cern.jet.random.engine
Class MersenneTwister64

java.lang.Object
  cern.colt.PersistentObject
      cern.jet.random.engine.RandomEngine
          cern.jet.random.engine.MersenneTwister
              cern.jet.random.engine.MersenneTwister64

All Implemented Interfaces:

DoubleFunction, IntFunction, java.io.Serializable, java.lang.Cloneable

public class MersenneTwister64
extends MersenneTwister

Same as MersenneTwister except that method raw() returns 64 bit random numbers instead of 32 bit random numbers.

Version:

1.0, 09/24/99

Author:

wolfgang.hoschek@cern.ch

See Also:

MersenneTwister, Serialized Form

Field Summary

Fields inherited from class cern.jet.random.engine.MersenneTwister

DEFAULT_SEED

Fields inherited from class cern.colt.PersistentObject

serialVersionUID

Constructor Summary

MersenneTwister64()
Constructs and returns a random number generator with a default seed, which is a constant.

MersenneTwister64(java.util.Date d)
Constructs and returns a random number generator seeded with the given date.

MersenneTwister64(int seed)
Constructs and returns a random number generator with the given seed.

Method Summary

double

raw() Returns a 64 bit uniformly distributed random number in the open unit interval (0.0,1.0) (excluding 0.0 and 1.0).

Methods inherited from class cern.jet.random.engine.MersenneTwister

clone, nextBlock, nextInt, setSeed

Methods inherited from class cern.jet.random.engine.RandomEngine

apply, apply, makeDefault, nextDouble, nextFloat, nextLong

Methods inherited from class java.lang.Object

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

Constructor Detail

MersenneTwister64

public MersenneTwister64()

Constructs and returns a random number generator with a default seed, which is a constant.

MersenneTwister64

public MersenneTwister64(int seed)

Constructs and returns a random number generator with the given seed.

Parameters:

seed - should not be 0, in such a case MersenneTwister64.DEFAULT_SEED is silently substituted.

MersenneTwister64

public MersenneTwister64(java.util.Date d)

Constructs and returns a random number generator seeded with the given date.

Parameters:

d - typically new java.util.Date()

Method Detail

raw

public double raw()

Returns a 64 bit uniformly distributed random number in the open unit interval (0.0,1.0) (excluding 0.0 and 1.0).

Overrides:

raw in class RandomEngine