Salut Frédéric,
On Wed, Feb 02, 2011 at 02:51:51AM -0800, Frédéric Chapoton wrote:
> I have found the following problem.
>
> sage: Set([len([v for v in mySet if v==u]) for u in mySet])
> {1, 2}
> sage: type(mySet)
> <class 'sage.sets.set.Set_object_enumerated_with_category'>
>
> So we have here a *set with repetitions*. This happens for a very
> specific set mySet which contains linear combinations of elements of a
> rather big poset.
>
> sage: type(mySet[0])
> <class
> 'sage.combinat.free_module.modules_sur_P_with_category.element_class'>
>
> Is there any known explanation for this bad behavior ?
If at all possible, please include a complete example that we can run
an analyze.
Amitiés,
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
--
You received this message because you are subscribed to the Google Groups
"sage-combinat-devel" group.
To post to this group, send email to sage-combinat-devel@googlegroups.com.
To unsubscribe from this group, send email to
sage-combinat-devel+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/sage-combinat-devel?hl=en.
