CSCAL(3)        BLAS routine of NEC Numeric Library Collection        CSCAL(3)



NAME
       CSCAL - BLAS level one, Scales a complex vector

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

           INTEGER           n, incx

           COMPLEX           x, alpha


DESCRIPTION
       CSCAL  scales a complex vector with a complex scalar.  CSCAL scales the
       vector x of length n and increment incx by the constant alpha.

       Ths routine performs the following vector operation:

                 x <-- alpha x

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

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

       alpha   COMPLEX. (input)
               Value used to scale vector

       x       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
       This  routine  is  Level  1  Basic  Linear Algebra Subprograms (Level 1
       BLAS).

       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)



BLAS routine                                                          CSCAL(3)