Hi, I've spotted a strange behaviour of Permutations.cardinality(): first it reports a weird number, but after a call to list() it gets ok. Any reason why?
I copy a code that compares the behaviour of Tuples, Permutations and Arrangements. %%%%%%%%%%%%%%% from sage.combinat.permutation import * from sage.combinat.tuple import * ms=[1,1,1,2,2,2,3,3,3] tms = Tuples(ms,3) pms = Permutations_msetk(ms,3) ams = Arrangements_msetk(ms,3) print("ctms: " + str(tms.cardinality())) print("cpms: " + str(pms.cardinality())) print("cams: " + str(ams.cardinality())) print("ltms: " + str(tms.list())) print("lpms: " + str(pms.list())) print("lams: " + str(ams.list())) print("ctms: " + str(tms.cardinality())) print("cpms: " + str(pms.cardinality())) print("cams: " + str(ams.cardinality())) %%%%%%%%%%%%%%% Best, Karol -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.