An extensive math library for JavaScript and Node.js #

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser and offers an integrated solution to work with numbers, big numbers, complex numbers, units, and matrices. Powerful and easy to use.

Features #

Example #

Here some example code demonstrating how to use the library. Click here to fiddle around.

// functions and constants
math.round(math.e, 3);            // 2.718
math.atan2(3, -3) / math.pi;      // 0.75
math.log(10000, 10);              // 4
math.sqrt(-4);                    // 2i
math.pow([[-1, 2], [3, 1]], 2);
     // [[7, 0], [0, 7]]

// expressions
math.eval('1.2 * (2 + 4.5)');     // 7.8
math.eval('5.08 cm to 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

Demo #

Try the expression parser below.
See Math Notepad for a full application.

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Shortcut keys:
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  • Press Ctrl+F11 to toggle full screen
  • Enter "clear" to clear history
 
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