Math Vector Library
Programming Reference Manual C/C++
Version 1.0 DD-00002-010

14.3 vcsub - Vector complex subtraction x-y

#include <mvec.h>

void vcsub (int n, double complex *z, int incz, const double complex *x, int incx, const double complex *y, int incy);
void vcsubf(int n, float complex *z, int incz, const float complex *x, int incx, const float complex *y, int incy);

Given input vectors x  and y  and a result vector z  , this function computes

z= x-y

14.3.1 Parameters

N - INTEGER

ENTRY: Number of elements of x  , y  and z  .
CONSTRAINT: n ≥1  .

Z - ARRAY OF COMPLEX

EXIT: Result vector z  .
CONSTRAINT: Must contain n× incz  elements.
CONSTRAINT: Must not overlap with array x  or y  .

INCZ - INTEGER

ENTRY: Stride for the vector z  .
CONSTRAINT: incz> 0  .

X - ARRAY OF COMPLEX

ENTRY: Input vector x  .
CONSTRAINT: Must contain n× incx  elements.
CONSTRAINT: Must not overlap with array z  or y  .

INCX - INTEGER

ENTRY: Stride for the vector x  .
CONSTRAINT: incx> 0  .

Y - ARRAY OF COMPLEX

ENTRY: Input vector y  .
CONSTRAINT: Must contain n× incy  elements.
CONSTRAINT: Must not overlap with array z  or x  .

INCY - INTEGER

ENTRY: Stride for the vector y  .
CONSTRAINT: incy> 0  .