On Tue, Apr 20, 2010 at 7:42 AM, John Cremona <john.crem...@gmail.com> wrote: > In summary: what is a sensible or desirable normalisation depends a > lot on what the field is and what sort of mathematics you are doing! > > John
Matlab has a bug in its eigen routines, at least in its eigenvalue routines so I'm assuming the eigenvector ones as well. I was giving it real, symmetric positive definite matrices and it gave me complex eigenvalues. If I recall correctly, Maple doesn't normalize its eigenvectors. I don't see it as necessary since if someone wants them normalized, they can do it. Just make it clear in the docstring/documentation that the results returned aren't normalized. Cheers, Tim. --- Tim Lahey PhD Candidate, Systems Design Engineering University of Waterloo http://www.linkedin.com/in/timlahey -- 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
