drasys.or.prob
Class MultiplicativeCongruential

java.lang.Object
  |
  +--drasys.or.prob.MultiplicativeCongruential

public class MultiplicativeCongruential

extends java.lang.Object

implements RandomI, java.io.Serializable

An implementation of the Parker and Miller minimal standard multiplicative congruential random number generator.

See Also:

LinearCongruential,

References:

The Art of Computer Programming: Seminumerical Algorithms (Vol 2, 3rd Ed)
    Donald Ervin Knuth; Hardcover
Numerical Recipes in C : The Art of Scientific Computing
    William H. Press, et al / Hardcover / Published 1993
Probability and Statistics
    Morris H. Degroot / Hardcover / Published 1986
Mathematical Statistics With Applications
    Dennis D. Wackerly, et al / Hardcover / Published 1996
, Serialized Form

Constructor Summary

MultiplicativeCongruential()

MultiplicativeCongruential(long seed)

 

Method Summary
long	next()           Gets the next number from the generator.
double	nextDouble()           Gets the next double value from the generator.
void	setSeed(long seed)           Sets the seed for the random number generator.
int	sizeOfBits()           Gets the number of valid bits in a long value returned from the generator.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

MultiplicativeCongruential

public MultiplicativeCongruential()

MultiplicativeCongruential

public MultiplicativeCongruential(long seed)

setSeed

public void setSeed(long seed)

Sets the seed for the random number generator.

Specified by:

setSeed in interface RandomI

nextDouble

public double nextDouble()

Gets the next double value from the generator.

Specified by:

nextDouble in interface RandomI

Returns:

a random value between 0.0 and 1.0;

sizeOfBits

public int sizeOfBits()

Gets the number of valid bits in a long value returned from the generator.

Specified by:

sizeOfBits in interface RandomI

Returns:

31 always.

next

public long next()

Gets the next number from the generator.

Specified by:

next in interface RandomI

Returns:

a 31 bit value;