subroutine zscal	(	integer	N,
		complex*16	ZA,
		complex*16, dimension(*)	ZX,
		integer	INCX
	)

ZSCAL

Purpose:

    ZSCAL scales a vector by a constant.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date

November 2011

Further Details:

     jack dongarra, 3/11/78.
     modified 3/93 to return if incx .le. 0.
     modified 12/3/93, array(1) declarations changed to array(*)

Definition at line 54 of file zscal.f.

*
*  -- Reference BLAS level1 routine (version 3.4.0) --
*  -- Reference BLAS is a software package provided by Univ. of Tennessee,    --
*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
*     November 2011
*
*     .. Scalar Arguments ..
      COMPLEX*16 za
      INTEGER incx,n
*     ..
*     .. Array Arguments ..
      COMPLEX*16 zx(*)
*     ..
*
*  =====================================================================
*
*     .. Local Scalars ..
      INTEGER i,nincx
*     ..
      IF (n.LE.0 .OR. incx.LE.0) RETURN
      IF (incx.EQ.1) THEN
*
*        code for increment equal to 1
*
         DO i = 1,n
            zx(i) = za*zx(i)
         END DO
      ELSE
*
*        code for increment not equal to 1
*
         nincx = n*incx
         DO i = 1,nincx,incx
            zx(i) = za*zx(i)
         END DO
      END IF
      RETURN