Source module last modified on Thu, 2 Jul 1998, 23:17;
HTML image of Fortran source automatically generated by
for2html on Sun, 23 Jun 2002, 15:10.
double precision function dzasum(n,zx,incx)
#
# takes the sum of the absolute values.
# jack dongarra, 3/11/78.
# modified 3/93 to return if incx .le. 0.
# modified 12/3/93, array(1) declarations changed to array(*)
#
double complex zx(*)
double precision stemp,dcabs1
integer i,incx,ix,n
#
dzasum = 0.0d0
stemp = 0.0d0
if( n<=0 || incx<=0 )return
if(incx==1)go to 20
#
# code for increment not equal to 1
#
ix = 1
do 10 i = 1,n
stemp = stemp + dcabs1(zx(ix))
ix = ix + incx
10 continue
dzasum = stemp
return
#
# code for increment equal to 1
#
20 do 30 i = 1,n
stemp = stemp + dcabs1(zx(i))
30 continue
dzasum = stemp
return
end