4 sin(x)^3 + 6 sin(x)^2 + 4 sin(x) + 1)"); + EXPECT_EQ(Expression("(x)sin(a)").toString(), + "sin(a) x"); + EXPECT_EQ(Expression("tan(4 a^3 b) + cot(4 a b^3) + b^4 + sin(a^4) + cos(6 a^2 b^2)").toString(), + "sin(a^4) + tan(4 a^3 b) + cos(6 a^2 b^2) + cot(4 a b^3) + b^4"); + EXPECT_EQ(Expression("tan(4 a^3 b) + cot(sin(4 a b^3)) + b^4 + asin(sin(a^4)) + cos(6 a^2 b^2)").toString(), + "asin(sin(a^4)) + tan(4 a^3 b) + cos(6 a^2 b^2) + cot(sin(4 a b^3)) + b^4"); + EXPECT_EQ(Expression("tan(4 a_1^3 b) + cot(sin(4 a_1 b^3)) + b^4 + asin(sin(a_1^4)) + cos(6 a_1^2 b^2)").toString(), + "asin(sin(a_1^4)) + tan(4 a_1^3 b) + cos(6 a_1^2 b^2) + cot(sin(4 a_1 b^3)) + b^4"); + EXPECT_EQ(Expression("a!!!!!!!!!!").toString(), + "a!!!!!!!!!!"); + EXPECT_EQ(Expression("a% * a!!! * a! * a!!").toString(), + "(a a! a!! a!!!)/100"); + EXPECT_EQ(Expression("a! sin(a)").toString(), + "a! sin(a)"); + EXPECT_EQ(Expression("sin(a) a!").toString(), + "a! sin(a)"); + EXPECT_EQ(Expression("sin(a) a").toString(), + "a sin(a)"); + EXPECT_EQ(Expression("a sin(a)").toString(), + "a sin(a)"); + EXPECT_EQ(Expression("cos(b) sin(a)").toString(), + "sin(a) cos(b)"); + EXPECT_EQ(Expression("cos(b) log(b, a)").toString(), + "log(b, a) cos(b)"); + EXPECT_EQ(Expression("cos(a) log(b, c)").toString(), + "log(b, c) cos(a)"); + EXPECT_EQ(Expression("cos(b^2) log(b, c)").toString(), + "log(b, c) cos(b^2)"); + EXPECT_EQ(Expression("(x + y^3)^2 * sin(x)/ln(2)/x^2 - (2 sin(x) y^3)/(x ln(2))").toString(), + "sin(x)/ln(2) + (y^6 sin(x))/(x^2 ln(2))"); + + EXPECT_EQ(Expression("1 / (1 - tan(2))").toString(), + "cos(2)/(cos(2) - sin(2))"); + EXPECT_EQ(Expression("1 / (1 - cot(2))").toString(), + "sin(2)/(sin(2) - cos(2))"); + EXPECT_EQ(Expression("1 / (1 - tanh(2))").toString(), + "cosh(2)/(cosh(2) - sinh(2))"); + EXPECT_EQ(Expression("1 / (1 - coth(2))").toString(), + "sinh(2)/(sinh(2) - cosh(2))"); + EXPECT_EQ(Expression("1 / (1 - sec(2))").toString(), + "cos(2)/(cos(2) - 1)"); + EXPECT_EQ(Expression("1 / (1 - csc(2))").toString(), + "sin(2)/(sin(2) - 1)"); + EXPECT_EQ(Expression("1 / (1 - sech(2))").toString(), + "cosh(2)/(cosh(2) - 1)"); + EXPECT_EQ(Expression("1 / (1 - csch(2))").toString(), + "sinh(2)/(sinh(2) - 1)"); + + EXPECT_EQ(Expression("floor(E)").toString(), + "2"); + EXPECT_EQ(Expression("ceil(E)").toString(), + "3"); + EXPECT_EQ(Expression("floor(E^10)").toString(), + "22026"); + EXPECT_EQ(Expression("ceil(E^10)").toString(), + "22027"); + EXPECT_EQ(Expression("floor(11^10)").toString(), + "25937424601"); + EXPECT_EQ(Expression("ceil(11^10)").toString(), + "25937424601"); + EXPECT_EQ(Expression("tan(floor(E/3))").toString(), + "0"); + EXPECT_EQ(Expression("tan(ceil(-E/3))").toString(), + "0"); + EXPECT_EQ(Expression("ln(floor(E/3))").toString(), + "-Inf"); + EXPECT_EQ(Expression("root(ceil(-E/3), 3)").toString(), + "0"); + EXPECT_EQ(Expression("floor(E + I)").toString(), + "2 + I"); + EXPECT_EQ(Expression("floor(E + x)").toString(), + "floor(x + E)"); + + EXPECT_EQ(Expression("abs(E)").toString(), + "abs(E)"); + EXPECT_EQ(Expression("sign(E)").toString(), + "1"); + EXPECT_EQ(Expression("abs(-E)").toString(), + "abs(E)"); + EXPECT_EQ(Expression("sign(-E)").toString(), + "-1"); + EXPECT_EQ(Expression("abs(E + I)").toString(), + "abs(E + I)"); + EXPECT_EQ(Expression("sign(E + I)").toString(), + "sign(E + I)"); + + EXPECT_EQ(Expression("floor(-x)").toString(), + "-ceil(x)"); + EXPECT_EQ(Expression("ceil(-x)").toString(), + "-floor(x)"); + EXPECT_EQ(Expression("abs(-x)").toString(), + "abs(x)"); + EXPECT_EQ(Expression("sign(-x)").toString(), + "-sign(x)"); + + EXPECT_EQ(Expression("floor(E^(E^(E^2)))").toString(), + "floor(E^(E^(E^2)))"); + EXPECT_EQ(Expression("ceil(E^(E^(E^2)))").toString(), + "ceil(E^(E^(E^2)))"); + EXPECT_EQ(Expression("sign(E^(E^(E^2)))").toString(), + "1"); +} + +TEST(SimplifyTests, simplifyLargeTest) { + EXPECT_EQ(Expression("10^-500").toString(), + "1/100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"); + + EXPECT_EQ(Expression("------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------a").toString(), + "a"); + + EXPECT_EQ(Expression("-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------a").toString(), + "-a"); + + EXPECT_EQ(Expression("a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a").toString(), + "266 a"); + + EXPECT_EQ(Expression("(x+y)^20").toString(), + "x^20 + 20 x^19 y + 190 x^18 y^2 + 1140 x^17 y^3 + 4845 x^16 y^4 + 15504 x^15 y^5 + 38760 x^14 y^6 + 77520 x^13 y^7 + 125970 x^12 y^8 + 167960 x^11 y^9 + 184756 x^10 y^10 + 167960 x^9 y^11 + 125970 x^8 y^12 + 77520 x^7 y^13 + 38760 x^6 y^14 + 15504 x^5 y^15 + 4845 x^4 y^16 + 1140 x^3 y^17 + 190 x^2 y^18 + 20 x y^19 + y^20"); + + EXPECT_EQ(Expression("(x+y+z)^4").toString(), + "x^4 + 4 x^3 y + 4 x^3 z + 6 x^2 y^2 + 12 x^2 y z + 6 x^2 