DZSUM1(3)                  MathKeisan LAPACK routine                 DZSUM1(3)



NAME
       DZSUM1 - the sum of the absolute values of a complex vector and returns
       a double precision result

SYNOPSIS
       DOUBLE PRECISION FUNCTION DZSUM1( N, CX, INCX )

           INTEGER      INCX, N

           COMPLEX*16   CX( * )

PURPOSE
       DZSUM1 takes the sum of the absolute values of  a  complex  vector  and
       returns a double precision result.

       Based on DZASUM from the Level 1 BLAS.
       The change is to use the 'genuine' absolute value.

       Contributed by Nick Higham for use with ZLACON.


ARGUMENTS
       N       (input) INTEGER
               The number of elements in the vector CX.

       CX      (input) COMPLEX*16 array, dimension (N)
               The vector whose elements will be summed.

       INCX    (input) INTEGER
               The spacing between successive values of CX.  INCX > 0.



 LAPACK auxiliary routine (versionNo3v.e1m)ber 2006                       DZSUM1(3)