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zscal examples
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Man Page Details
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NAME
       ZSCAL - BLAS level one, Scales a double complex vector

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

           INTEGER            n, incx

           DOUBLE COMPLEX     x, alpha


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

       This routine performs the following vector operation:

                 x <-- alpha x

       where alpha is a double complex scalar, and x is a double complex
       vector.

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

       alpha   DOUBLE COMPLEX. (input)
               Value used to scale vector

       x       DOUBLE COMPLEX. (input and output)
               Array  of dimension (n-1) * abs(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)

