Package org.apache.commons.math.random

Class Well19937c

java.lang.Object

org.apache.commons.math.random.BitsStreamGenerator

org.apache.commons.math.random.AbstractWell

org.apache.commons.math.random.Well19937c

All Implemented Interfaces:

Serializable, RandomGenerator

public class Well19937c
extends AbstractWell

This class implements the WELL19937c 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:

2.2

See Also:

• WELL Random number generator
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
Well19937c()	Creates a new random number generator.
Well19937c(int seed)	Creates a new random number generator using a single int seed.
Well19937c(int[] seed)	Creates a new random number generator using an int array seed.
Well19937c(long seed)	Creates a new random number generator using a single long seed.

Method Summary

Methods inherited from class org.apache.commons.math.random.AbstractWell

setSeed, setSeed, setSeed

Methods inherited from class org.apache.commons.math.random.BitsStreamGenerator

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

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Well19937c

public Well19937c()

Creates a new random number generator.

The instance is initialized using the current time as the seed.

Well19937c

public Well19937c(int seed)

Creates a new random number generator using a single int seed.

Parameters:

seed - the initial seed (32 bits integer)

Well19937c

public Well19937c(int[] seed)

Creates a new random number generator using an int array seed.

Parameters:

seed - the initial seed (32 bits integers array), if null the seed of the generator will be related to the current time

Well19937c

public Well19937c(long seed)

Creates a new random number generator using a single long seed.

Parameters:

seed - the initial seed (64 bits integer)