GetDiagonal

java.lang.Object
- org.nfunk.jep.function.PostfixMathCommand
- - org.lsmp.djep.vectorJep.function.GetDiagonal

All Implemented Interfaces:

Serializable, UnaryOperatorI, PostfixMathCommandI
```
public class GetDiagonal
extends PostfixMathCommand
implements UnaryOperatorI
```
Extracts diagonal from a square matrix. getDiag([[1,0,0],[0,2,0],[0,0,3]]) -> [1,2,3]

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

GetDiagonal()

Constructors
Constructor and Description
`GetDiagonal()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`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(Stack s)` Throws an exception because this method should never be called under normal circumstances.

Methods inherited from class org.nfunk.jep.function.PostfixMathCommand
checkNumberOfParameters, getNumberOfParameters, setCurNumberOfParameters

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.nfunk.jep.function.PostfixMathCommandI
checkNumberOfParameters, getNumberOfParameters, setCurNumberOfParameters

- Constructor Detail
  - GetDiagonal
```
public GetDiagonal()
```
- Method Detail
  - 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(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

Class GetDiagonal

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

Methods inherited from interface org.nfunk.jep.function.PostfixMathCommandI

Constructor Detail

GetDiagonal

Method Detail

calcDim

calcValue

run