clVector.LogN Method

Overload List

#SignatureDescription
1function LogN(N: Double): TOpenCLMtxVec;Log base N.
└ indexed: function LogN(N: Double; Index: Integer; Len: Integer): TOpenCLMtxVec;
2function LogN(N: Double; X: TOpenCLMtxVec): TOpenCLMtxVec;Calculate the log base N of all X object elements.
└ indexed: function LogN(N: Double; X: TOpenCLMtxVec; XIndex: Integer; Index: Integer; Len: Integer): TOpenCLMtxVec;

Overload 1: function LogN(N: Double): TOpenCLMtxVec;

Log base N.

#NameTypeDescription
1NDoublescalar

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

Returns: Log base N for all calling object elements in-place.

Examples
var a: clVector;
begin
    a.CopyFromArray(TSingleArray.Create(1,2,3,4)); // a = [1,2,3,4]
    a.LogN(10.0);  // log base 10, the slow way a = [Log10(1), Log10(2),...]
end;
See Also: clVector.Power

Indexed: function LogN(N: Double; Index: Integer; Len: Integer): TOpenCLMtxVec;

Calculate the log base N of calling object elements [Index]..[Index+Len-1] in-place.

#NameTypeDescription
1NDoublescalar
2IndexIntegerstart index
3LenIntegerelement count

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

Remarks:

An exception is raised if array borders are overrun.

Overload 2: function LogN(N: Double; X: TOpenCLMtxVec): TOpenCLMtxVec;

Calculate the log base N of all X object elements.

#NameTypeDescription
1NDoublescalar
2XTOpenCLMtxVecsource TOpenCLVector or TOpenCLMatrix

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

Remarks:

Store the results in calling object. Size and clVector.Complex properties of the calling object are adjusted automatically.

Indexed: function LogN(N: Double; X: TOpenCLMtxVec; XIndex: Integer; Index: Integer; Len: Integer): TOpenCLMtxVec;

Calculate the log base N of X object elements [XIndex]..[XIndex+Len-1].

#NameTypeDescription
1NDoublescalar
2XTOpenCLMtxVecsource TOpenCLVector or TOpenCLMatrix
3XIndexIntegerX start index
4IndexIntegerstart index
5LenIntegerelement count

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

Remarks:

The results are stored in calling object elements [Index]..[Index+Len-1]. Size and clVector.Complex properties of the calling object are not changed. An exception is raised if array borders are overrun.