> Does this help? > > sage: K = CyclotomicField(12) # 12 = 4*3 > sage: K.gens() > (zeta12,) > sage: z = K.gens()[0] > sage: z > zeta12 > sage: E3 = z^4 > sage: E4 = z^3 > sage: gens = [ matrix( K, 2, [ E3, 0, 0, E4 ] ), matrix( K, 2, [ -E3, > 0, 0, -1 ] ) ] > sage: G = MatrixGroup( gens ) > sage: G.order() > 24
Showing this group G also returns an error - but computing with it seems to work anyway. I will have a closer look at the code for matrices over CyclotomicFields, this might help getting matrix groups for the universal cyclotomic field working. Thanks again for your helps! Christian his solved the problem of being able to define this group. -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
