Is the last line a bug, or should the input required to be sorted and an error raised? Or am I missing something? The help for rank/unrank is not very complete.
sage: C = Combinations([0,1,2], 2) sage: C.unrank(1) [0, 2] sage: C.rank([0,2]) 1 sage: C.rank([2,0]) 0 -- 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