Salut Nicolas, Merci, thanks a lot. This is very useful and of course, this saves me a lot of work.
Frederic On 3 nov, 18:40, "Nicolas M. Thiery" <nicolas.thi...@u-psud.fr> wrote: > On Wed, Nov 03, 2010 at 09:57:56AM -0700, Fr d ric Chapoton wrote: > > By the way, do you know if there is a way in Sage to try something on > > all posets of size 6, 7 or even 8 ? I think Stembridge has something > > like that in M*ple. I am tempted to try to convert his algorithm, but > > I would prefer to be sure that it does not exist yet. > > As far as I remember (but that might be a long time ago, in the Maple > posets package, the list of posets was hardcoded. > > In any cases: > > sage: Posets(8).cardinality() > 16999 > sage: For P in Posets(8): > ... > > And you can go as far as your machine can handle it (it's the same > machinery behind as for generating graphs up to an isomorphism). > > Cheers, > Nicolas > -- > Nicolas M. Thi ry "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-de...@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.
