On Jun 4, 2009, at 5:48 PM, Craig Citro wrote: > >>> Should this be changed so that m.change_ring(R) always returns a >>> copy? >> >> Yes, I think so. >> > > +1
I'd say No. I think change_ring should be fast when it's already the right ring, it shouldn't be used for making copies (unless necessary). Perhaps it could take an optional copy parameter. - Robert --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
