org.lsmp.djep.vectorJep.function

Class MDot

java.lang.Object

org.nfunk.jep.function.PostfixMathCommand

org.nfunk.jep.function.Multiply

org.lsmp.djep.vectorJep.function.MMultiply

org.lsmp.djep.vectorJep.function.MDot

All Implemented Interfaces:

BinaryOperatorI, PostfixMathCommandI

public class MDot
extends MMultiply
implements BinaryOperatorI

The MDot operator.

Author:

Rich Morris Created on 23-Feb-2004

Field Summary

Fields inherited from class org.lsmp.djep.vectorJep.function.MMultiply

add, sub

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

curNumberOfParameters, numberOfParameters

Constructor Summary

Constructors

Constructor and Description
MDot()

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 lhs, MatrixValueI rhs) calculates the value.
Scaler	calcValue(Scaler res, MVector lhs, MVector rhs)
Object	dot(MVector lhs, MVector rhs) returns lhs .
Object	dot(Object param1, Object param2) returns param1 .
void	run(Stack stack) need to redo this as the standard jep version assumes commutivity.

Methods inherited from class org.lsmp.djep.vectorJep.function.MMultiply

mul, mul

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

Constructor Detail

MDot

public MDot()

Method Detail

calcDim

public Dimensions calcDim(Dimensions l,
                          Dimensions r)

Description copied from interface: BinaryOperatorI

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

Specified by:

calcDim in interface BinaryOperatorI

Overrides:

calcDim in class MMultiply

calcValue

public MatrixValueI calcValue(MatrixValueI res,
                              MatrixValueI lhs,
                              MatrixValueI rhs)
                       throws ParseException

calculates the value.

Specified by:

calcValue in interface BinaryOperatorI

Overrides:

calcValue in class MMultiply

Parameters:

res - - results will be stored in this object

lhs - - lhs value

rhs - - rhs value

Returns:

res

Throws:

ParseException

calcValue

public Scaler calcValue(Scaler res,
                        MVector lhs,
                        MVector rhs)
                 throws ParseException

Throws:

ParseException

run

public void run(Stack stack)
         throws ParseException

Description copied from class: MMultiply

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

Specified by:

run in interface PostfixMathCommandI

Overrides:

run in class MMultiply

Throws:

ParseException

dot

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

returns param1 . param2. Defaults to scaler multiplication if parameters are not vectors.

Throws:

ParseException

dot

public Object dot(MVector lhs,
                  MVector rhs)
           throws ParseException

returns lhs . rhs

Throws:

ParseException