TVec.LogN Method

Overload List

#SignatureDescription
1TMtxVec LogN(Double N)Log base N.
└ indexed: TMtxVec LogN(Double N, Int32 Index, Int32 Len)
2TMtxVec LogN(Double N, TMtxVec X)Calculate the log base N of all X object elements.
└ indexed: TMtxVec LogN(Double N, TMtxVec X, Int32 XIndex, Int32 Index, Int32 Len)

Overload 1: TMtxVec LogN(Double N)

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
Vector a;
a.SetIt(false,new double[] {1,2,3,4}); // a = new double[] {1,2,3,4}
a.LogN(10.0);  // log base 10, the slow way a = [Log10(1), Log10(2),...]

Indexed: TMtxVec LogN(Double N, Int32 Index, Int32 Len)

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

#NameTypeDescription
1NDoublescalar
2IndexInt32start index
3LenInt32element count

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

Remarks:

An exception is raised if array borders are overrun.

Overload 2: TMtxVec LogN(Double N, TMtxVec X)

Calculate the log base N of all X object elements.

#NameTypeDescription
1NDoublescalar
2XTMtxVecsource TVec or TMtx

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

Remarks:

Store the results in calling object. Size and Dew.Math.TMtxVec.Complex properties of the calling object are adjusted automatically.

Indexed: TMtxVec LogN(Double N, TMtxVec X, Int32 XIndex, Int32 Index, Int32 Len)

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

#NameTypeDescription
1NDoublescalar
2XTMtxVecsource TVec or TMtx
3XIndexInt32X start index
4IndexInt32start index
5LenInt32element 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 Dew.Math.TMtxVec.Complex properties of the calling object are not changed. An exception is raised if array borders are overrun.