Math.js – 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.

Math.js
Math.js

Here are some examples that demonstrates the capabilities of math.js

// 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

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