z^2 + 4 x y^3 + 12 x y^2 z + 12 x y z^2 + 4 x z^3 + y^4 + 4 y^3 z + 6 y^2 z^2 + 4 y z^3 + z^4"); + + EXPECT_EQ(Expression("(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)(x+y)").toString(), + "x^30 + 30 x^29 y + 435 x^28 y^2 + 4060 x^27 y^3 + 27405 x^26 y^4 + 142506 x^25 y^5 + 593775 x^24 y^6 + 2035800 x^23 y^7 + 5852925 x^22 y^8 + 14307150 x^21 y^9 + 30045015 x^20 y^10 + 54627300 x^19 y^11 + 86493225 x^18 y^12 + 119759850 x^17 y^13 + 145422675 x^16 y^14 + 155117520 x^15 y^15 + 145422675 x^14 y^16 + 119759850 x^13 y^17 + 86493225 x^12 y^18 + 54627300 x^11 y^19 + 30045015 x^10 y^20 + 14307150 x^9 y^21 + 5852925 x^8 y^22 + 2035800 x^7 y^23 + 593775 x^6 y^24 + 142506 x^5 y^25 + 27405 x^4 y^26 + 4060 x^3 y^27 + 435 x^2 y^28 + 30 x y^29 + y^30"); + + EXPECT_EQ(Expression("(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)(x-y)").toString(), + "x^30 - 30 x^29 y + 435 x^28 y^2 - 4060 x^27 y^3 + 27405 x^26 y^4 - 142506 x^25 y^5 + 593775 x^24 y^6 - 2035800 x^23 y^7 + 5852925 x^22 y^8 - 14307150 x^21 y^9 + 30045015 x^20 y^10 - 54627300 x^19 y^11 + 86493225 x^18 y^12 - 119759850 x^17 y^13 + 145422675 x^16 y^14 - 155117520 x^15 y^15 + 145422675 x^14 y^16 - 119759850 x^13 y^17 + 86493225 x^12 y^18 - 54627300 x^11 y^19 + 30045015 x^10 y^20 - 14307150 x^9 y^21 + 5852925 x^8 y^22 - 2035800 x^7 y^23 + 593775 x^6 y^24 - 142506 x^5 y^25 + 27405 x^4 y^26 - 4060 x^3 y^27 + 435 x^2 y^28 - 30 x y^29 + y^30"); + + EXPECT_EQ(Expression("sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(x)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))").toString(), + "sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(sin(x)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))"); + + // TODO: for benchmarks + // EXPECT_EQ(Expression("(2 + 3 * x + 4 * x * y)^60").toString(), + // ""); + // EXPECT_EQ(Expression("(a+b+c+d)^60").toString(), + // ""); +} diff --git a/tests/src/overall/simplify/SimplifyTrigonometryTests.cpp b/tests/src/overall/simplify/SimplifyTrigonometryTests.cpp new file mode 100644 index 000000000..c358b1e1f --- /dev/null +++ b/tests/src/overall/simplify/SimplifyTrigonometryTests.cpp @@ -0,0 +1,803 @@ +#include + +#include "fintamath/expressions/Expression.hpp" + +using namespace fintamath; + +TEST(SimplifyTrigonometryTests, simplifyTest) { + EXPECT_EQ(Expression("sin(asin(x))").toString(), + "x"); + EXPECT_EQ(Expression("cos(acos(x))").toString(), + "x"); + EXPECT_EQ(Expression("tan(atan(x))").toString(), + "x"); + EXPECT_EQ(Expression("cot(acot(x))").toString(), + "x"); + EXPECT_EQ(Expression("sec(asec(x))").toString(), + "x"); + EXPECT_EQ(Expression("csc(acsc(x))").toString(), + "x"); + EXPECT_EQ(Expression("asin(sin(x))").toString(), + "asin(sin(x))"); + EXPECT_EQ(Expression("acos(cos(x))").toString(), + "acos(cos(x))"); + EXPECT_EQ(Expression("atan(tan(x))").toString(), + "atan(tan(x))"); + EXPECT_EQ(Expression("acot(cot(x))").toString(), + "acot(cot(x))"); + EXPECT_EQ(Expression("asec(sec(x))").toString(), + "asec(sec(x))"); + EXPECT_EQ(Expression("acsc(csc(x))").toString(), + "acsc(csc(x))"); + + EXPECT_EQ(Expression("sin(-x)").toString(), + "-sin(x)"); + EXPECT_EQ(Expression("cos(-x)").toString(), + "cos(x)"); + EXPECT_EQ(Expression("tan(-x)").toString(), + "-tan(x)"); + EXPECT_EQ(Expression("cot(-x)").toString(), + "-cot(x)"); + EXPECT_EQ(Expression("sec(-x)").toString(), + "sec(x)"); + EXPECT_EQ(Expression("csc(-x)").toString(), + "-csc(x)"); + + EXPECT_EQ(Expression("sin(x)/cos(x)").toString(), + "tan(x)"); + EXPECT_EQ(Expression("(-2sin(x))/cos(x)").toString(), + "-2 tan(x)"); + EXPECT_EQ(Expression("(2sin(x))/(3cos(x))").toString(), + "(2 tan(x))/3"); + EXPECT_EQ(Expression("sin(x)^2/cos(x)").toString(), + "sin(x)^2 sec(x)"); + EXPECT_EQ(Expression("sin(x)/cos(x)^2").toString(), + "sec(x)^2 sin(x)"); + EXPECT_EQ(Expression("sin(x)^2/cos(x)^2").toString(), + "tan(x)^2"); + EXPECT_EQ(Expression("(2sin(x))^2/cos(x)^2").toString(), + "4 tan(x)^2"); + EXPECT_EQ(Expression("(2sin(x))^2/(3cos(x))^2").toString(), + "(4 tan(x)^2)/9"); + + EXPECT_EQ(Expression("cos(x)/sin(x)").toString(), + "cot(x)"); + EXPECT_EQ(Expression("(-2cos(x))/sin(x)").toString(), + "-2 cot(x)"); + EXPECT_EQ(Expression("(2cos(x))/(3sin(x))").toString(), + "(2 cot(x))/3"); + EXPECT_EQ(Expression("cos(x)^2/sin(x)").toString(), + "cos(x)^2 csc(x)"); + EXPECT_EQ(Expression("cos(x)/sin(x)^2").toString(), + "csc(x)^2 cos(x)"); + EXPECT_EQ(Expression("cos(x)^2/sin(x)^2").toString(), + "cot(x)^2"); + EXPECT_EQ(Expression("(2cos(x))^2/sin(x)^2").toString(), + "4 cot(x)^2"); + EXPECT_EQ(Expression("(2cos(x))^2/(3sin(x))^2").toString(), + "(4 cot(x)^2)/9"); + + EXPECT_EQ(Expression("sec(x)/csc(x)").toString(), + "tan(x)"); + EXPECT_EQ(Expression("csc(x)/sec(x)").toString(), + "cot(x)"); + EXPECT_EQ(Expression("sec(x)*cot(x)").toString(), + "csc(x)"); + EXPECT_EQ(Expression("csc(x)*tan(x)").toString(), + "sec(x)"); + + EXPECT_EQ(Expression("sin(x)cos(x)").toString(), + "sin(2 