TOpenCLVector.Difference Method

TOpenCLVector Class

Overload List

#SignatureDescription
1TOpenCLVector Difference(TOpenCLMtxVec Vec, Int32 Lag)The difference between two succesive vector elements.
2TOpenCLMtxVec Difference(TOpenCLMtxVec Vec, Int32 VecIndex, Int32 Index, Int32 Len)Difference.

Overload 1: TOpenCLVector Difference(TOpenCLMtxVec Vec, Int32 Lag)

The difference between two succesive vector elements.

#NameTypeDescription
1VecTOpenCLMtxVecsource TOpenCLVector or TOpenCLMatrix
2LagInt32

Returns: TOpenCLVector

Remarks:

Store the results in the calling vector. The Dew.Math.TOpenCLBase.Length of the calling vector is set to one less the length of Vec and Dew.Math.TOpenCLBase.Complex property is set to Vec.Complex. The following formula is used to calculate the difference:

The Length of calling vector is automatically decremented by one.

Overload 2: TOpenCLMtxVec Difference(TOpenCLMtxVec Vec, Int32 VecIndex, Int32 Index, Int32 Len)

Difference.

#NameTypeDescription
1VecTOpenCLMtxVecsource TOpenCLVector or TOpenCLMatrix
2VecIndexInt32
3IndexInt32start index
4LenInt32element count

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

Remarks:

Calculate the difference for Vec elements [VecIndex]..[VecIndex+Len-1] and store the results in the calling object elements [Index]..[Index+Len-1]. Size and Dew.Math.TOpenCLBase.Complex properties of the calling vector must be set explicitly. The following formula is used to calculate the difference:

Δ[k]=Vec[k+1]−Vec[k],0≤k<Vec.Length−1\Delta [k] = \text{Vec}[k+1] - \text{Vec}[k], \quad 0\leq k < \text{Vec.Length}-1

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