mathjs

![math.js](https://raw.githubusercontent.com/josdejong/mathjs/develop/misc/img/mathjs.svg)

[https://mathjs.org](https://mathjs.org)

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with different data types like numbers, big numbers, complex numbers, fractions, units, and matrices. Powerful and easy to use.

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## Features

- Supports numbers, bignumbers, bigints, complex numbers, fractions, units, strings, arrays, and matrices.
- Is compatible with JavaScript's built-in Math library.
- Contains a flexible expression parser.
- Does symbolic computation.
- Comes with a large set of built-in functions and constants.
- Can be used as a command line application as well.
- Runs on any JavaScript engine.
- Is easily extensible.
- Open source.

## Usage

Math.js can be used in both node.js and in the browser.

Install math.js using [npm](https://www.npmjs.com/package/mathjs):

    npm install mathjs

Or download mathjs via one of the CDN's listed on the downloads page:

    [https://mathjs.org/download.html](https://mathjs.org/download.html#download)

Math.js can be used similar to JavaScript's built-in Math library. Besides that,
math.js can evaluate
[expressions](https://mathjs.org/docs/expressions/index.html)
and supports
[chained operations](https://mathjs.org/docs/core/chaining.html).

```js
import {
  atan2, chain, derivative, e, evaluate, log, pi, pow, round, sqrt
} from 'mathjs'

// functions and constants
round(e, 3)                    // 2.718
atan2(3, -3) / pi              // 0.75
log(10000, 10)                 // 4
sqrt(-4)                       // 2i
pow([[-1, 2], [3, 1]], 2)      // [[7, 0], [0, 7]]
derivative('x^2 + x', 'x')     // 2 * x + 1

// expressions
evaluate('12 / (2.3 + 0.7)')   // 4
evaluate('12.7 cm to inch')    // 5 inch
evaluate