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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 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.
Features #
- Supports numbers, big numbers, bigint, 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.
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.derivative('x^2 + x', 'x') // 2*x+1 math.pow([[-1, 2], [3, 1]], 2) // [[7, 0], [0, 7]]// expressions math.evaluate('1.2 * (2 + 4.5)') // 7.8 math.evaluate('12.7 cm to inch') // 5 inch math.evaluate('sin(45 deg) ^ 2') // 0.5 math.evaluate('9 / 3 + 2i') // 3 + 2i math.evaluate('det([-1, 2; 3, 1])') // -7
// chaining math.chain(3) .add(4) .multiply(2) .done() // 14
Demo #
Try the expression parser below.
See Math Notepad for a full application.
- Press S to set focus to the input field
- Press Ctrl+F11 to toggle full screen
- Press Tab to autocomplete (repeat to cycle choices)
- Enter "clear" to clear history
