On Tue, Mar 05, 2013 at 03:11:00AM -0800, tom d wrote:
> I think longest_element is fine;
Ok for me, unless someone finds something better.
> long_word indicates that there will be a word returned instead of
> an element, which is maybe not what we're after here.
+1
Thanks Kannappan for your work on this! By the way: would you mind
using the occasion to move this method to the CoxeterGroups category?
Of course, calling "W.longest_element()" for an infinite coxeter group
W is not a wise thing to do; but we recently had the need for
computing longest elements for finite parabolic subgroups and
``W.longest_element(I)`` would have been useful. Ideally there would
be a warning or error if called without argument or on an infinite
parabolic subgroup, but that might be tricky to detect.
Cheers,
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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