I'm forwarding to the sage-combinat group, where the people who know this code well have a better chance of seeing it.
On 05/12/2011 06:19 PM, Matthias wrote: > Hi, > > i don't really know whether this is a bug, but at least it seems a bit > odd to me (are alphacheck supposed to have different meanings in the > spaces?): > > R = RootSystem(['A',3]) > wgtsp = R.weight_space() > rootsp = R.root_space() > > a = wgtsp.simple_roots()[1] > b = rootsp.simple_roots()[1] > > a.associated_coroot() >>> 4/5*alphacheck[1] - 2/5*alphacheck[2] > b.associated_coroot() >>> alphacheck[1] > > In general is there a way to specify a basis of a ?free module? > (whatever is behind the spaces) and make sage express everything in > this basis? > > Best regards > Matthias > -- 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.
