cern.jet.random.tdouble.engine

Class MersenneTwister64

java.lang.Object

cern.colt.PersistentObject

cern.jet.random.tdouble.engine.DoubleRandomEngine

cern.jet.random.tdouble.engine.DoubleMersenneTwister

cern.jet.random.tdouble.engine.MersenneTwister64

All Implemented Interfaces:

DoubleFunction, IntFunction, LongFunction, Serializable, Cloneable

public class MersenneTwister64
extends DoubleMersenneTwister

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:

DoubleMersenneTwister, Serialized Form

Field Summary

Fields inherited from class cern.jet.random.tdouble.engine.DoubleMersenneTwister

DEFAULT_SEED

Constructor Summary

Constructors

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

Methods

Modifier and Type	Method and Description
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.tdouble.engine.DoubleMersenneTwister

clone, nextInt

Methods inherited from class cern.jet.random.tdouble.engine.DoubleRandomEngine

apply, apply, apply, makeDefault, nextDouble, nextFloat, nextLong

Methods inherited from class java.lang.Object

equals, 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(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 DoubleRandomEngine