Matrix.SetIt Method

Overload List

#	Signature	Description
1	function SetIt(Index: Integer; const A: TDoubleArray): TMtxVec;	Sets object values.
2	function SetIt(ARows: Integer; ACols: Integer; AComplex: Boolean; const A: TDoubleArray): TMtx;	Sets matrix values.
3	function SetIt(Index: Integer; AIndex: Integer; Len: Integer; const A: TDoubleArray): TMtxVec;	The elements of A array, starting at aIndex, are copied to the calling object elements, starting at Index.

Overload 1: function SetIt(Index: Integer; const A: TDoubleArray): TMtxVec;

Sets object values.

#	Name	Type	Description
1	Index	Integer	start index
2	A	TDoubleArray

Result: stored in self (calling object), returns self for chaining

Remarks:

Set object values. Method call does not change object's size or Matrix.Complex property, but it does check for array overrun. The elements of A array are copied to the calling object elements, starting at Index. If the calling object is complex, then real parts of complex numbers are on even (0,2,4..) and imaginary parts on odd indexes.(1,3,5,..).

Overload 2: function SetIt(ARows: Integer; ACols: Integer; AComplex: Boolean; const A: TDoubleArray): TMtx;

Sets matrix values.

#	Name	Type
1	ARows	Integer
2	ACols	Integer
3	AComplex	Boolean
4	A	TDoubleArray

Result: stored in self (calling object), returns self for chaining

Remarks:

Sets matrix values. This method gives you the possibility to pass large arrays of elements without having to declare constant arrays. Pass all elements in A array to the calling matrix. The Matrix.Rows and Matrix.Cols properties of the calling matrix are set to ARows and ACols and the Matrix.Complex property is set to AComplex. An exception is raised if the matrix size (ARows*ACols) does not match the number of complex numbers in A.

Examples

var  A: Matrix;
begin
    A.SetIt(2,2,False,[1,2,
        2,4]);
end;

See Also: Matrix.SetVal

Overload 3: function SetIt(Index: Integer; AIndex: Integer; Len: Integer; const A: TDoubleArray): TMtxVec;

The elements of A array, starting at aIndex, are copied to the calling object elements, starting at Index.

#	Name	Type	Description
1	Index	Integer	start index
2	AIndex	Integer	start index
3	Len	Integer	element count
4	A	TDoubleArray

Result: stored in self (calling object), returns self for chaining

Remarks:

If the calling object is complex, then real parts of complex numbers in the A array are on even (0,2,4..) and imaginary parts on odd indexes.(1,3,5,..).