William, Thanks for pointing out that I was wrong about the lifting problem and original of this slow behavior.
Rather than just putting in place the solution by lifting to ZZ, which you show to be much faster for reasonable size, I hope someone can profile arithmetic or linear algebra for ZZ/nZZ and figure out why this determinant is so "dog slow". Are there too many GCD's or what is going on? I hope the original p-adic problem also gets a track rather than being lost by my side comment, since there the problem was that a wrong answer was being returned -- a much more serious issue! Cheers, David --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
