# mathrs

**Repository Path**: L_Lawliet_moon/mathrs

## Basic Information

- **Project Name**: mathrs
- **Description**: 纯rust编写的表达式解析和表达式运算库，支持常见数学运算和设置变量。
- **Primary Language**: Unknown
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 2
- **Forks**: 0
- **Created**: 2021-12-02
- **Last Updated**: 2022-06-06

## Categories & Tags

**Categories**: Uncategorized

**Tags**: Rust, 编译原理, 大整数, 表达式

## README

# Math-rs
## 简介
使用纯rust编写的表达式解析、运算库。支持常见数学运算、设置变量。
## Example
```rust
use mathrs::expr::Expression;

let mut expr = Expression::parse("1 + 2*3 - x1 * x2");
expr.set_variable("x1", "2")
    .set_variable("x2", "2 * 2");
let result = expr.excute();
println!("result = {}", result);
expr.set_variable("x1", "sin(3.14)")
    .set_variable("x2", "1");
let result = expr.excute();
println!("result = {}", result);
```

![](imgs/example.png)