:heavy_division_sign: - MEP is a dependency free mathematical expression parser written in TypeScript.

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 ES modules:

``js
import * mep from "https://deno.land/x/http_ece@v0.1.0/mod.ts";
`

Using npm:

`shell
$ npm install @negrel/mep
`

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

Exemple

`js
import { compute, registerConstant } from "@negrel/mep";
// or
// const { compute, registerConstant } = require('@negrel/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
``

$3

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