x)/2"); + EXPECT_EQ(Expression("sin(x)cos(x)sign(x)").toString(), + "(sign(x) sin(2 x))/2"); + + EXPECT_EQ(Expression("sin(x)^2").toString(), + "sin(x)^2"); + EXPECT_EQ(Expression("cos(x)^2").toString(), + "cos(x)^2"); + EXPECT_EQ(Expression("1 - sin(x)^2").toString(), + "cos(x)^2"); + EXPECT_EQ(Expression("-1 + sin(x)^2").toString(), + "-cos(x)^2"); + EXPECT_EQ(Expression("2 - 2sin(x)^2").toString(), + "2 cos(x)^2"); + EXPECT_EQ(Expression("-2 + 2sin(x)^2").toString(), + "-2 cos(x)^2"); + EXPECT_EQ(Expression("1 - cos(x)^2").toString(), + "sin(x)^2"); + EXPECT_EQ(Expression("-1 + cos(x)^2").toString(), + "-sin(x)^2"); + EXPECT_EQ(Expression("2 - 2cos(x)^2").toString(), + "2 sin(x)^2"); + EXPECT_EQ(Expression("-2 + 2cos(x)^2").toString(), + "-2 sin(x)^2"); + EXPECT_EQ(Expression("1 - 2sin(x)^2").toString(), + "-2 sin(x)^2 + 1"); // TODO: cos of double angle + EXPECT_EQ(Expression("1 - 2cos(x)^2").toString(), + "-2 cos(x)^2 + 1"); // TODO: cos of double angle + + EXPECT_EQ(Expression("sin(x)^2 + cos(x)^2").toString(), + "1"); + EXPECT_EQ(Expression("sin(x)^2 - cos(x)^2").toString(), + "-cos(2 x)"); + EXPECT_EQ(Expression("-sin(x)^2 + cos(x)^2").toString(), + "cos(2 x)"); + EXPECT_EQ(Expression("-sin(x)^2 - cos(x)^2").toString(), + "-1"); + EXPECT_EQ(Expression("2sin(x)^2 + 2cos(x)^2").toString(), + "2"); + EXPECT_EQ(Expression("sin(x)^2 + 2cos(x)^2").toString(), + "sin(x)^2 + 2 cos(x)^2"); + EXPECT_EQ(Expression("2sin(x)^2 + cos(x)^2").toString(), + "2 sin(x)^2 + cos(x)^2"); + EXPECT_EQ(Expression("2sin(x)^2 - 3cos(x)^2").toString(), + "2 sin(x)^2 - 3 cos(x)^2"); + EXPECT_EQ(Expression("-5sin(x)^2 + 10cos(x)^2").toString(), + "-5 sin(x)^2 + 10 cos(x)^2"); + EXPECT_EQ(Expression("-4sin(x)^2 - 6cos(x)^2").toString(), + "-4 sin(x)^2 - 6 cos(x)^2"); + EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), + "2 + 2 I"); + EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), + "(2 + 2 I) sin(x)^2 + (-2 + 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), + "(2 + 2 I) sin(x)^2 + (2 - 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(2I + 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), + "(-2 - 2 I) cos(2 x)"); + EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), + "(-2 + 2 I) sin(x)^2 + (2 + 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), + "-2 + 2 I"); + EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), + "(2 - 2 I) cos(2 x)"); + EXPECT_EQ(Expression("(2I - 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), + "(-2 + 2 I) sin(x)^2 + (-2 - 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), + "(2 - 2 I) sin(x)^2 + (2 + 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), + "(-2 + 2 I) cos(2 x)"); + EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), + "2 - 2 I"); + EXPECT_EQ(Expression("(-2I + 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), + "(2 - 2 I) sin(x)^2 + (-2 - 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (2I + 2) cos(x)^2").toString(), + "(2 + 2 I) cos(2 x)"); + EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (2I - 2) cos(x)^2").toString(), + "(-2 - 2 I) sin(x)^2 + (-2 + 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (-2I + 2) cos(x)^2").toString(), + "(-2 - 2 I) sin(x)^2 + (2 - 2 I) cos(x)^2"); + EXPECT_EQ(Expression("(-2I - 2) sin(x)^2 + (-2I - 2) cos(x)^2").toString(), + "-2 - 2 I"); + // TODO: simplify + EXPECT_EQ(Expression("E sin(x)^2 + E cos(x)^2").toString(), + "E sin(x)^2 + E cos(x)^2"); + EXPECT_EQ(Expression("E sin(x)^2 - E cos(x)^2").toString(), + "E sin(x)^2 - E cos(x)^2"); + EXPECT_EQ(Expression("-E sin(x)^2 + E cos(x)^2").toString(), + "-E sin(x)^2 + E cos(x)^2"); + EXPECT_EQ(Expression("-E sin(x)^2 - E cos(x)^2").toString(), + "-E sin(x)^2 - E cos(x)^2"); + EXPECT_EQ(Expression("E^2 sin(x)^2 + E cos(x)^2").toString(), + "sin(x)^2 E^2 + E cos(x)^2"); + EXPECT_EQ(Expression("E^2 sin(x)^2 - E cos(x)^2").toString(), + "sin(x)^2 E^2 - E cos(x)^2"); + EXPECT_EQ(Expression("-E^2 sin(x)^2 + E cos(x)^2").toString(), + "-sin(x)^2 E^2 + E cos(x)^2"); + EXPECT_EQ(Expression("-E^2 sin(x)^2 - E cos(x)^2").toString(), + "-sin(x)^2 E^2 - E cos(x)^2"); + EXPECT_EQ(Expression("sin(x) * sin(x) + cos(x) * cos(x)").toString(), + "1"); + EXPECT_EQ(Expression("(sin(x) + cos(x))^2").toString(), + "sin(2 x) + 1"); + EXPECT_EQ(Expression("(sin(x) - cos(x))^2").toString(), + "-sin(2 x) + 1"); + EXPECT_EQ(Expression("sin(x)^2 + cos(y)^2").toString(), + "sin(x)^2 + cos(y)^2"); + + EXPECT_EQ(Expression("sin(x)^2 + sign(x)^2").toString(), + "sin(x)^2 + sign(x)^2"); + EXPECT_EQ(Expression("sin(x)^2 - sign(x)^2").toString(), + "sin(x)^2 - sign(x)^2"); + EXPECT_EQ(Expression("cos(x)^2 + sign(x)^2").toString(), + "cos(x)^2 + sign(x)^2"); + EXPECT_EQ(Expression("cos(x)^2 - sign(x)^2").toString(), + "cos(x)^2 - sign(x)^2"); + EXPECT_EQ(Expression("sign(x)^2 + 1").toString(), + "sign(x)^2 + 1"); + EXPECT_EQ(Expression("sign(x)^2 - 1").toString(), + "sign(x)^2 - 1"); + + EXPECT_EQ(Expression("tan(x) * cot(x)").toString(), + "1"); + EXPECT_EQ(Expression("cot(x) * tan(x)").toString(), + "1"); + EXPECT_EQ(Expression("sec(x) * cos(x)").toString(), + "1"); + EXPECT_EQ(Expression("cos(x) * sec(x)").toString(), + "1"); + EXPECT_EQ(Expression("csc(x) * sin(x)").toString(), + "1"); + EXPECT_EQ(Expression("sin(x) * csc(x)").toString(), + "1"); + // TODO: implement + // EXPECT_EQ(Expression("tan(x)^5 * cot(x)^5").toString(), + // "1"); + // EXPECT_EQ(Expression("tan(x)^4 * (sin(x)/cos(x)) * cot(x)^5").toString(), + // "1"); + + EXPECT_EQ(Expression("sin(-13Pi/6)").toString(), + "-1/2"); + EXPECT_EQ(Expression("sin(-2Pi)").toString(), + "0"); + EXPECT_EQ(Expression("sin(-11Pi/6)").toString(), + "1/2"); + EXPECT_EQ(Expression("sin(-7Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("sin(-5Pi/3)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("sin(-3Pi/2)").toString(), + "1"); + EXPECT_EQ(Expression("sin(-4Pi/3)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("sin(-5Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("sin(-7Pi/6)").toString(), + "1/2"); + EXPECT_EQ(Expression("sin(-Pi)").toString(), + "0"); + EXPECT_EQ(Expression("sin(-5Pi/6)").toString(), + "-1/2"); + EXPECT_EQ(Expression("sin(-3Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("sin(-2Pi/3)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("sin(-Pi/2)").toString(), + "-1"); + EXPECT_EQ(Expression("sin(-Pi/3)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("sin(-Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("sin(-Pi/6)").toString(), + "-1/2"); + EXPECT_EQ(Expression("sin(0)").toString(), + "0"); + EXPECT_EQ(Expression("sin(Pi/6)").toString(), + "1/2"); + EXPECT_EQ(Expression("sin(Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("sin(Pi/3)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("sin(Pi/2)").toString(), + "1"); + EXPECT_EQ(Expression("sin(2Pi/3)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("sin(3Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("sin(5Pi/6)").toString(), + "1/2"); + EXPECT_EQ(Expression("sin(Pi)").toString(), + "0"); + EXPECT_EQ(Expression("sin(7Pi/6)").toString(), + "-1/2"); + EXPECT_EQ(Expression("sin(5Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("sin(4Pi/3)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("sin(3Pi/2)").toString(), + "-1"); + EXPECT_EQ(Expression("sin(5Pi/3)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("sin(7Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("sin(11Pi/6)").toString(), + "-1/2"); + EXPECT_EQ(Expression("sin(2Pi)").toString(), + "0"); + EXPECT_EQ(Expression("sin(13Pi/6)").toString(), + "1/2"); + + EXPECT_EQ(Expression("cos(-13Pi/6)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("cos(-2Pi)").toString(), + "1"); + EXPECT_EQ(Expression("cos(-11Pi/6)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("cos(-7Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("cos(-5Pi/3)").toString(), + "1/2"); + EXPECT_EQ(Expression("cos(-3Pi/2)").toString(), + "0"); + EXPECT_EQ(Expression("cos(-4Pi/3)").toString(), + "-1/2"); + EXPECT_EQ(Expression("cos(-5Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("cos(-7Pi/6)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("cos(-Pi)").toString(), + "-1"); + EXPECT_EQ(Expression("cos(-5Pi/6)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("cos(-3Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("cos(-2Pi/3)").toString(), + "-1/2"); + EXPECT_EQ(Expression("cos(-Pi/2)").toString(), + "0"); + EXPECT_EQ(Expression("cos(-Pi/3)").toString(), + "1/2"); + EXPECT_EQ(Expression("cos(-Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("cos(-Pi/6)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("cos(0)").toString(), + "1"); + EXPECT_EQ(Expression("cos(Pi/6)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("cos(Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("cos(Pi/3)").toString(), + "1/2"); + EXPECT_EQ(Expression("cos(Pi/2)").toString(), + "0"); + EXPECT_EQ(Expression("cos(2Pi/3)").toString(), + "-1/2"); + EXPECT_EQ(Expression("cos(3Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("cos(5Pi/6)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("cos(Pi)").toString(), + "-1"); + EXPECT_EQ(Expression("cos(7Pi/6)").toString(), + "-sqrt(3)/2"); + EXPECT_EQ(Expression("cos(5Pi/4)").toString(), + "-sqrt(2)/2"); + EXPECT_EQ(Expression("cos(4Pi/3)").toString(), + "-1/2"); + EXPECT_EQ(Expression("cos(3Pi/2)").toString(), + "0"); + EXPECT_