Crate calculator_util[−][src]
Expand description
calculator_util
Useful functions and traits for writing a calculator app in Rust.
This crate has implementation for String, that you can parse mathmatical
equation strings to Reverse Polish Notation, aka postfix notation, which can
be used for mathmatical evaluation with some provided functions under operations.rs.
Example
use calculator_util::{ExprParser, number::Number};
let equation = "(5+6) * 7".to_string();
let result = equation.eval();
assert_eq!(result, Number::from(77));
println!("{}", result); // 77