Hi!
There is quite some support for this:
sage: W = WeylGroup(A3, prefix = s)
sage: [s1,s2,s3] = W.simple_reflections()
sage: G = W.bruhat_graph(s1*s3,s1*s2*s3*s2*s1)
sage: G.plot()
You can get even nicer pictures using dot2tex:
sage: D =
Hi --
someone is asking for software to draw intervals in Weyl groups, see
http://mathoverflow.net/questions/98477/software-for-drawing-intervals-in-weyl-groups
.
Maybe someone can get him a satisfactory answer (and point him to
sage.lacim.uqam.ca to get all sage-combinat features).
Moreover, I
