dasum()

double precision function dasum	(	integer	n,
		double precision, dimension(*)	dx,
		integer	incx
	)

DASUM

Purpose:

    DASUM takes the sum of the absolute values.

Parameters

[in]	N	N is INTEGER number of elements in input vector(s)
[in]	DX	DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
[in]	INCX	INCX is INTEGER storage spacing between elements of DX

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Further Details:

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