On Mon, Sep 21, 2009 at 5:56 AM, Jason Grout <jason-s...@creativetrax.com> wrote: > > Craig Citro wrote: >>> Is there a good reason for such a difference? >>> >> >> I think the only reason is that the vector code in Sage hasn't >> received much attention over the years. William and I talked about >> this a while back, and basically agreed that it would be best to >> rewrite most of the vector classes as a *very* light wrapper around >> matrices of size 1xn or nx1. This is one of the projects I'm planning >> on taking care of in the Fall, so if anyone has any thoughts or >> suggestions, please pipe in!
One comment. In this particular case doing what we suggest above would have resulted in slower code. Yann's 1-line fixe made the sparse vector matrix multiply faster than sparse matrix times matrix in this example. William > > > Very interesting. Could you post here when you start working on it? > I'd be interested in at least following your progress and possibly helping. > > Jason --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
