org.lsmp.djep.vectorJep.function
Class Ele

java.lang.Object
  org.nfunk.jep.function.PostfixMathCommand
      org.lsmp.djep.vectorJep.function.Ele

All Implemented Interfaces:

BinaryOperatorI, PostfixMathCommandI

public class Ele

extends PostfixMathCommand

implements BinaryOperatorI

ele(x,i) returns the i-th element of x.

Author:

Rich Morris Created on 15-Nov-2003

Field Summary

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

curNumberOfParameters, numberOfParameters

Constructor Summary

Ele()

Method Summary

Dimensions	calcDim(Dimensions ldim, Dimensions rdim) Find the dimensions of this operator when applied to arguments with given dimensions.
MatrixValueI	calcValue(MatrixValueI res, MatrixValueI param1, MatrixValueI param2) Calculates the value of this operator for given input with results stored in res.
void	run(java.util.Stack stack) Run the function on the stack.

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

Methods inherited from interface org.nfunk.jep.function.PostfixMathCommandI

getNumberOfParameters, setCurNumberOfParameters

Constructor Detail

Ele

public Ele()

Method Detail

calcDim

public Dimensions calcDim(Dimensions ldim,
                          Dimensions rdim)
                   throws ParseException

Description copied from interface: BinaryOperatorI

Find the dimensions of this operator when applied to arguments with given dimensions.

Specified by:

calcDim in interface BinaryOperatorI

Throws:

ParseException

calcValue

public MatrixValueI calcValue(MatrixValueI res,
                              MatrixValueI param1,
                              MatrixValueI param2)
                       throws ParseException

Description copied from interface: BinaryOperatorI

Calculates the value of this operator for given input with results stored in res. res is returned. Using this method is slightly faster than the standard run method as it eliminates the construction of tempoary objects.

Specified by:

calcValue in interface BinaryOperatorI

Throws:

ParseException

run

public void run(java.util.Stack stack)
         throws ParseException

Description copied from interface: PostfixMathCommandI

Run the function on the stack. Pops the arguments from the stack, and pushes the result on the top of the stack.

Specified by:

run in interface PostfixMathCommandI

Overrides:

run in class PostfixMathCommand

Throws:

ParseException