cern.jet.math.tdcomplex

Class DComplexMult

java.lang.Object

cern.jet.math.tdcomplex.DComplexMult

All Implemented Interfaces:

DComplexDComplexFunction

public final class DComplexMult
extends java.lang.Object
implements DComplexDComplexFunction

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.
double[]	apply(double re, double im) Returns the result of the function evaluation.
static DComplexMult	div(double[] constant) a / constant.
static DComplexMult	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 DComplexDComplexFunction

Parameters:

a - an argument passed to the function.

Returns:

the result of the function.

apply

public final double[] apply(double re,
                            double im)

Returns the result of the function evaluation.

Specified by:

apply in interface DComplexDComplexFunction

Parameters:

re - real part of an argument passed to the function

im - imaginary part of an argument passed to the function

Returns:

the result of the function.

div

public static DComplexMult div(double[] constant)

a / constant.

mult

public static DComplexMult mult(double[] constant)

a * constant.