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Topic: can your CAS help proving inequalities?
Replies: 19   Last Post: Mar 11, 2013 12:00 PM

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Mate

Posts: 389
Registered: 8/15/05
Re: can your CAS help proving inequalities?
Posted: Mar 10, 2013 10:25 AM
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On Mar 10, 4:14 pm, A N Niel <ann...@nym.alias.net.invalid> wrote:
> In article
> <d9bfca96-93de-4b36-b139-c2a89d91c...@h17g2000yqe.googlegroups.com>,
>
> Mate <mmat...@personal.ro> wrote:
>

> > What about
> > solve({t*Zeta(1/2+I*t)=0, t>=0},t);
> > which returns
> > {t=0}

>
> You are right.  For non-polynomial equations, Maple "solve" just finds
> one solution, even if more exist.


Not only that. Even if we add AllSolutions=true, the answer is the
same.
The point is that we cannot trust any CAS (I think) for such problems.
(The method used could be just a probabilistic one, we don't know.)





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