Function

vDSP_zvcmulD(_:_:_:_:_:_:_:)

Multiplies a double-precision complex vector by the conjugate of another double-precision complex vector.

Declaration

func vDSP_zvcmulD(_ __A: UnsafePointer<DSPDoubleSplitComplex>, _ __IA: vDSP_Stride, _ __B: UnsafePointer<DSPDoubleSplitComplex>, _ __IB: vDSP_Stride, _ __C: UnsafePointer<DSPDoubleSplitComplex>, _ __iC: vDSP_Stride, _ __N: vDSP_Length)

Parameters

__A: Double-precision complex input vector.
__IA: Stride for A.
__B: Double-precision complex input vector.
__IB: Stride for B.
__C: Double-precision complex output vector.
__IC: Stride for C.
__N: The number of elements to process.

Discussion

This function calculates the products of the first N complex conjugates of A by the corresponding complex elements of B, writing the result to C:

A diagram showing the operation of the vDSP_zvcmul function. There are three rows. The top row represents the first input, vector A. The second row represents the second input, vector B. The bottom row represents the output, vector C. The diagram has connecting lines from the input vectors to the output vector indicating the relationships between the inputs and output.

The operation is:

 for (n = 0; n < N; ++n)
    C[n] = conj(A[n]) * B[n];

vDSP_zvcmulD(_:_:_:_:_:_:_:)

Declaration

Parameters

Discussion

See Also

Binary Conjugate-Multiply Operations