Class PlusMult

java.lang.Object
cern.jet.math.PlusMult
All Implemented Interfaces:
DoubleDoubleFunction
public final class PlusMult extends Object implements DoubleDoubleFunction
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

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

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    PlusMult(double multiplicator)
    Insert the method's description here.

  • Method Summary

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

    Methods inherited from class Object

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

  • Field Details

    • multiplicator

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

  • Constructor Details

    • PlusMult

      protected PlusMult(double multiplicator)
      Insert the method's description here. Creation date: (8/10/99 19:12:09)

  • Method Details

    • apply

      public final double apply(double a, double b)
      Returns the result of the function evaluation.
      Specified by:
      apply in interface DoubleDoubleFunction
      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 PlusMult minusDiv(double constant)
      a - b/constant.

    • minusMult

      public static PlusMult minusMult(double constant)
      a - b*constant.

    • plusDiv

      public static PlusMult plusDiv(double constant)
      a + b/constant.

    • plusMult

      public static PlusMult plusMult(double constant)
      a + b*constant.