com.epochx.representation.dbl
Class CosineFunction

java.lang.Object
  com.epochx.representation.Node<TYPE>
      com.epochx.representation.FunctionNode<java.lang.Double>
          com.epochx.representation.dbl.CosineFunction

All Implemented Interfaces:

java.lang.Cloneable

public class CosineFunction
extends FunctionNode<java.lang.Double>

A FunctionNode which performs the trigonometric function of cosine.

Constructor Summary

CosineFunction()
Construct a CosineFunction with no children.

CosineFunction(Node<java.lang.Double> child)
Construct a CosineFunction with one child.

Method Summary

java.lang.Double	evaluate() Evaluating a CosineFunction involves evaluating the child then calculating the cosine of the result.
java.lang.String	getFunctionName() Get the unique name that identifies this function.

Methods inherited from class com.epochx.representation.FunctionNode

equals, toString

Methods inherited from class com.epochx.representation.Node

clone, getArity, getChild, getChildren, getDepth, getFunctionNodes, getLength, getNodesAtDepth, getNoDistinctFunctions, getNoDistinctTerminals, getNoFunctions, getNoTerminals, getNthNode, getTerminalNodes, hashCode, setChild, setChildren, setNthNode

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CosineFunction

public CosineFunction()

Construct a CosineFunction with no children.

CosineFunction

public CosineFunction(Node<java.lang.Double> child)

Construct a CosineFunction with one child. When evaluated, the child will be evaluated with cosine performed on the result.

Parameters:

child - The child which cosine will be performed on.

Method Detail

evaluate

public java.lang.Double evaluate()

Evaluating a CosineFunction involves evaluating the child then calculating the cosine of the result.

Specified by:

evaluate in class Node<java.lang.Double>

Returns:

The result of evaluating the candidate program.

getFunctionName

public java.lang.String getFunctionName()

Get the unique name that identifies this function.

Specified by:

getFunctionName in class FunctionNode<java.lang.Double>

Returns:

the unique name for the CosineFunction which is COS.