https://github.com/boo1ean/mersenne-twister

Mersenne Twister pseudorandom number generator
https://github.com/boo1ean/mersenne-twister

Last synced: about 2 months ago
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Mersenne Twister pseudorandom number generator

• Host: GitHub
• URL: https://github.com/boo1ean/mersenne-twister
• Owner: boo1ean
• Created: 2014-02-02T11:41:57.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2016-12-15T07:56:03.000Z (almost 8 years ago)
• Last Synced: 2024-07-18T16:35:28.880Z (2 months ago)
• Language: JavaScript
• Homepage:
• Size: 9.77 KB
• Stars: 118
• Watchers: 5
• Forks: 23
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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README

        
## Pseudorandom number generator [![Build Status](https://travis-ci.org/boo1ean/mersenne-twister.png?branch=master)](https://travis-ci.org/boo1ean/mersenne-twister)

Mersenne Twister pseudorandom number generator.

[Origin source](https://gist.github.com/banksean/300494) (generator interface was changed)

Algorithm - http://en.wikipedia.org/wiki/Mersenne_twister

## Installation

    $ npm install mersenne-twister

## Usage

```javascript

var MersenneTwister = require('mersenne-twister');

var generator = new MersenneTwister();

// Generates a random number on [0,1) real interval (same interval as Math.random)

generator.random();

// [0, 4294967295]

generator.random_int();

// [0,1]

generator.random_incl();

// (0,1)

generator.random_excl();

// [0,1) with 53-bit resolution

generator.random_long();

// [0, 2147483647]

generator.random_int31();

```

## Seeding

If you want to use a specific seed in order to get a repeatable random sequence, pass an integer into the constructor:

```javascript

var generator = new MersenneTwister(123);

``` 

and that will always produce the same random sequence.

Also you can do it on existing generator instance:

```javascript

generator.init_seed(123);

```

## License

See source