Hi all, Unfortunately I have to report that we have found a serious bug in fmpz_poly_signature. It was computing incorrect signatures for many polynomials.
The algorithm was incorrect in that it was not taking absolute values at a certain point. This would throw out the result in very many cases, e.g. cyclotomic polynomials. It's amazing that the bug was not picked up by the test code, which actually went to quite some trouble. It wasn't a particularly rare bug. It just happened to not be triggered by any of our tests. The bug has now been fixed in trunk and will make it into the 2.5 release which should be out either today or within a few days at most. Bill. -- 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.
