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zvmul(3P)		    Sun Performance Library		     zvmul(3P)

NAME
       zvmul - compute the scaled product of complex vectors

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

       DOUBLE COMPLEX ALPHA, BETA
       DOUBLE COMPLEX X(*), Y(*), Z(*)
       INTEGER N, INCX, INCY, INCZ

       SUBROUTINE ZVMUL_64(N, ALPHA, X, INCX, Y, INCY, BETA, Z, INCZ)

       DOUBLE COMPLEX ALPHA, BETA
       DOUBLE COMPLEX X(*), Y(*), Z(*)
       INTEGER*8 N, INCX, INCY, INCZ

   F95 INTERFACE
       SUBROUTINE VMUL([N], ALPHA, X, [INCX], Y, [INCY], BETA, Z, [INCZ])

       COMPLEX(8) :: ALPHA, BETA
       COMPLEX(8), DIMENSION(:) :: X, Y, Z
       INTEGER :: N, INCX, INCY, INCZ

       SUBROUTINE VMUL_64([N], ALPHA, X, [INCX], Y, [INCY], BETA, Z, [INCZ])

       COMPLEX(8) :: ALPHA, BETA
       COMPLEX(8), DIMENSION(:) :: X, Y, Z
       INTEGER(8) :: N, INCX, INCY, INCZ

   C INTERFACE
       #include <sunperf.h>

       void  zvmul(int	n,  doublecomplex  *alpha, doublecomplex *x, int incx,
		 doublecomplex *y, int incy, doublecomplex  *beta,  doublecom‐
		 plex *z, int incz);

       void  zvmul_64(long  n,	doublecomplex  *alpha,	doublecomplex *x, long
		 incx, doublecomplex *y, long incy, doublecomplex *beta,  dou‐
		 blecomplex *z, long incz);

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

ARGUMENTS
       N (input)
		 Length	 of  the  vectors.  N >= 0.  ZVMUL will return immedi‐
		 ately if N = 0.

       ALPHA (input)
		 Scale factor on the multiplicand vectors.

       X (input)
		  dimension(*)
		 Multiplicand vector.

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

       Y (input)
		  dimension(*)
		 Multiplicand vector.

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

       BETA (input)
		 Scale factor on the product vector.

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

       INCZ (input)
		 Stride between elements of Z.

				  6 Mar 2009			     zvmul(3P)

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