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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/BLAS/SRC/dscal.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/BLAS/SRC/dscal.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/BLAS/SRC/dscal.f

SYNOPSIS

Functions/Subroutines


subroutine DSCAL (n, da, dx, incx)
DSCAL

Function/Subroutine Documentation

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.

Author

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Version 3.12.0 LAPACK