LAPACK  3.6.0
LAPACK: Linear Algebra PACKage

§ dasum()

double precision function dasum ( integer  N,
double precision, dimension(*)  DX,
integer  INCX 
)

DASUM

Purpose:
    DASUM takes the sum of the absolute values.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
November 2011
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(*)