--- Martin RUBEY <rubey@labri.fr> wrote:
>
> Finally, I'd like to ask why simpsum does not call the Gosper
> algorithm (nusum)? I guess that simpsum is only called on demand,
when
> the user REALLY wants to have a simple answer and believes that there
> is one? And as far as I know, Zeilberger (and for multiple sums
> Wegschaider) is at the moment the most powerful algorithm.
>
> So, put in another way: does it make sense to maintain the simpsum
> code if there are more powerful algorithms available?
Well I don't know about the technical details (Richard?) but as far as
Zeilberger is concerned if I'm right in thinking you're talking about
Fabrizio Caruso's work his code is not licensed in such a way that
would allow us to include it with Maxima. See
http://www.risc.uni-linz.ac.at/research/combinat/risc/software/Zeilberger/
for details.
CY
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