Package org.apache.commons.rng.core.source32

Class Well19937a

java.lang.Object

org.apache.commons.rng.core.BaseProvider

org.apache.commons.rng.core.source32.IntProvider

org.apache.commons.rng.core.source32.AbstractWell

org.apache.commons.rng.core.source32.Well19937a

All Implemented Interfaces:

RandomIntSource, RestorableUniformRandomProvider, UniformRandomProvider

Direct Known Subclasses:

Well19937c

public class Well19937a
extends AbstractWell

This class implements the WELL19937a pseudo-random number generator from François Panneton, Pierre L'Ecuyer and Makoto Matsumoto.

This generator is described in a paper by François Panneton, Pierre L'Ecuyer and Makoto Matsumoto Improved Long-Period Generators Based on Linear Recurrences Modulo 2 ACM Transactions on Mathematical Software, 32, 1 (2006). The errata for the paper are in wellrng-errata.txt.

Since:

1.0

See Also:

WELL Random number generator

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.commons.rng.core.source32.AbstractWell

AbstractWell.IndexTable

Field Summary

Fields inherited from class org.apache.commons.rng.core.source32.AbstractWell

index, v

Constructor Summary

Constructors

Constructor	Description
Well19937a(int[] seed)	Creates a new random number generator.

Method Summary

Modifier and Type	Method	Description
int	next()

Methods inherited from class org.apache.commons.rng.core.source32.AbstractWell

getStateInternal, setStateInternal

Methods inherited from class org.apache.commons.rng.core.source32.IntProvider

nextBoolean, nextBytes, nextBytes, nextDouble, nextFloat, nextInt, nextLong

Methods inherited from class org.apache.commons.rng.core.BaseProvider

checkIndex, checkStateSize, composeStateInternal, fillState, fillState, nextInt, nextLong, restoreState, saveState, splitStateInternal, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

Well19937a

public Well19937a(int[] seed)

Creates a new random number generator.

Parameters:

seed - Initial seed.

Method Details

next

public int next()

Returns:

the next random value.