As a number teorist who is more liklely to want Hermite and Smith normal forms than an actual echelon form (i nthe usual linear algebra over fields sense), I would be quite happy for echelon form of a matrix over ZZ to promote to QQ, and have differently names functions for Hermite and Smith (perhaps smith_form() and hermite_form()!)
John 2010/1/20 Rob Beezer <goo...@beezer.cotse.net>: > First - thanks, Jason, for taking this on. > > I think the rref approach makes a lot of sense for a change this big, > and will be really useful for educational settings moving away from > calculators (like me this term!). If we then want to replace > instances of echelon_form, it can happen at its own pace. > > About 150 of the 821 instances of "echelon" in the source are in sage/ > modules/free_module.py, and all but about 100 of the remainder are in > sage/matrix/*. Perhaps dividing the Sage surgery along some division > of directories/modules would be effective. I'm in for some of that. > > Rob > > -- > 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 > >
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