On Sat, Jan 1, 2011 at 8:09 PM, Rob Beezer <goo...@beezer.cotse.net> wrote: > A fix is available at http://trac.sagemath.org/sage_trac/ticket/10543
Good, because this is a major bug! See below for how it could wreak havoc: sage: A = matrix(QQ,2,range(4)) sage: C = A.echelon_form() sage: C[0,0] = 20 sage: A.echelon_form() [20 0] [ 0 1] But that's not an echelon form! William -- 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