====================================================================
dscal examples
====================================================================

====================================================================
Man Page Details
====================================================================

NAME
       DSCAL - BLAS level one, scales a double precision vector

SYNOPSIS
       SUBROUTINE DSCAL    ( n, alpha, x, incx )

           INTEGER           n, incx

           DOUBLE PRECISION  alpha, x


DESCRIPTION
       DSCAL  scales a double precision vector with a double precision scalar.
       DSCAL scales the vector x of length n and increment incx  by  the  con-
       stant a.

       This routine performs the following vector operation:

                 x <-- alpha x

       where alpha is a double precisoin scalar, and x is a double precision
       vector.

ARGUMENTS
       n       INTEGER. (input)
               Number of elements in the vector.
               If n <= 0, this routine returns without computation.

       alpha   DOUBLE PRECISION scalar alpha. (input)

       x       DOUBLE PRECISION, (input and output)
               Array of dimension (n-1) * |incx| + 1. Vector to be scaled.

       incx    INTEGER. (input)
               Increment between elements of x.
               If incx = 0, the results will be unpredictable.

NOTES
       When working backward (incx < 0 or incy < 0), each  routine  starts  at
       the end of the vector and moves backward, as follows:

            x(1-incx * (n-1)), x(1-incx * (n-2)), ..., x(1)

