Hi Ursula, just to mention: there isn't much framework in that ticket, it merely creates an IntegerLattice class and adds a few useful methods.
In particular, at the moment lattices over QQ (or RR) are not implemented, but I guess this could be added relatively quickly. Cheers, Martin On Wednesday 02 Apr 2014 14:40:10 Ursula wrote: > On Friday, March 21, 2014 7:40:09 AM UTC-5, Martin Albrecht wrote: > > Simon gave me some hints how to integrate the new class into the category > > framework, so the ticket now *needs review* hint hint: > > > > http://trac.sagemath.org/ticket/15976 > > Hi, all! > > I would like to be able to construct and manipulate elements of orthogonal > sums of root lattices (e.g., A_5 + E_8). Is Martin's ticket (above) the > best framework for doing this? Or is it possible to construct such an > object using the code for root systems that already exists in Sage? > > --Ursula. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
