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NAME
     dzasum - Return the sum of the absolute values of  a  vector
     x.

SYNOPSIS
     DOUBLE PRECISION FUNCTION DZASUM (N, X, INCX)

     INTEGER INCX, N

     COMPLEX*16 X( * )



     #include <sunperf.h>

     double dzasum(int n, doublecomplex *zx, int incx) ;

PURPOSE
     DZASUM - Return the sum of the absolute values of  the  ele-
     ments  of  x where x is an n-vector.  This is the sum of the
     absolute values of the real and complex elements and not the
     sum of the squares of the real and complex elements.


PARAMETERS
     N         - INTEGER.
               On entry, N specifies the number  of  elements  in
               the  vector.   N must be at least one for the sub-
               routine to have any visible effect.  Unchanged  on
               exit.

     X         - COMPLEX*16 array of DIMENSION at least
               ( 1 + ( m - 1 )*abs( INCY  )  ).   On  entry,  the
               incremented  array X must contain the vector x. On
               exit, X is overwritten by the updated vector x.

     INCX      - INTEGER.
               On entry, INCX specifies  the  increment  for  the
               elements  of  X. INCX must not be zero.  Unchanged
               on exit.

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