EQ(Expression("cos(5Pi/3)").toString(), + "1/2"); + EXPECT_EQ(Expression("cos(7Pi/4)").toString(), + "sqrt(2)/2"); + EXPECT_EQ(Expression("cos(11Pi/6)").toString(), + "sqrt(3)/2"); + EXPECT_EQ(Expression("cos(2Pi)").toString(), + "1"); + EXPECT_EQ(Expression("cos(13Pi/6)").toString(), + "sqrt(3)/2"); + + EXPECT_EQ(Expression("tan(-13Pi/6)").toString(), + "-sqrt(3)/3"); + EXPECT_EQ(Expression("tan(-2Pi)").toString(), + "0"); + EXPECT_EQ(Expression("tan(-11Pi/6)").toString(), + "sqrt(3)/3"); + EXPECT_EQ(Expression("tan(-7Pi/4)").toString(), + "1"); + EXPECT_EQ(Expression("tan(-5Pi/3)").toString(), + "sqrt(3)"); + EXPECT_EQ(Expression("tan(-3Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("tan(-4Pi/3)").toString(), + "-sqrt(3)"); + EXPECT_EQ(Expression("tan(-5Pi/4)").toString(), + "-1"); + EXPECT_EQ(Expression("tan(-7Pi/6)").toString(), + "-sqrt(3)/3"); + EXPECT_EQ(Expression("tan(-Pi)").toString(), + "0"); + EXPECT_EQ(Expression("tan(-5Pi/6)").toString(), + "sqrt(3)/3"); + EXPECT_EQ(Expression("tan(-3Pi/4)").toString(), + "1"); + EXPECT_EQ(Expression("tan(-2Pi/3)").toString(), + "sqrt(3)"); + EXPECT_EQ(Expression("tan(-Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("tan(-Pi/3)").toString(), + "-sqrt(3)"); + EXPECT_EQ(Expression("tan(-Pi/4)").toString(), + "-1"); + EXPECT_EQ(Expression("tan(-Pi/6)").toString(), + "-sqrt(3)/3"); + EXPECT_EQ(Expression("tan(0)").toString(), + "0"); + EXPECT_EQ(Expression("tan(Pi/6)").toString(), + "sqrt(3)/3"); + EXPECT_EQ(Expression("tan(Pi/4)").toString(), + "1"); + EXPECT_EQ(Expression("tan(Pi/3)").toString(), + "sqrt(3)"); + EXPECT_EQ(Expression("tan(Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("tan(2Pi/3)").toString(), + "-sqrt(3)"); + EXPECT_EQ(Expression("tan(3Pi/4)").toString(), + "-1"); + EXPECT_EQ(Expression("tan(5Pi/6)").toString(), + "-sqrt(3)/3"); + EXPECT_EQ(Expression("tan(Pi)").toString(), + "0"); + EXPECT_EQ(Expression("tan(7Pi/6)").toString(), + "sqrt(3)/3"); + EXPECT_EQ(Expression("tan(5Pi/4)").toString(), + "1"); + EXPECT_EQ(Expression("tan(4Pi/3)").toString(), + "sqrt(3)"); + EXPECT_EQ(Expression("tan(3Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("tan(5Pi/3)").toString(), + "-sqrt(3)"); + EXPECT_EQ(Expression("tan(7Pi/4)").toString(), + "-1"); + EXPECT_EQ(Expression("tan(11Pi/6)").toString(), + "-sqrt(3)/3"); + EXPECT_EQ(Expression("tan(2Pi)").toString(), + "0"); + EXPECT_EQ(Expression("tan(13Pi/6)").toString(), + "sqrt(3)/3"); + + EXPECT_EQ(Expression("sec(-13Pi/6)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(-2Pi)").toString(), + "1"); + EXPECT_EQ(Expression("sec(-11Pi/6)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(-7Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("sec(-5Pi/3)").toString(), + "2"); + EXPECT_EQ(Expression("sec(-3Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("sec(-4Pi/3)").toString(), + "-2"); + EXPECT_EQ(Expression("sec(-5Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("sec(-7Pi/6)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(-Pi)").toString(), + "-1"); + EXPECT_EQ(Expression("sec(-5Pi/6)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(-3Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("sec(-2Pi/3)").toString(), + "-2"); + EXPECT_EQ(Expression("sec(-Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("sec(-Pi/3)").toString(), + "2"); + EXPECT_EQ(Expression("sec(-Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("sec(-Pi/6)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(0)").toString(), + "1"); + EXPECT_EQ(Expression("sec(Pi/6)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("sec(Pi/3)").toString(), + "2"); + EXPECT_EQ(Expression("sec(Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("sec(2Pi/3)").toString(), + "-2"); + EXPECT_EQ(Expression("sec(3Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("sec(5Pi/6)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(Pi)").toString(), + "-1"); + EXPECT_EQ(Expression("sec(7Pi/6)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(5Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("sec(4Pi/3)").toString(), + "-2"); + EXPECT_EQ(Expression("sec(3Pi/2)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("sec(5Pi/3)").toString(), + "2"); + EXPECT_EQ(Expression("sec(7Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("sec(11Pi/6)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("sec(2Pi)").toString(), + "1"); + EXPECT_EQ(Expression("sec(13Pi/6)").toString(), + "(2 