org.lsmp.djep.vectorJep.function

Class MMultiply

java.lang.Object

org.nfunk.jep.function.PostfixMathCommand

org.nfunk.jep.function.Multiply

org.lsmp.djep.vectorJep.function.MMultiply

All Implemented Interfaces:

BinaryOperatorI, PostfixMathCommandI

Direct Known Subclasses:

MDot

public class MMultiply
extends Multiply
implements BinaryOperatorI

An extension of the Multiply to with vectors and matricies. Must faster (1/3) if used with MatrixJep and calcValue routines. Note vector * vector treated as col_vec * row_vec -> matrix.

Since:

2.3.2 Improved error reporting

Author:

Rich Morris Created on 27-Jul-2003 TODO add handeling of tensors

Field Summary

Fields

Modifier and Type	Field and Description
protected Add	add
protected Subtract	sub

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

curNumberOfParameters, numberOfParameters

Constructor Summary

Constructors

Constructor and Description
MMultiply()

Method Summary

Modifier and Type	Method and Description
Dimensions	calcDim(Dimensions l, Dimensions r) 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.
Object	mul(MatrixValueI param1, MatrixValueI param2) Multiply two objects.
Object	mul(Object param1, Object param2) Multiply two objects.
void	run(Stack stack) need to redo this as the standard jep version assumes commutivity.

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

mul, mul, mul, mul, mul

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

checkNumberOfParameters, 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

checkNumberOfParameters, getNumberOfParameters, setCurNumberOfParameters

Field Detail

add

protected Add add

sub

protected Subtract sub

Constructor Detail

MMultiply

public MMultiply()

Method Detail

run

public void run(Stack stack)
         throws ParseException

need to redo this as the standard jep version assumes commutivity.

Specified by:

run in interface PostfixMathCommandI

Overrides:

run in class Multiply

Throws:

ParseException

mul

public Object mul(Object param1,
                  Object param2)
           throws ParseException

Multiply two objects.

Overrides:

mul in class Multiply

Throws:

ParseException

mul

public Object mul(MatrixValueI param1,
                  MatrixValueI param2)
           throws ParseException

Multiply two objects.

Throws:

ParseException

calcDim

public Dimensions calcDim(Dimensions l,
                          Dimensions r)
                   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