An extensive math library for JavaScript and Node.js

Math.js is an extensive math library for JavaScript and Node.js. It features real and complex numbers, units, matrices, a large set of mathematical functions, and a flexible expression parser. Powerful and easy to use.

Features

• Supports numbers, complex numbers, units, strings, arrays, and matrices.
• Is compatible with JavaScript’s built-in Math library.
• Contains a flexible expression parser.
• Supports chained operations.
• Comes with a large set of built-in functions and constants.
• Has no dependencies. Runs on any JavaScript engine.
• Is easily extensible.

// load math.js
var math = require('mathjs');

// functions and constants
math.round(math.e, 3);            // 2.718
math.atan2(3, -3) / math.pi;      // 0.75
math.log(1000, 10);               // 3
math.sqrt(-4);                    // 2i
math.pow([[-1, 2], [3, 1]], 2);
     // [[7, 0], [0, 7]]

// expressions
math.eval('1.2 / (2.3 + 0.7)');   // 0.4
math.eval('5.08 cm in inch');     // 2 inch
math.eval('sin(45 deg) ^ 2');     // 0.5
math.eval('9 / 3 + 2i');          // 3 + 2i
math.eval('det([-1, 2; 3, 1])');  // -7

// chained operations
math.select(3)
    .add(4)
    .multiply(2)
    .done(); // 14

Install or download

Math.js can be installed using npm:

npm install mathjs

The latest version of math.js can be downloaded below:

Documentation and source code

Documentation and source code can be found on github:

https://github.com/josdejong/mathjs

License

Math.js is open source and licensend under the Apache 2.0 License.