Martin Rubey answered but it seems that he does not have access to the list, so I transfer the mail as he wish.
---------- Message transféré ---------- De : <ru...@math.uni-hannover.de> Date : 14 février 2013 04:28 Objet : Fwd: Re: [sage-combinat-devel] series vs series À : Vincent Delecroix <20100.delecr...@gmail.com> Il semble que j'ai pas de permit pour envoyer a sage-combinat-devel. Could you please forward? Merci beaucoup, Martin ---------- Message transféré ---------- From: ru...@math.uni-hannover.de To: sage-combinat-devel@googlegroups.com Cc: Date: Thu, 14 Feb 2013 08:55:02 +0100 Subject: Re: [sage-combinat-devel] series vs series Zitat von Vincent Delecroix <20100.delecr...@gmail.com>: > Dear all, > > I am working on #10193 and would like to implement a default method > for generating series of a graded set. So I need series and I found > the following in Sage > * sage.rings.power_series_poly > * sage.combinat.species.series > the first one does not work for (lazy) infinite series and this is why > the second is that useful. The second does not work with > multiplication by polynomials ! And I am trapped. > > Does anybody have work on that and may have advices or hints ? You can use the latter by converting first the polynomial (monomial by monomial) into a series using the method "term" and then multiply. (You even have to do that with constants, in particular "-1"!) Yes, that's a nuisance, but it works. Martin -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-combinat-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-combinat-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
