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cscal.f

Section: LAPACK (3)
Updated: Fri Nov 4 2016
Index

NAME

cscal.f -

SYNOPSIS

Functions/Subroutines

subroutine CSCAL (N, CA, CX, INCX)
CSCAL

Function/Subroutine Documentation

subroutine CSCAL (integer N, complex CA, complex, dimension(*) CX, integer INCX)

CSCAL

Purpose:

    CSCAL 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, linpack,  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 cscal.f.

54 *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..--58 *     November 201159 *60 *     .. Scalar Arguments ..61       COMPLEX ca62       INTEGER incx,n63 *     ..64 *     .. Array Arguments ..65       COMPLEX cx(*)66 *     ..67 *68 *  =====================================================================69 *70 *     .. Local Scalars ..71       INTEGER i,nincx72 *     ..73       IF (n.LE.0 .OR. incx.LE.0) RETURN74       IF (incx.EQ.1) THEN75 *76 *        code for increment equal to 177 *78          DO i = 1,n79             cx(i) = ca*cx(i)80          END DO81       ELSE82 *83 *        code for increment not equal to 184 *85          nincx = n*incx86          DO i = 1,nincx,incx87             cx(i) = ca*cx(i)88          END DO89       END IF90       RETURN

Author

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Index

NAME

SYNOPSIS

Functions/Subroutines

Function/Subroutine Documentation

subroutine CSCAL (integer N, complex CA, complex, dimension(*) CX, integer INCX)

Author

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