TSparseMtx.Erf Method

Overload List

#	Signature	Description
1	function Erf: TMtxVec;	Error functon of values.
	└ indexed: function Erf(Index: Integer; Len: Integer): TMtxVec;
2	function Erf(const Src: TMtxVec): TMtxVec;	Calculates the error function for all Src object values.
	└ indexed: function Erf(const Src: TMtxVec; SrcIndex: Integer; Index: Integer; Len: Integer): TMtxVec;

Overload 1: function Erf: TMtxVec;

Error functon of values.

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

Remarks:

Calculates the error function for all object values in-place.

Examples

var
    a, expected: Matrix;
begin
    a := [[0.0, 0.5], [1.0, 2.0]];
    a.Erf;
    expected := [[0.0, 0.520499877813047], [0.842700792949715, 0.995322265018953]];
    if not a.IsEqual(expected, 1e-10, TCompare.cmpAbsolute) then
        raise Exception.Create('Matrix.Erf: mismatch');
end;

Indexed: function Erf(Index: Integer; Len: Integer): TMtxVec;

Calculates the error function for calling object elements [Index]..[Index+Len-1] in-place.

#	Name	Type	Description
1	Index	Integer	start index
2	Len	Integer	element count

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

Remarks:

An exception is raised if array borders are overrun or underrun.

Overload 2: function Erf(const Src: TMtxVec): TMtxVec;

Calculates the error function for all Src object values.

#	Name	Type	Description
1	Src	TMtxVec	source TVec or TMtx

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

Remarks:

Stores the result in calling object. Size and TMtxVec.Complex properties of calling object are adjusted automatically.

Examples

var
    a, x, expected: Matrix;
begin
    x := [[0.0, 0.5], [1.0, 2.0]];
    a.Erf(x);
    expected := [[0.0, 0.520499877813047], [0.842700792949715, 0.995322265018953]];
    if not a.IsEqual(expected, 1e-10, TCompare.cmpAbsolute) then
        raise Exception.Create('Matrix.Erf: mismatch');
end;

Indexed: function Erf(const Src: TMtxVec; SrcIndex: Integer; Index: Integer; Len: Integer): TMtxVec;

Calculates the error function for Src object elements [SrcIndex]..[SrcIndex+Len-1].

#	Name	Type	Description
1	Src	TMtxVec	source TVec or TMtx
2	SrcIndex	Integer	source start index
3	Index	Integer	start index
4	Len	Integer	element count

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

Remarks:

Stores the result in calling object elements [Index]..[Index+Len-1]. An exception is raised if array borders are overrun or underrun.