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bignum (development version)

bignum 0.3.2

Fix for CRAN checks.

bignum 0.3.1

  • biginteger() now accepts strings with leading zeros (#37).
  • Empty strings are now correctly treated as missing data (i.e., return NA).
  • Fix for CRAN checks.

bignum 0.3.0

  • New seq.bignum_vctr() for generating sequences of biginteger or bigfloat (#30).

  • To suppress lossy cast warnings, you should now use suppressWarnings() (#29).

    • If using R 4.1+, we recommend suppressWarnings(expr, classes = "bignum_warning_cast_lossy").
    • Compatible with rlang 1.0.0.

  • vignette("operations") has been removed and this documentation has been moved to man topics.

bignum 0.2.2

  • Adapted tests for testthat 3.1.0 (#27).

bignum 0.2.1

  • format() no longer checks for misspelled arguments. This previously caused issues when storing a bignum vector inside a data.frame or data.table (#25).

bignum 0.2.0

New features

  • New vignette("type-hierarchy") and vignette("precision").
  • format() functions now support customized output.
    • New sigfig and digits arguments control the displayed precision.
    • New notation argument chooses decimal, scientific or hexadecimal output.
    • New options "bignum.sigfig" and "bignum.max_dec_width" determine the default formatting.
  • When a bignum vector is stored in a tibble column, the formatting is adjusted to aid reading data vertically.
    • The decimal point and exponent are aligned across rows and negative numbers are colored red.
    • The options "pillar.sigfig" and "pillar.max_dec_width" determine tibble formatting.
    • See vignette("digits", package = "pillar") for details.
  • digamma() and trigamma() operations are now supported.
  • log() now supports the base argument.

Bug fixes

  • Casting a non-integer double() to biginteger() now returns the truncated integer, consistent with base vectors. Previously NA was returned. A lossy cast warning is still raised.
  • Casting a large double() to biginteger() now works correctly. Previously NA was returned, depending on the value of options("scipen").
  • Casting Inf to biginteger() now raises a lossy cast warning.
  • Casting a large biginteger() to bigfloat() now raises a lossy cast warning when the bigfloat() precision is exceeded.
  • is.finite() and is.infinite() now correctly handle large bigfloat() values. Previously large values were considered infinite.
  • Comparisons between biginteger() and double() vectors are now possible (e.g. biginteger(2) > 1.5). Previously a lossy cast error was raised.

bignum 0.1.0

First CRAN release.

  • Numeric vector classes:

    • biginteger() stores any integer (i.e. arbitrary precision).
    • bigfloat() stores 50 decimal digits of precision.

  • Constants for common situations: NA_biginteger_, NA_bigfloat_, bigpi.

  • Support for many basic operations:

    • Check for special values (help("bignum-special")):
      • is.na(), is.finite(), is.infinite(), is.nan()
    • Comparison (help("bignum-compare")):
      • <, >, <=, >=, ==, !=
    • Arithmetic (help("bignum-arith")):
      • +, -, *, /, ^, %%, %/%
    • Mathematical (help("bignum-math")):
      • sum(), prod(), max(), min(), range(), mean()
      • cumsum(), cumprod(), cummax(), cummin()
      • floor(), ceiling(), trunc()
      • abs(), sign(), sqrt()
      • log(), log10(), log2(), log1p(), exp(), expm1()
      • cos(), sin(), tan(), acos(), asin(), atan(), cospi(), sinpi(), tanpi()
      • cosh(), sinh(), tanh(), acosh(), asinh(), atanh()
      • gamma(), lgamma(), factorial(), lfactorial()