org.lsmp.djep.xjep.function
Class Product

java.lang.Object
  org.nfunk.jep.function.PostfixMathCommand
      org.lsmp.djep.xjep.function.SumType
          org.lsmp.djep.xjep.function.Product

All Implemented Interfaces:

PostfixMathCommandI, SpecialEvaluationI

public class Product

extends SumType

A product function product(x^2,x,1,10) finds the product of x^2 with x running from 1 to 10.

Author:

Rich Morris Created on 10-Sept-2004

Field Summary

Fields inherited from class org.lsmp.djep.xjep.function.SumType

name

Fields inherited from class org.nfunk.jep.function.PostfixMathCommand

curNumberOfParameters, numberOfParameters

Constructor Summary

Product()

Method Summary

java.lang.Object

evaluate(java.lang.Object[] elements) Evaluates the function given the set of y values.

Methods inherited from class org.lsmp.djep.xjep.function.SumType

evaluate, evaluate, run

Methods inherited from class org.nfunk.jep.function.PostfixMathCommand

checkStack, getNumberOfParameters, setCurNumberOfParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

Product

public Product()

Method Detail

evaluate

public java.lang.Object evaluate(java.lang.Object[] elements)
                          throws ParseException

Description copied from class: SumType

Evaluates the function given the set of y values. For example for Sum(x^2,x,1,5) the function will be passed the array [1,4,9,16,25].

Specified by:

evaluate in class SumType

Parameters:

elements - the y values

Returns:

the result of the function

Throws:

ParseException