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NAME
     cvmul - compute the scaled product of complex vectors

     SUBROUTINE CVMUL(N, ALPHA, X, INCX, Y, INCY, BETA, Z, INCZ)

     INTEGER N, INCX, INCY, INCZ

     COMPLEX ALPHA, BETA, X(*), Y(*), Z(*)



     #include <sunperf.h>

     void cvmul(int n, complex *alpha, complex *x, int incx, com-
               plex  *y, int incy, complex *beta, complex *z, int
               incz) ;

PURPOSE
     CVMUL computes the scaled product of complex vectors:
       z(i) = ALPHA * x(i) * y(i) + BETA * z(i)
     for 1 <= i <= N.

ARGUMENTS
     N         (input) INTEGER
               Length of the vectors.  N >= 0.  CVMUL will return
               immediately if N = 0.

     ALPHA     (input) COMPLEX
               Scale factor on the multiplicand vectors.

     X         (input) COMPLEX(*)
               Multiplicand vector.

     INCX      (input) INTEGER
               Stride between elements of the multiplicand vector
               X.  INCX > 0.

     Y         (input) COMPLEX(*)
               Multiplicand vector.

     INCY      (input) INTEGER
               Stride between elements of the multiplicand vector
               Y.  INCY > 0.

     BETA      (input) COMPLEX
               Scale factor on the product vector.

     Z         (output) COMPLEX(*)
               Product vector.  On exit, z(i) = ALPHA  *  x(i)  *
               y(i) + BETA * z(i).

     INCZ      (input) INTEGER
               Stride between elements of Z.  INCZ > 0.

Партнёры:

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