3 * =========== DOCUMENTATION ===========
5 * Online html documentation available at
6 * http://www.netlib.org/lapack/explore-html/
11 * SUBROUTINE CSSCAL(N,SA,CX,INCX)
13 * .. Scalar Arguments ..
17 * .. Array Arguments ..
27 *> CSSCAL scales a complex vector by a real constant.
33 *> \author Univ. of Tennessee
34 *> \author Univ. of California Berkeley
35 *> \author Univ. of Colorado Denver
38 *> \date November 2011
40 *> \ingroup complex_blas_level1
42 *> \par Further Details:
43 * =====================
47 *> jack dongarra, linpack, 3/11/78.
48 *> modified 3/93 to return if incx .le. 0.
49 *> modified 12/3/93, array(1) declarations changed to array(*)
52 * =====================================================================
53 SUBROUTINE CSSCAL(N,SA,CX,INCX)
55 * -- Reference BLAS level1 routine (version 3.4.0) --
56 * -- Reference BLAS is a software package provided by Univ. of Tennessee, --
57 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
60 * .. Scalar Arguments ..
64 * .. Array Arguments ..
68 * =====================================================================
73 * .. Intrinsic Functions ..
74 INTRINSIC AIMAG,CMPLX,REAL
76 IF (N.LE.0 .OR. INCX.LE.0) RETURN
79 * code for increment equal to 1
82 CX(I) = CMPLX(SA*REAL(CX(I)),SA*AIMAG(CX(I)))
86 * code for increment not equal to 1
90 CX(I) = CMPLX(SA*REAL(CX(I)),SA*AIMAG(CX(I)))