scal(3)                    Library Functions Manual                    scal(3)

NAME
       scal - scal: x = alpha x

SYNOPSIS
   Functions
       subroutine cscal (n, ca, cx, incx)
           CSCAL
       subroutine csscal (n, sa, cx, incx)
           CSSCAL
       subroutine dscal (n, da, dx, incx)
           DSCAL
       subroutine sscal (n, sa, sx, incx)
           SSCAL
       subroutine zdscal (n, da, zx, incx)
           ZDSCAL
       subroutine zscal (n, za, zx, incx)
           ZSCAL

Detailed Description
Function Documentation
   subroutine cscal (integer n, complex ca, complex, dimension(*) cx, integer
       incx)
       CSCAL

       Purpose:


               CSCAL scales a vector by a constant.

       Parameters
           N

                     N is INTEGER
                    number of elements in input vector(s)

           CA

                     CA is COMPLEX
                      On entry, CA specifies the scalar alpha.

           CX

                     CX is COMPLEX array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

           INCX

                     INCX is INTEGER
                    storage spacing between elements of CX

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       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 77 of file cscal.f.

   subroutine csscal (integer n, real sa, complex, dimension(*) cx, integer
       incx)
       CSSCAL

       Purpose:


               CSSCAL scales a complex vector by a real constant.

       Parameters
           N

                     N is INTEGER
                    number of elements in input vector(s)

           SA

                     SA is REAL
                      On entry, SA specifies the scalar alpha.

           CX

                     CX is COMPLEX array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

           INCX

                     INCX is INTEGER
                    storage spacing between elements of CX

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       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 77 of file csscal.f.

   subroutine dscal (integer n, double precision da, double precision,
       dimension(*) dx, integer incx)
       DSCAL

       Purpose:


               DSCAL scales a vector by a constant.
               uses unrolled loops for increment equal to 1.

       Parameters
           N

                     N is INTEGER
                    number of elements in input vector(s)

           DA

                     DA is DOUBLE PRECISION
                      On entry, DA specifies the scalar alpha.

           DX

                     DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

           INCX

                     INCX is INTEGER
                    storage spacing between elements of DX

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       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 78 of file dscal.f.

   subroutine sscal (integer n, real sa, real, dimension(*) sx, integer incx)
       SSCAL

       Purpose:


               SSCAL scales a vector by a constant.
               uses unrolled loops for increment equal to 1.

       Parameters
           N

                     N is INTEGER
                    number of elements in input vector(s)

           SA

                     SA is REAL
                      On entry, SA specifies the scalar alpha.

           SX

                     SX is REAL array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

           INCX

                     INCX is INTEGER
                    storage spacing between elements of SX

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       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 78 of file sscal.f.

   subroutine zdscal (integer n, double precision da, complex*16, dimension(*)
       zx, integer incx)
       ZDSCAL

       Purpose:


               ZDSCAL scales a vector by a constant.

       Parameters
           N

                     N is INTEGER
                    number of elements in input vector(s)

           DA

                     DA is DOUBLE PRECISION
                      On entry, DA specifies the scalar alpha.

           ZX

                     ZX is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

           INCX

                     INCX is INTEGER
                    storage spacing between elements of ZX

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       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 77 of file zdscal.f.

   subroutine zscal (integer n, complex*16 za, complex*16, dimension(*) zx,
       integer incx)
       ZSCAL

       Purpose:


               ZSCAL scales a vector by a constant.

       Parameters
           N

                     N is INTEGER
                    number of elements in input vector(s)

           ZA

                     ZA is COMPLEX*16
                      On entry, ZA specifies the scalar alpha.

           ZX

                     ZX is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCX ) )

           INCX

                     INCX is INTEGER
                    storage spacing between elements of ZX

       Author
           Univ. of Tennessee

           Univ. of California Berkeley

           Univ. of Colorado Denver

           NAG Ltd.

       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 77 of file zscal.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0                         scal(3)