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exptree.operators
Class atan2  view atan2 download atan2.java

java.lang.Object
  extended byexptree.operators.atan2
All Implemented Interfaces:
operatorInterface, java.io.Serializable

public class atan2
extends java.lang.Object
implements operatorInterface, java.io.Serializable

Returns the atan2 of two expressionTrees This particular application expects all inputs and outputs on the expressionTree to be bound to [-1.0,1.0], so this function is not actually natural atan2.

Version:
1.1 08/19/2000

Constructor Summary
atan2()
           
 
Method Summary
 double evaluate(exptree.expressionTree[] params)
          Perform the operation.
 java.lang.String getName()
          Returns the operator's name.
 int getNumberOfParameters()
          Returns the number of parameters expected by the operator.
 void init()
          Performs any initialization the operator requires.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

atan2

public atan2()
Method Detail

evaluate

public double evaluate(exptree.expressionTree[] params)
Perform the operation.

Specified by:
evaluate in interface operatorInterface

getName

public java.lang.String getName()
Returns the operator's name.

Specified by:
getName in interface operatorInterface

init

public void init()
Performs any initialization the operator requires.

Specified by:
init in interface operatorInterface

getNumberOfParameters

public int getNumberOfParameters()
Returns the number of parameters expected by the operator.

Specified by:
getNumberOfParameters in interface operatorInterface