cern.jet.math.tfloat
Class FloatPlusMultSecond

java.lang.Object
  cern.jet.math.tfloat.FloatPlusMultSecond

All Implemented Interfaces:

FloatFloatFunction

public final class FloatPlusMultSecond
extends Object
implements FloatFloatFunction

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

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

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

float

multiplicator Public read/write access to avoid frequent object construction.

Method Summary

float	apply(float a, float b) Returns the result of the function evaluation.
static FloatPlusMultSecond	minusDiv(float constant) a - b/constant.
static FloatPlusMultSecond	minusMult(float constant) a - b*constant.
static FloatPlusMultSecond	plusDiv(float constant) a + b/constant.
static FloatPlusMultSecond	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 FloatFloatFunction

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 FloatPlusMultSecond minusDiv(float constant)

a - b/constant.

minusMult

public static FloatPlusMultSecond minusMult(float constant)

a - b*constant.

plusDiv

public static FloatPlusMultSecond plusDiv(float constant)

a + b/constant.

plusMult

public static FloatPlusMultSecond plusMult(float constant)

a + b*constant.