Function

vDSP_zrvsubD(_:_:_:_:_:_:_:)

Subtracts a double-precision real vector from a double-precision complex vector.

Declaration

func vDSP_zrvsubD(_ __A: UnsafePointer<DSPDoubleSplitComplex>, _ __IA: vDSP_Stride, _ __B: UnsafePointer<Double>, _ __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 real 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 subtracts the first N real elements of B from corresponding complex elements of A, writing the result to C:

A diagram showing the operation of the vDSP_zrvsub 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] = A[n] - B[n];

See Also

Binary (Complex-Real) Subtraction Operations

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