A basic scientific calculator implemented in Rust.
Supports:
- Arithmetic
- Sin, Cos, Tan, Arcsin, Arccos, Arctan
- Log, Ln
- Floor, Abs
- Constants: pi, e
- Variable assignment (ex:
x = 2) - Implicit multiplication (ex:
6(3 - 2)) - Implicit closing parantheses (ex:
9sin(pi/2)
Supports a calculator repl and a web interface. The web interface frontend is powered by Elm.
To run the calculator repl, run cargo run -- repl.
To run the calculator web interface, run cargo run -- web.
To build the web interface, cd into elm and run elm make src/main.elm --output=../static/index.html.
To build the rust executable, run cargo build.
The actual calculator logic is stored in the calculator crate. It is implemented with a custom lexer, parser, and evaluator, and exports a Calculator object that maintains an internal state of all previous calculations and the currently defined constants/variables.
Note: The project currently only works on Rust nightly since it uses Rocket and uses language features that have not yet been stabilized.