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zcopy examples
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Man Page Details
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NAME
       ZCOPY  -  BLAS  level  one, copies a double complex vector into another
       double complex vector

SYNOPSIS
       SUBROUTINE ZCOPY    ( n, x, incx, y, incy )

           INTEGER           n, incx, incy

           DOUBLE COMPLEX    x, y


DESCRIPTION
       ZCOPY copies a double complex vector into another double  complex  vec-
       tor.   ZCOPY  copies  a vector x, whose length is n to a vector y. incx
       and incy specify the increment  between  two  consecutive  elements  of
       respectively vector x and y.

       This routine performs the following vector operation:

            y  <--  x

       where x and y are double complex vectors.

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

       x       DOUBLE COMPLEX, (input)
               Vector from which to copy.

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

       y       DOUBLE COMPLEX, (output)
               array of dimension (n-1) * |incy| + 1, result vector.

       incy    INTEGER. (input)
               Increment between elements of y.  If incy = 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)

            y(1-incy * (n-1)), y(1-incy * (n-2)), ..., y(1)

