Salut, the problem with CoxeterGroup(['H',3]) was that my gap3 installation does not work - I downloaded it again, but the problem is still the same:
Inside gap3, I get the following error (I know, this is not the right place to discuss this): gap> CoxeterGroup(['A',3]); Error, operations: power of list and integer is not defined at e := W.cartan ^ 0 ... in RootsAndMatgens( W.cartan ) called from CoxeterGroup( [ 'A', 3 ] ) called from main loop brk> This is why my sage cannot use my gap3... -- You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
