cern.jet.math.tdouble

Class DoubleMult

java.lang.Object

cern.jet.math.tdouble.DoubleMult

All Implemented Interfaces:

DoubleFunction

public final class DoubleMult
extends java.lang.Object
implements DoubleFunction

Only for performance tuning of compute intensive linear algebraic computations. Constructs functions that return one of

• a * constant
• a / constant

a is variable, constant is fixed, but for performance reasons publicly accessible. Intended to be passed to matrix.assign(function) methods.

Field Summary

Fields

Modifier and Type	Field and Description
double	multiplicator Public read/write access to avoid frequent object construction.

Method Summary

Modifier and Type	Method and Description
double	apply(double a) Returns the result of the function evaluation.
static DoubleMult	div(double constant) a / constant.
static DoubleMult	mult(double constant) a * constant.

Methods inherited from class java.lang.Object

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

Field Detail

multiplicator

public double multiplicator

Public read/write access to avoid frequent object construction.

Method Detail

apply

public final double apply(double a)

Returns the result of the function evaluation.

Specified by:

apply in interface DoubleFunction

Parameters:

a - argument passed to the function.

Returns:

the result of the function.

div

public static DoubleMult div(double constant)

a / constant.

mult

public static DoubleMult mult(double constant)

a * constant.