mep v1.0.4

:heavy_division_sign: - MEP is a mathematical expression parser written in JavaScript

Why ?

I needed an extensible mathematical expression parser for 1Calc

This package does the following:

• Lex mathematical expressions with custom operations, constants and functions into tokens
• Parse tokens and return an RPN array of numbers / Operation.
• Compute an RPN array and return the result

Installation

Using npm:

$ npm install mep

You can now import mep as an ES modules or a CommonJS module.

Exemple

import { compute, registerConstant } from 'mep' 
// or
// const { compute, registerConstant } = require('mep')

console.log('Result:', compute('log2(5 * 65 + cos(PI ^ 2))'))
// Result: 8.340283256791498

registerConstant('PI2', Math.PI ** 2)
console.log('Result:', compute('log2(5 * 65 + cos(PI2))'))
// Result: 8.340283256791498

Contributing

If you want to contribute to MEP to add a feature or improve the code contact me at negrel.dev@protonmail.com, open an issue or make a pull request.

:stars: Show your support

Please give a :star: if this project helped you!

:scroll: License

MIT © Alexandre Negrel