Hi There, As it was decided last week, for any MatrixSpace, one(), identity_matrix() and zero_matrix() must be cached and immutable. I've put a series of three patches on trac in ticket #8276. As William said, writing this patch was "a can of worm" and it is very likely to bitrott extremely fast since it touch many part of sage. This patch depends on another very simple ticket: #8294 "Copy is broken on 2x2 integer matrix (mutability is not set)". It would very appreciate if someone could review these patch soon.
Many thanks for your help, Florent -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
