com.singularsys.jep.functions
Class Add

java.lang.Object
  extended by com.singularsys.jep.functions.PostfixMathCommand
      extended by com.singularsys.jep.functions.Add
All Implemented Interfaces:
PostfixMathCommandI, RealBinaryFunction

public class Add
extends PostfixMathCommand
implements RealBinaryFunction

Addition function. Supports any number of parameters although typically only 2 parameters are used.

Author:
nathan

Field Summary
 
Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand
curNumberOfParameters, numberOfParameters
 
Constructor Summary
Add()
           
 
Method Summary
 Complex add(Complex c1, Complex c2)
           
 Complex add(Complex c, java.lang.Number d)
           
 java.lang.Double add(java.lang.Number d1, java.lang.Number d2)
           
 java.lang.Object add(java.lang.Object param1, java.lang.Object param2)
          Adds two numbers together.
 java.util.Vector add(java.util.Vector v1, java.util.Vector v2)
           
 double evaluate(double l, double r)
           
 void run(java.util.Stack<java.lang.Object> stack)
          Calculates the result of applying the "+" operator to the arguments from the stack and pushes it back on the stack.
 
Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
checkNumberOfParameters, checkStack, getNumberOfParameters, setCurNumberOfParameters
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Add

public Add()
Method Detail

run

public void run(java.util.Stack<java.lang.Object> stack)
         throws EvaluationException
Calculates the result of applying the "+" operator to the arguments from the stack and pushes it back on the stack.

Specified by:
run in interface PostfixMathCommandI
Throws:
EvaluationException

add

public java.lang.Object add(java.lang.Object param1,
                            java.lang.Object param2)
                     throws EvaluationException
Adds two numbers together. The parameters can be of type Number, Complex, or String. If a certain combination of types is not supported, a EvaluationException is thrown.

Parameters:
param1 - The first parameter to be added.
param2 - The second parameter to be added.
Returns:
The sum of param1 and param2, or concatenation of the two if they are Strings.
Throws:
EvaluationException

add

public java.lang.Double add(java.lang.Number d1,
                            java.lang.Number d2)

add

public Complex add(Complex c1,
                   Complex c2)

add

public java.util.Vector add(java.util.Vector v1,
                            java.util.Vector v2)
                     throws EvaluationException
Throws:
EvaluationException

add

public Complex add(Complex c,
                   java.lang.Number d)

evaluate

public double evaluate(double l,
                       double r)
Specified by:
evaluate in interface RealBinaryFunction


Copyright © 2007 Singular Systems http://www.singularsys.com/jep