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big-number

BigNumber.js

Build Status

BigNumber.js is a light javascript library for node.js and the browser. It supports arithmetic operations on Big Integers.

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

: (http://alexbardas.github.io/bignumber.js/)

Install: npm install

Test: npm test

Usage:

  • in node:
    var BigNumber = require('big-number');
 
    BigNumber(5).plus(97).minus(53).plus(434).multiply(5435423).add(321453).multiply(21).div(2).pow(2);
    // 760056543044267246001 
  • in the browser:
    <script src ="big-number.js"></script>
 
    n(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);