cern.jet.math.tfcomplex

Class FComplexPlusMultFirst

java.lang.Object

cern.jet.math.tfcomplex.FComplexPlusMultFirst

All Implemented Interfaces:

FComplexFComplexFComplexFunction

public class FComplexPlusMultFirst
extends Object
implements FComplexFComplexFComplexFunction

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

• a*constant + b
• a*constant - b
• a/constant + b
• a/constant - b

a and b are variables, constant is fixed, but for performance reasons publicly accessible. Intended to be passed to matrix.assign(otherMatrix,function) methods.

Field Summary

Fields

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

Method Summary

Methods

Modifier and Type	Method and Description
float[]	apply(float[] a, float[] b) Returns the result of the function evaluation.
static FComplexPlusMultFirst	minusDiv(float[] constant) a - b/constant.
static FComplexPlusMultFirst	minusMult(float[] constant) a - b*constant.
static FComplexPlusMultFirst	plusDiv(float[] constant) a + b/constant.
static FComplexPlusMultFirst	plusMult(float[] constant) a + b*constant.

Methods inherited from class java.lang.Object

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

Field Detail

multiplicator

public float[] multiplicator

Public read/write access to avoid frequent object construction.

Method Detail

apply

public final float[] apply(float[] a,
            float[] b)

Returns the result of the function evaluation.

Specified by:

apply in interface FComplexFComplexFComplexFunction

Parameters:

a - the first argument passed to the function.

b - the second argument passed to the function.

Returns:

the result of the function.

minusDiv

public static FComplexPlusMultFirst minusDiv(float[] constant)

a - b/constant.

minusMult

public static FComplexPlusMultFirst minusMult(float[] constant)

a - b*constant.

plusDiv

public static FComplexPlusMultFirst plusDiv(float[] constant)

a + b/constant.

plusMult

public static FComplexPlusMultFirst plusMult(float[] constant)

a + b*constant.