sqrt(3))/3"); + + EXPECT_EQ(Expression("csc(-13Pi/6)").toString(), + "-2"); + EXPECT_EQ(Expression("csc(-2Pi)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("csc(-11Pi/6)").toString(), + "2"); + EXPECT_EQ(Expression("csc(-7Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("csc(-5Pi/3)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(-3Pi/2)").toString(), + "1"); + EXPECT_EQ(Expression("csc(-4Pi/3)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(-5Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("csc(-7Pi/6)").toString(), + "2"); + EXPECT_EQ(Expression("csc(-Pi)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("csc(-5Pi/6)").toString(), + "-2"); + EXPECT_EQ(Expression("csc(-3Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("csc(-2Pi/3)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(-Pi/2)").toString(), + "-1"); + EXPECT_EQ(Expression("csc(-Pi/3)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(-Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("csc(-Pi/6)").toString(), + "-2"); + EXPECT_EQ(Expression("csc(0)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("csc(Pi/6)").toString(), + "2"); + EXPECT_EQ(Expression("csc(Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("csc(Pi/3)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(Pi/2)").toString(), + "1"); + EXPECT_EQ(Expression("csc(2Pi/3)").toString(), + "(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(3Pi/4)").toString(), + "sqrt(2)"); + EXPECT_EQ(Expression("csc(5Pi/6)").toString(), + "2"); + EXPECT_EQ(Expression("csc(Pi)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("csc(7Pi/6)").toString(), + "-2"); + EXPECT_EQ(Expression("csc(5Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("csc(4Pi/3)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(3Pi/2)").toString(), + "-1"); + EXPECT_EQ(Expression("csc(5Pi/3)").toString(), + "-(2 sqrt(3))/3"); + EXPECT_EQ(Expression("csc(7Pi/4)").toString(), + "-sqrt(2)"); + EXPECT_EQ(Expression("csc(11Pi/6)").toString(), + "-2"); + EXPECT_EQ(Expression("csc(2Pi)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("csc(13Pi/6)").toString(), + "2"); + + EXPECT_EQ(Expression("sin(Pi/7)").toString(), + "sin(Pi/7)"); + EXPECT_EQ(Expression("cos(Pi/7)").toString(), + "cos(Pi/7)"); + EXPECT_EQ(Expression("tan(Pi/7)").toString(), + "tan(Pi/7)"); + EXPECT_EQ(Expression("cot(Pi/7)").toString(), + "cot(Pi/7)"); + EXPECT_EQ(Expression("sec(Pi/7)").toString(), + "sec(Pi/7)"); + EXPECT_EQ(Expression("csc(Pi/7)").toString(), + "csc(Pi/7)"); + + EXPECT_EQ(Expression("sin(E Pi)").toString(), + "sin(E Pi)"); + EXPECT_EQ(Expression("cos(E Pi)").toString(), + "cos(E Pi)"); + EXPECT_EQ(Expression("tan(E Pi)").toString(), + "tan(E Pi)"); + EXPECT_EQ(Expression("cot(E Pi)").toString(), + "cot(E Pi)"); + EXPECT_EQ(Expression("sec(E Pi)").toString(), + "sec(E Pi)"); + EXPECT_EQ(Expression("csc(E Pi)").toString(), + "csc(E Pi)"); + + EXPECT_EQ(Expression("asin(-1)").toString(), + "-Pi/2"); + EXPECT_EQ(Expression("asin(-sqrt(3)/2)").toString(), + "-Pi/3"); + EXPECT_EQ(Expression("asin(-sqrt(2)/2)").toString(), + "-Pi/4"); + EXPECT_EQ(Expression("asin(-1/2)").toString(), + "-Pi/6"); + EXPECT_EQ(Expression("asin(0)").toString(), + "0"); + EXPECT_EQ(Expression("asin(1/2)").toString(), + "Pi/6"); + EXPECT_EQ(Expression("asin(sqrt(2)/2)").toString(), + "Pi/4"); + EXPECT_EQ(Expression("asin(sqrt(3)/2)").toString(), + "Pi/3"); + EXPECT_EQ(Expression("asin(1)").toString(), + "Pi/2"); + + EXPECT_EQ(Expression("acos(-1)").toString(), + "Pi"); + EXPECT_EQ(Expression("acos(-sqrt(3)/2)").toString(), + "(5 Pi)/6"); + EXPECT_EQ(Expression("acos(-sqrt(2)/2)").toString(), + "(3 Pi)/4"); + EXPECT_EQ(Expression("acos(-1/2)").toString(), + "(2 Pi)/3"); + EXPECT_EQ(Expression("acos(0)").toString(), + "Pi/2"); + EXPECT_EQ(Expression("acos(1/2)").toString(), + "Pi/3"); + EXPECT_EQ(Expression("acos(sqrt(2)/2)").toString(), + "Pi/4"); + EXPECT_EQ(Expression("acos(sqrt(3)/2)").toString(), + "Pi/6"); + EXPECT_EQ(Expression("acos(1)").toString(), + "0"); + + EXPECT_EQ(Expression("atan(-sqrt(3))").toString(), + "-Pi/3"); + EXPECT_EQ(Expression("atan(-1)").toString(), + "-Pi/4"); + EXPECT_EQ(Expression("atan(-sqrt(3)/3)").toString(), + "-Pi/6"); + EXPECT_EQ(Expression("atan(0)").toString(), + "0"); + EXPECT_EQ(Expression("atan(sqrt(3)/3)").toString(), + "Pi/6"); + EXPECT_EQ(Expression("atan(1)").toString(), + "Pi/4"); + EXPECT_EQ(Expression("atan(sqrt(3))").toString(), + "Pi/3"); + + EXPECT_EQ(Expression("acot(-sqrt(3))").toString(), + "-Pi/6"); + EXPECT_EQ(Expression("acot(-1)").toString(), + "-Pi/4"); + EXPECT_EQ(Expression("acot(-sqrt(3)/3)").toString(), + "-Pi/3"); + EXPECT_EQ(Expression("acot(0)").toString(), + "Pi/2"); + EXPECT_EQ(Expression("acot(sqrt(3)/3)").toString(), + "Pi/3"); + EXPECT_EQ(Expression("acot(1)").toString(), + "Pi/4"); + EXPECT_EQ(Expression("acot(sqrt(3))").toString(), + "Pi/6"); + + EXPECT_EQ(Expression("asec(-1)").toString(), + "Pi"); + EXPECT_EQ(Expression("asec(-2/sqrt(3))").toString(), + "(5 Pi)/6"); + EXPECT_EQ(Expression("asec(-2/sqrt(2))").toString(), + "(3 