I vote YES, because I think that in most cases when these functions are used the intention is to end up with something similar but not equal to the identity or zero matrix.
Andrey -- 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