yes. it is. so, is that the reason?
I try to solve Min Bandwidth problem.
min B
s.t. B>= Tu-Tv, (u,v) in E.
sum{u in V} Tu = n(n+1)/2
sum{u in S} Tu = |S|(|S|+1)/2, S contained by V, S is not empty.
I don't know how to handle S, a subset of V.
can anybody help?
On 3/20/07, Michael Hennebry <[EMAIL PROTECTED]> wrote:
On Tue, 20 Mar 2007, Shan Gao wrote:
> I am trying to use prod to calculate the production of numbers stored in
an
> array x.
>
> I wrote: prod {i in 1..5} x[i]; // same format with sum
>
> but I was told "integrand following prod{...} has invalid type".
By any chance, is x an array of variables?
--
Mike [EMAIL PROTECTED]
"Finally, mount the partition, not the virgin." -- Charles Curley
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