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Posted to dev@commons.apache.org by "Mark R. Diggory" <md...@latte.harvard.edu> on 2003/12/10 16:22:07 UTC
Re: [Math]: Jakarta commons Math package - code submission
Good idea,
I think we could look into initially adding it in the experimental
section. We should review the commons collections capabilities and see
if there are pre-existing Iterators or Decorators that this could
utilize to improve its performance.
-Mark
Marcin Jekot wrote:
> Hi,
> sorry for not posting this to the mailing list, but I am not
> subscribed to the commons mailing list (is it high volume?).
>
> I have a class which allows you to do combinatorics (permutations and
> combinations) using java collections framework. So you pass in a List of
> objects, and you get back a List of Lists, of all the possible
> combinations or permutations.
>
> I have not even looked at all the available functionality in your source
> tree, but looking at the api docs I couldn't find anything similar. Is
> this something you'd be interested in?
>
> I could refactor the code to fit your package structure, and send it to
> you including JUnit tests. It's not fast (uses recursive method calls)
> but it's a start at least, which adds the functionality for starters,
> and can always be re-implemented better later on.
>
> Look forward to hearing from you.
>
> Regards
> -Marcin Jekot
>
--
Mark Diggory
Software Developer
Harvard MIT Data Center
http://osprey.hmdc.harvard.edu
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