My own accounting python euler problem

[Gerry]

On Nov 8, 2:42 pm, Ozz <notva... at wathever.com> wrote:
> vsoler schreef:
>
And, of course, you'd want to take a look a this:  http://xkcd.com/287/

Gerry
>
> > Instead of subsets, do you mean permutations/combinations?  Since 2
> > invoices can have the same amount perhaps the terms permutation is
> > better.
>
> As some other poster already suggested 'powerset' (http://en.wikipedia.org/wiki/Power_set) may be a better name, except
> for those duplicates, of course. On the other hand, I think viewing it
> as a powerset is the most 'natural' in this case. (imo permutations are
> about the order of objects, not about whether the objects are included
> in a set or not)
>
> cheers,
> Ozz