Class MatrixList
- java.lang.Object
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- com.singularsys.jep.functions.PostfixMathCommand
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- com.singularsys.jep.functions.NaryFunction
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- com.singularsys.extensions.matrix.functions.MatrixList
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- All Implemented Interfaces:
MatrixFunctionI
,PostfixMathCommandI
,java.io.Serializable
public class MatrixList extends NaryFunction implements MatrixFunctionI
PostfixMathCommand which takes a number of objects on the stack and creates either a matrix or a vector.- 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 MatrixList(MatrixFactoryI mf)
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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.boolean
checkNumberOfParameters(int n)
Checks the number of parameters of the function.java.lang.Object
eval(java.lang.Object[] args)
Evaluate the functionvoid
run(java.util.Stack<java.lang.Object> stack)
Creates an array of object then callsNaryFunction.eval(Object[])
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Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString, toString
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Constructor Detail
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MatrixList
public MatrixList(MatrixFactoryI mf)
- Parameters:
mf
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Method Detail
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checkNumberOfParameters
public boolean checkNumberOfParameters(int n)
Description copied from class:PostfixMathCommand
Checks the number of parameters of the function. Functions which set numberOfParameter=-1 should overload this method- Specified by:
checkNumberOfParameters
in interfacePostfixMathCommandI
- Overrides:
checkNumberOfParameters
in classPostfixMathCommand
- Parameters:
n
- number of parameters function will be called with.- Returns:
- false if an illegal number of parameters is supplied, true otherwise.
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eval
public java.lang.Object eval(java.lang.Object[] args) throws EvaluationException
Description copied from class:NaryFunction
Evaluate the function- Specified by:
eval
in classNaryFunction
- Parameters:
args
- arguments to the function- Returns:
- value returned by the function
- Throws:
EvaluationException
- if the calculation cannot be performed
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run
public void run(java.util.Stack<java.lang.Object> stack) throws EvaluationException
Description copied from class:NaryFunction
Creates an array of object then callsNaryFunction.eval(Object[])
- Specified by:
run
in interfacePostfixMathCommandI
- Overrides:
run
in classNaryFunction
- Parameters:
stack
- arguments for function- Throws:
EvaluationException
- if function cannot be evaluated
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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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