PEMEL

Overview

pemel is a Rust library providing a utilities for parsing and evaluating mathematical expressions.

Features

• Basic arithmetic operations
• Trigonometric functions
• Exponential and logarithmic functions
• Absolute value function
• Evaluation with multiple variables
• Numeric derivatives
• Implicit evaluation during parsing
• Substitution

Usage

Here is a simple example of how to use pemel:

use pemel::prelude::*;

fn main() {
    let input = "2 * x^2 - 5 * log(x)";
    let expr = Expr::parse(input, true).unwrap();
    let result = expr.eval_with_var("x", 10.0).unwrap();

    println!("{}", result); // Output: 195.0
}

Contributing

Untill I create a CONTRIBUTING.md file, I will not accept any pull requests.

License

This project is licensed under the MIT License. See the LICENSE file for details.