dzasum()

double precision function dzasum	(	integer	n,
		complex*16, dimension(*)	zx,
		integer	incx
	)

DZASUM

Purpose:

    DZASUM takes the sum of the (|Re(.)| + |Im(.)|)'s of a complex vector and
    returns a double precision result.

Parameters

[in]	N	N is INTEGER number of elements in input vector(s)
[in,out]	ZX	ZX is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
[in]	INCX	INCX is INTEGER storage spacing between elements of ZX

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Further Details:

     jack dongarra, 3/11/78.
     modified 3/93 to return if incx .le. 0.
     modified 12/3/93, array(1) declarations changed to array(*)