KTH framework for Nek5000 toolboxes; testing version  0.0.1
dzasum.f
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1  double precision function dzasum(n,zx,incx)
2 c
3 c takes the sum of the absolute values.
4 c jack dongarra, 3/11/78.
5 c modified 3/93 to return if incx .le. 0.
6 c modified 12/3/93, array(1) declarations changed to array(*)
7 c
8  double complex zx(*)
9  double precision stemp,dcabs1
10  integer i,incx,ix,n
11 c
12  dzasum = 0.0d0
13  stemp = 0.0d0
14  if( n.le.0 .or. incx.le.0 )return
15  if(incx.eq.1)go to 20
16 c
17 c code for increment not equal to 1
18 c
19  ix = 1
20  do 10 i = 1,n
21  stemp = stemp + dcabs1(zx(ix))
22  ix = ix + incx
23  10 continue
24  dzasum = stemp
25  return
26 c
27 c code for increment equal to 1
28 c
29  20 do 30 i = 1,n
30  stemp = stemp + dcabs1(zx(i))
31  30 continue
32  dzasum = stemp
33  return
34  end
dcabs1
double precision function dcabs1(z)
Definition: dcabs1.f:2
dzasum
double precision function dzasum(n, zx, incx)
Definition: dzasum.f:2