Am Mittwoch, den 04.08.2010, 12:53 -0700 schrieb Paul Bowyer:
> On 08/03/2010 01:43 AM, Dieter Kaiser wrote:
> > <snip>
> > Furthermore, the initial problem of sum(0^i, i, 0, n) -> 0 is not
> > solved. We will get again 0. Perhaps this happens because of a
> > simplification like 0^a-0^a --> 0.
> >
> > Dieter Kaiser
> I was re-reading your message this morning an it suddenly struck me that
> this might be incorrect. When I enter the following:
> ------------------------------
> kill(all)$
> n:4$
> sum(0^i, i, 0, n);
> ------------------------------
>
> I get this result:
> ------------------------------
> 0^0 has been generated
> -- an error. To debug this try: debugmode(true);
> ------------------------------
>
> So it seems you may have less difficulties than you indicate.
>
> I hope the helps a little,
It is not a problem to implement unsimplified 0^a expressions and to get
it to work with the testsuite of Maxima. The problem is, that we might
get unexpected and subtle problems at other places.
At this time I lost the original problem, which starts the discussion
about 0^a expressions. Please, could you give a link to the posting
which describes the original problem.
Dieter Kaiser