Class MatrixSize
- java.lang.Object
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- com.singularsys.jep.functions.PostfixMathCommand
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- com.singularsys.jep.functions.UnaryFunction
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- com.singularsys.extensions.matrix.functions.MatrixSize
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- All Implemented Interfaces:
MatrixFunctionI
,PostfixMathCommandI
,java.io.Serializable
public class MatrixSize extends UnaryFunction implements MatrixFunctionI
Returns the size of an Scaler, Vector or Matrix.size(7) -> 1 size([1,2,3]) -> 3 size([[1,2,3],[4,5,6]]) -> [2,3]
- Author:
- Rich Morris Created on 13-Feb-2005
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand
curNumberOfParameters, name, NaN, numberOfParameters
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Constructor Summary
Constructors Constructor Description MatrixSize(MatrixFactoryI mfact, IntegerConvertor conv)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Dimensions
calcDims(Dimensions... inDims)
Attempts to calculate the dimensions of a result of a PostfixMathCommand.java.lang.Object
eval(java.lang.Object arg)
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Methods inherited from class com.singularsys.jep.functions.UnaryFunction
instanceOf, instanceOf, run
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Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString, toString
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Constructor Detail
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MatrixSize
public MatrixSize(MatrixFactoryI mfact, IntegerConvertor conv)
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Method Detail
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eval
public java.lang.Object eval(java.lang.Object arg) throws EvaluationException
- Specified by:
eval
in classUnaryFunction
- Throws:
EvaluationException
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calcDims
public Dimensions calcDims(Dimensions... inDims) throws ParseException
Description copied from interface:MatrixFunctionI
Attempts to calculate the dimensions of a result of a PostfixMathCommand.- Specified by:
calcDims
in interfaceMatrixFunctionI
- Parameters:
inDims
- the dimensions of each argument- Returns:
- the dimension of the result or null if can be calculated
- Throws:
ParseException
- if there is a parse error
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