On Tue, Feb 7, 2012 at 8:11 AM, javier <vengor...@gmail.com> wrote: > How about testig for the desired mathematical properties? If this is a > Gram-Schmidt test, the resulting matrix M should be orthogonal, so we > can test for M*M.transpose() being the identity matrix (up to > numerical accuracy). Of course, this type of indirect test should > belong to the test section, not to the examples section.
+1, this is the best way to test it. However, this kind of of indirect test is exactly the thing that *should* go in the examples section (whether or not it's needed for testing), as it is a good illustration of what the expected mathematical properties are. (In fact I consider tests like this to be much better than "here's the answer" tests; one could take the Gram-Schmidt of a random 100x100 matrix and verify it's "nearly" orthogonal rather than print out the meaningless coefficients themselves.) - Robert -- 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
