NAME
caxpy - Compute y := alpha * x + y
SYNOPSIS
SUBROUTINE CAXPY (N, ALPHA, X, INCY, Y, INCY )
COMPLEX ALPHA
INTEGER INCX, INCY, N
COMPLEX X( * ), Y( * )
#include <sunperf.h>
void caxpy (int n, complex *za, complex *zx, int incx, com-
plex *zy, int incy);
PURPOSE
CAXPY - Compute y := alpha * x + y where alpha is a scalar
and x and y are n-vectors.
PARAMETERS
N - INTEGER.
On entry, N specifies the number of elements in
the vector. N must be at least one for the sub-
routine to have any visible effect. Unchanged on
exit.
ALPHA - COMPLEX.
On entry, ALPHA specifies the scalar alpha.
Unchanged on exit.
X - COMPLEX
array of DIMENSION at least ( 1 + ( n - 1 )*abs(
INCX ) ). Before entry, the incremented array X
must contain the vector x. Unchanged on exit.
INCX - INTEGER.
On entry, INCX specifies the increment for the
elements of X. INCX must not be zero. Unchanged
on exit.
Y - COMPLEX
array of DIMENSION at least ( 1 + ( m - 1 )*abs(
INCY ) ). On entry, the incremented array Y must
contain the vector y. On exit, Y is overwritten by
the updated vector y.
INCY - INTEGER.
On entry, INCY specifies the increment for the
elements of Y. INCY must not be zero. Unchanged
on exit.
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