Package cern.jet.random

Class BreitWignerMeanSquare

java.lang.Object

cern.colt.PersistentObject

cern.jet.random.AbstractDistribution

cern.jet.random.AbstractContinousDistribution

cern.jet.random.BreitWigner

cern.jet.random.BreitWignerMeanSquare

All Implemented Interfaces:

DoubleFunction, IntFunction, Serializable, Cloneable

public class BreitWignerMeanSquare
extends BreitWigner

Mean-square BreitWigner distribution; See the math definition.

Instance methods operate on a user supplied uniform random number generator; they are unsynchronized.

Static methods operate on a default uniform random number generator; they are synchronized.

Implementation: This is a port of RandBreitWigner used in CLHEP 1.4.0 (C++).

Version:

1.0, 09/24/99

Author:

wolfgang.hoschek@cern.ch

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected static BreitWigner	shared
protected Uniform	uniform

Fields inherited from class cern.jet.random.BreitWigner

cut, gamma, mean

Fields inherited from class cern.jet.random.AbstractDistribution

randomGenerator

Fields inherited from class cern.colt.PersistentObject

serialVersionUID

Constructor Summary

Constructors

Constructor	Description
BreitWignerMeanSquare(double mean, double gamma, double cut, RandomEngine randomGenerator)	Constructs a mean-squared BreitWigner distribution.

Method Summary

Modifier and Type	Method	Description
Object	clone()	Returns a deep copy of the receiver; the copy will produce identical sequences.
double	nextDouble(double mean, double gamma, double cut)	Returns a mean-squared random number from the distribution; bypasses the internal state.
static double	staticNextDouble(double mean, double gamma, double cut)	Returns a random number from the distribution.

Methods inherited from class cern.jet.random.BreitWigner

nextDouble, setState, toString

Methods inherited from class cern.jet.random.AbstractDistribution

apply, apply, getRandomGenerator, makeDefaultGenerator, nextInt, setRandomGenerator

Methods inherited from class java.lang.Object

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

Field Details

uniform

protected Uniform uniform

shared

protected static BreitWigner shared

Constructor Details

BreitWignerMeanSquare

public BreitWignerMeanSquare(double mean,
 double gamma,
 double cut,
 RandomEngine randomGenerator)

Constructs a mean-squared BreitWigner distribution.

Parameters:

cut - cut==Double.NEGATIVE_INFINITY indicates "don't cut".

Method Details

clone

public Object clone()

Returns a deep copy of the receiver; the copy will produce identical sequences. After this call has returned, the copy and the receiver have equal but separate state.

Overrides:

clone in class AbstractDistribution

Returns:

a copy of the receiver.

nextDouble

public double nextDouble(double mean,
 double gamma,
 double cut)

Returns a mean-squared random number from the distribution; bypasses the internal state.

Overrides:

nextDouble in class BreitWigner

Parameters:

cut - cut==Double.NEGATIVE_INFINITY indicates "don't cut".

staticNextDouble

public static double staticNextDouble(double mean,
 double gamma,
 double cut)

Returns a random number from the distribution.

Parameters:

cut - cut==Double.NEGATIVE_INFINITY indicates "don't cut".