Pi)/4"); + EXPECT_EQ(Expression("asec(-2)").toString(), + "(2 Pi)/3"); + EXPECT_EQ(Expression("asec(0)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("asec(2)").toString(), + "Pi/3"); + EXPECT_EQ(Expression("asec(2/sqrt(2))").toString(), + "Pi/4"); + EXPECT_EQ(Expression("asec(2/sqrt(3))").toString(), + "Pi/6"); + EXPECT_EQ(Expression("asec(1)").toString(), + "0"); + + EXPECT_EQ(Expression("acsc(-1)").toString(), + "-Pi/2"); + EXPECT_EQ(Expression("acsc(-2/sqrt(3))").toString(), + "-Pi/3"); + EXPECT_EQ(Expression("acsc(-2/sqrt(2))").toString(), + "-Pi/4"); + EXPECT_EQ(Expression("acsc(-2)").toString(), + "-Pi/6"); + EXPECT_EQ(Expression("acsc(0)").toString(), + "ComplexInf"); + EXPECT_EQ(Expression("acsc(2)").toString(), + "Pi/6"); + EXPECT_EQ(Expression("acsc(2/sqrt(2))").toString(), + "Pi/4"); + EXPECT_EQ(Expression("acsc(2/sqrt(3))").toString(), + "Pi/3"); + EXPECT_EQ(Expression("acsc(1)").toString(), + "Pi/2"); + + EXPECT_EQ(Expression("asin(sqrt(5)/10)").toString(), + "asin(sqrt(5)/10)"); + EXPECT_EQ(Expression("acos(sqrt(5)/10)").toString(), + "acos(sqrt(5)/10)"); + EXPECT_EQ(Expression("atan(sqrt(5)/10)").toString(), + "atan(sqrt(5)/10)"); + EXPECT_EQ(Expression("acot(sqrt(5)/10)").toString(), + "acot(sqrt(5)/10)"); + EXPECT_EQ(Expression("asec(sqrt(5)/10)").toString(), + "asec(sqrt(5)/10)"); + EXPECT_EQ(Expression("acsc(sqrt(5)/10)").toString(), + "acsc(sqrt(5)/10)"); + + EXPECT_EQ(Expression("asin(x)").toString(), + "asin(x)"); + EXPECT_EQ(Expression("acos(x)").toString(), + "acos(x)"); + EXPECT_EQ(Expression("atan(x)").toString(), + "atan(x)"); + EXPECT_EQ(Expression("acot(x)").toString(), + "acot(x)"); + EXPECT_EQ(Expression("asec(x)").toString(), + "asec(x)"); + EXPECT_EQ(Expression("acsc(x)").toString(), + "acsc(x)"); + + EXPECT_EQ(Expression("asin(sqrt(x))").toString(), + "asin(sqrt(x))"); + EXPECT_EQ(Expression("acos(sqrt(x))").toString(), + "acos(sqrt(x))"); + EXPECT_EQ(Expression("atan(sqrt(x))").toString(), + "atan(sqrt(x))"); + EXPECT_EQ(Expression("acot(sqrt(x))").toString(), + "acot(sqrt(x))"); + EXPECT_EQ(Expression("asec(sqrt(x))").toString(), + "asec(sqrt(x))"); + EXPECT_EQ(Expression("acsc(sqrt(x))").toString(), + "acsc(sqrt(x))"); + + EXPECT_EQ(Expression("asin(sqrt(x)/2)").toString(), + "asin(sqrt(x)/2)"); + EXPECT_EQ(Expression("acos(sqrt(x)/2)").toString(), + "acos(sqrt(x)/2)"); + EXPECT_EQ(Expression("atan(sqrt(x)/2)").toString(), + "atan(sqrt(x)/2)"); + EXPECT_EQ(Expression("asec(sqrt(x)/2)").toString(), + "asec(sqrt(x)/2)"); + EXPECT_EQ(Expression("acsc(sqrt(x)/2)").toString(), + "acsc(sqrt(x)/2)"); + + EXPECT_EQ(Expression("asin(-x)").toString(), + "asin(-x)"); + EXPECT_EQ(Expression("acos(-x)").toString(), + "acos(-x)"); + EXPECT_EQ(Expression("atan(-x)").toString(), + "atan(-x)"); + EXPECT_EQ(Expression("acot(-x)").toString(), + "acot(-x)"); + EXPECT_EQ(Expression("asec(-x)").toString(), + "asec(-x)"); + EXPECT_EQ(Expression("acsc(-x)").toString(), + "acsc(-x)"); + + EXPECT_EQ(Expression("asin(-sqrt(x))").toString(), + "asin(-sqrt(x))"); + EXPECT_EQ(Expression("acos(-sqrt(x))").toString(), + "acos(-sqrt(x))"); + EXPECT_EQ(Expression("atan(-sqrt(x))").toString(), + "atan(-sqrt(x))"); + EXPECT_EQ(Expression("acot(-sqrt(x))").toString(), + "acot(-sqrt(x))"); + EXPECT_EQ(Expression("asec(-sqrt(x))").toString(), + "asec(-sqrt(x))"); + EXPECT_EQ(Expression("acsc(-sqrt(x))").toString(), + "acsc(-sqrt(x))"); + + EXPECT_EQ(Expression("asin(-sqrt(x)/2)").toString(), + "asin(-sqrt(x)/2)"); + EXPECT_EQ(Expression("acos(-sqrt(x)/2)").toString(), + "acos(-sqrt(x)/2)"); + EXPECT_EQ(Expression("atan(-sqrt(x)/2)").toString(), + "atan(-sqrt(x)/2)"); + EXPECT_EQ(Expression("acot(-sqrt(x)/2)").toString(), + "acot(-sqrt(x)/2)"); + EXPECT_EQ(Expression("asec(-sqrt(x)/2)").toString(), + "asec(-sqrt(x)/2)"); + EXPECT_EQ(Expression("acsc(-sqrt(x)/2)").toString(), + "acsc(-sqrt(x)/2)"); +} diff --git a/tests/src/overall/solve/SolveTests.cpp b/tests/src/overall/solve/SolveTests.cpp new file mode 100644 index 000000000..90dfa4f16 --- /dev/null +++ b/tests/src/overall/solve/SolveTests.cpp @@ -0,0 +1,145 @@ +#include + +#include "fintamath/expressions/ExpressionFunctions.hpp" + +using namespace fintamath; + +TEST(SolveTests, solveTest) { + EXPECT_EQ(solve(Expression("x - 10 = 0")).toString(), + "x = 10"); + EXPECT_EQ(solve(Expression("-10 - x = 0")).toString(), + "x = -10"); + + EXPECT_EQ(solve(Expression("z - 10 - I = 0")).toString(), + "z = 10 + I"); + EXPECT_EQ(solve(Expression("(6 + 3I)^2 = 4I - 30z")).toString(), + "z = -9/10 - 16/15 I"); + + EXPECT_EQ(solve(Expression("x^2 - 10 = 39")).toString(), + "x = -7 | x = 7"); + EXPECT_EQ(solve(Expression("x^2 = 0")).toString(), + "x = 0"); + EXPECT_EQ(solve(Expression("x^2 = 1")).toString(), + "x = -1 | x = 1"); + EXPECT_EQ(solve(Expression("x^2 - 2x - 3 = 