net.sourceforge.cilib.functions.continuous
Class GoldsteinPrice

java.lang.Object
  net.sourceforge.cilib.functions.Function
      net.sourceforge.cilib.functions.ContinuousFunction
          net.sourceforge.cilib.functions.continuous.GoldsteinPrice

All Implemented Interfaces:

Serializable, Cloneable

public class GoldsteinPrice
extends ContinuousFunction

The Goldstein-Price function.

Minimum: f(x) = 3; x = (0, -1)

-2 <= x <= 2

Author:

Gary Pampara

See Also:

Serialized Form

Constructor Summary

GoldsteinPrice()
Create a new instance of GoldsteinPrice.

Method Summary

double	evaluate(Vector x) Evaluate the function with the given Vector as input.
GoldsteinPrice	getClone() Create a cloned copy of the current object and return it.
Object	getMinimum() Get the minimum of the function.

Methods inherited from class net.sourceforge.cilib.functions.ContinuousFunction

evaluate, getMaximum

Methods inherited from class net.sourceforge.cilib.functions.Function

getBehavioralDomainRegistry, getDimension, getDomain, getDomainRegistry, setBehavioralDomain, setBehaviouralDomainRegistry, setDomain

Methods inherited from class java.lang.Object

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

Constructor Detail

GoldsteinPrice

public GoldsteinPrice()

Create a new instance of GoldsteinPrice. Domain defaults to R(-2, 2)^2

Method Detail

getClone

public GoldsteinPrice getClone()

Create a cloned copy of the current object and return it. In general the created copy will be a deep copy of the provided instance. As a result this operation an be quite expensive if used incorrectly.

Specified by:

getClone in interface Cloneable

Specified by:

getClone in class ContinuousFunction

Returns:

An exact clone of the current object instance.

See Also:

Object.clone()

getMinimum

public Object getMinimum()

Get the minimum of the function. The value of the minimum of 3.0.

Overrides:

getMinimum in class ContinuousFunction

Returns:

The minimum function value.

evaluate

public double evaluate(Vector x)

Evaluate the function with the given Vector as input.

Specified by:

evaluate in class ContinuousFunction

Parameters:

x - The input Vector.

Returns:

The value of the evaluation.