org.lsmp.djep.vectorJep.function
Class VSum
java.lang.Object
org.nfunk.jep.function.PostfixMathCommand
org.lsmp.djep.vectorJep.function.VSum
- All Implemented Interfaces:
- UnaryOperatorI, PostfixMathCommandI
public class VSum
- extends PostfixMathCommand
- implements UnaryOperatorI
Adds the elements of a vector or matrix.
vsum([1,2,3]) -> 6
vsum([[1,2],[3,4]]) -> 10
- Author:
- Rich Morris
Created on 13-Feb-2005
Constructor Summary |
VSum()
|
Method Summary |
Dimensions |
calcDim(Dimensions ldim)
Find the dimensions of this operator when applied to arguments with given dimensions. |
MatrixValueI |
calcValue(MatrixValueI res,
MatrixValueI lhs)
Calculates the value of this operator for given input with results stored in res. |
void |
run(java.util.Stack s)
Throws an exception because this method should never be called under
normal circumstances. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
VSum
public VSum()
calcDim
public Dimensions calcDim(Dimensions ldim)
- Description copied from interface:
UnaryOperatorI
- Find the dimensions of this operator when applied to arguments with given dimensions.
- Specified by:
calcDim
in interface UnaryOperatorI
calcValue
public MatrixValueI calcValue(MatrixValueI res,
MatrixValueI lhs)
throws ParseException
- Description copied from interface:
UnaryOperatorI
- 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 UnaryOperatorI
- Throws:
ParseException
run
public void run(java.util.Stack s)
throws ParseException
- Description copied from class:
PostfixMathCommand
- Throws an exception because this method should never be called under
normal circumstances. Each function should use it's own run() method
for evaluating the function. This includes popping off the parameters
from the stack, and pushing the result back on the stack.
- Specified by:
run
in interface PostfixMathCommandI
- Overrides:
run
in class PostfixMathCommand
- Throws:
ParseException
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