Bignumber.js

Arithmetic operations on big numbers

View the Project on GitHub alexbardas/bignumber.js

BigNumber.js

Build Status

BigNumber.js is a light javascript library for node.js and the browser, dealing with operations on big integers.

Usage

Include <script src="../bignumber.js"></script> in source file

The library exposes the function BigNumber( ) in the global scope, representing a factory method for generating big integer numbers. The bignumber factory can be called with an integer, a number represented as a string or another bignumber. The allowed operations are described below.

Demo

Result:

It does one thing, implementing only the main arithmetic operations for big integers, but it does it very well and very fast.

It is build with performance in mind and supports all basic arithmetic operations (+, -, *, /, ^, abs). Works with both positive and negative integers.

Usage

    var BigNumber = require('big-number');

    BigNumber(5).plus(97).minus(53).plus(434).multiply(5435423).add(321453).multiply(21).div(2).pow(2)
    // 760056543044267246001

API

Supported methods: add/plus, minus/subtract, multiply/mult, divide/div, power/pow, mod, equals, lt, lte, gt, gte, isZero, abs

Addition
    BigNumber(2).plus(10); // or
    BigNumber(2).add(10);
Subtraction
    BigNumber(2).minus(10); // or
    BigNumber(2).subtract(10);
Multiplication
    BigNumber(2).multiply(10); // or
    BigNumber(2).mult(10);
Division
    BigNumber(2).divide(10); // or
    BigNumber(2).div(10);
Modulo
    BigNumber(53).mod(14);
Power
    BigNumber(2).power(10); // or
    BigNumber(2).pow(10);