On May 1, 3:15 am, bill purvis <[EMAIL PROTECTED]> wrote:
> On Thursday 01 May 2008, Dan Drake wrote:
>
> > On Wed, 30 Apr 2008 at 09:10AM -0700, bill.p wrote:
> > > > My present thought is that I'd need a list of integers plus another
> > > > integer - the integer could either be the number of non-recurring
> > > > terms, or it could be the number of recurring terms. Given the way
> > > > that Python handles negative indices I guess the second option could
> > > > amount to the same thing by making it negative. Again, feedback
> > > > welcomed.
>
> > > > Bill
>
> > > Hmmm, I'll take that as 'No Interest' then....
>
> > I haven't been following this carefully, but I'd like to see a format
> > for quadratic irrationals that is along the same lines as Mathematica:
>
> > ContinuedFraction[Sqrt[15]]
>
> > yields
>
> > {3, {1, 6}}.
>
> > The first entry is the integer part, and after that, we'd have a tuple
> > or list that gives you the periodic stuff. Rational numbers would be
> > just a list of integers:
>
> > {3, 7, 15, 1, 292, 1, 1, 1, 2, 1}
>
> > It would also be nice if you could do symbolic expressions as entries in
> > the list.
>
> > Dan
>
> Thanks for the suggestion. That means I can handle the existing stuff as
> a special case (no sublists).
>
> I've not been able to afford a copy of Mathmatica (impoverished, retired,
> software engineer) so I was unaware
> of what it provided.
>
> If anyone can supply more info on what Mathmatica can do in this area
> it would be appreciated....
The Mathematica documentation is available online; for example, the
documentation for ContinuedFraction is at
http://reference.wolfram.com/mathematica/ref/ContinuedFraction.html
Carl
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