Hi! The current implementation of is_bistochastic in sage.matrix.matrix2 allows negative inputs. For example
sage: m = matrix([[-1,2],[2,-1]]) sage: m.is_bistochastic() True But a stochastic matrix should really only allow nonnegative entries. Can I open a ticket to fix this? Best, Anne -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