0")).toString(), + "x = -1 | x = 3"); + EXPECT_EQ(solve(Expression("15 - 2x - x^2 = 0")).toString(), + "x = -5 | x = 3"); + EXPECT_EQ(solve(Expression("x^2 + 12x + 36 = 0")).toString(), + "x = -6"); + EXPECT_EQ(solve(Expression("x^2 + 12x = 0")).toString(), + "x = -12 | x = 0"); + EXPECT_EQ(solve(Expression("x^2 - 23x - 3 = 0")).toString(), + "x = -sqrt(541)/2 + 23/2 | x = sqrt(541)/2 + 23/2"); + EXPECT_EQ(solve(Expression("-12x^2 - 23x + 30 = 0")).toString(), + "x = -sqrt(1969)/24 - 23/24 | x = sqrt(1969)/24 - 23/24"); + EXPECT_EQ(solve(Expression("-33x^2 - x + 34 = 0")).toString(), + "x = -34/33 | x = 1"); + EXPECT_EQ(solve(Expression("2x^2 + 2sqrt(2)x + 1 = 0")).toString(), + "x = -sqrt(2)/2"); + + EXPECT_EQ(solve(Expression("x^2 = -1")).toString(), + "x = -I | x = I"); + EXPECT_EQ(solve(Expression("x^2 + 4x + 5 = 0")).toString(), + "x = -2 - I | x = -2 + I"); + EXPECT_EQ(solve(Expression("2x^2 + x + 1 = 0")).toString(), + "x = -(I sqrt(7))/4 - 1/4 | x = (I sqrt(7))/4 - 1/4"); + EXPECT_EQ(solve(Expression("x^2 + 3x + 5 = 0")).toString(), + "x = -(I sqrt(11))/2 - 3/2 | x = (I sqrt(11))/2 - 3/2"); + + // TODO: implement cubic equations + EXPECT_EQ(solve(Expression("x^3 - 3x^2 + 3x - 1 = 0")).toString(), + "x^3 - 3 x^2 + 3 x - 1 = 0"); // TODO: x = 1 + // EXPECT_EQ(solve(Expression("x^3 - 6x^2 + 11x - 6 = 0")).toString(), + // "x = 1 | x = 2 | x = 3"); + // EXPECT_EQ(solve(Expression("x^3 + 2x^2 - 5x - 6 = 0")).toString(), + // "x = -3 | x = -1 | x = 2"); + // EXPECT_EQ(solve(Expression("x^3 = 0")).toString(), + // "x = 0"); + // EXPECT_EQ(solve(Expression("x^3 + 1 = 0")).toString(), + // "x = -1"); + // EXPECT_EQ(solve(Expression("x^3 - 1 = 0")).toString(), + // "x = 1"); + // EXPECT_EQ(solve(Expression("x^3 + 2x^2 + x = 0")).toString(), + // "x = -1 | x = 0"); + // EXPECT_EQ(solve(Expression("-x^3 + 5x^2 - 8x + 4 = 0")).toString(), + // "x = 1 | x = 2"); + // EXPECT_EQ(solve(Expression("-2x^3 + 4x^2 + 4x - 8 = 0")).toString(), + // "x = -1 | x = 1 | x = 2"); + // EXPECT_EQ(solve(Expression("2x^3 - 3x^2 - 11x + 6 = 0")).toString(), + // "x = -2 | x = 1/2 | x = 3"); + // EXPECT_EQ(solve(Expression("3x^3 - 3x^2 - 12x - 8 = 0")).toString(), + // "1/9 (3 + (1485 - 162 sqrt(23))^(1/3) + 3 (55 + 6 sqrt(23))^(1/3))"); + + EXPECT_EQ(solve(Expression("x < 1")).toString(), + "x < 1"); + EXPECT_EQ(solve(Expression("x < -10")).toString(), + "x < -10"); + EXPECT_EQ(solve(Expression("x! = 0")).toString(), + "x! = 0"); + + // TODO: implement quadric inequalities + EXPECT_EQ(solve(Expression("x^2 + 2 x - 1 < 0")).toString(), + "x^2 + 2 x - 1 < 0"); + + EXPECT_EQ(solve(Expression("15x^2 + sin(25)x - 10% = Ey")).toString(), + "x^2 + (sin(25) x)/15 - (E y)/15 - 1/150 = 0"); + EXPECT_EQ(solve(Expression("x + x_1 + x_2 + y + y_1 = 0")).toString(), + "x + x_1 + x_2 + y + y_1 = 0"); + EXPECT_EQ(solve(Expression("-x^a = 0")).toString(), + "x^a = 0"); + EXPECT_EQ(solve(Expression("sin(x) = 0")).toString(), + "sin(x) = 0"); + EXPECT_EQ(solve(Expression("x^2 + y = 0")).toString(), + "x^2 + y = 0"); + EXPECT_EQ(solve(Expression("x y = 0")).toString(), + "x y = 0"); + EXPECT_EQ(solve(Expression("2 x^a = 0")).toString(), + "x^a = 0"); + EXPECT_EQ(solve(Expression("x^b a = 0")).toString(), + "a x^b = 0"); + EXPECT_EQ(solve(Expression("x/y = 0")).toString(), + "x = 0"); + EXPECT_EQ(solve(Expression("x^2 - 2*sin(2) = 0")).toString(), + "x = -sqrt(8 sin(2))/2 | x = sqrt(8 sin(2))/2"); + EXPECT_EQ(solve(Expression("x = x sqrt(x)")).toString(), + "x^(3/2) - x = 0"); + EXPECT_EQ(solve(Expression("x = 3^x")).toString(), + "x - 3^x = 0"); + + EXPECT_EQ(solve(Expression("E = Ey")).toString(), + "y = 1"); + EXPECT_EQ(solve(Expression("sin(4) = sin(4) y")).toString(), + "y = 1"); + EXPECT_EQ(solve(Expression("E >= Ey")).toString(), + "y <= 1"); + EXPECT_EQ(solve(Expression("sin(4) >= sin(4) y")).toString(), + "y >= 1"); + EXPECT_EQ(solve(Expression("x >= x sqrt(x)")).toString(), + "x^(3/2) - x <= 0"); + EXPECT_EQ(solve(Expression("x >= x^(1/100)")).toString(), + "x - root(x, 100) >= 0"); +} + +TEST(SolveTests, solveApproximateTest) { + Expression expr; + Variable x("x"); + + expr = pow(x + 1, 6); + EXPECT_EQ(expr.toString(), "x^6 + 6 x^5 + 15 x^4 + 20 x^3 + 15 x^2 + 6 x + 1"); + + expr = solve(expr); + EXPECT_EQ(expr.toString(), "x^6 + 6 x^5 + 15 x^4 + 20 x^3 + 15 x^2 + 6 x + 1"); + + expr = expr.approximate(2); + EXPECT_EQ(expr.toString(), "x^6 + 6 x^5 + 15 x^4 + 20 x^3 + 15 x^2 + 6 x + 1"); + + expr = pow(x + 1, 7); + EXPECT_EQ(expr.toString(), "x^7 + 7 x^6 + 21 x^5 + 35 x^4 + 35 x^3 + 21 x^2 + 7 x + 1"); + + expr = solve(expr); + EXPECT_EQ(expr.toString(), "x^7 + 7 x^6 + 21 x^5 + 35 x^4 + 35 x^3 + 21 x^2 + 7 x + 1"); + + expr = expr.approximate(2); + EXPECT_EQ(expr.toString(), "x^7 + 7 x^6 + 21 x^5 + 35 x^4 + 35 x^3 + 21 x^2 + 7 x + 1"); +}