> For a complex square matrix the genuine adjoint is denoted A^* and is > the conjugate transpose. That is a special case of the adjoint of a > linear operator on an inner product space (in the case of C^n with the > standard inner product).
That's what I thought, too. We should definitely change this. An extremely non-random sample of linear algebra texts in my office suggests this is the usual use in undergraduate texts. > I support your proposal but it would have to be very well documented. > We already have the problem, for those wanting to use Sage to teach > linear algebra, that it uses the Magma convention where matrices act > on the right on row vectors instead of the more common convention in > textbooks of a left action on column vectors. This is potentially > another situation like that... Having not used Sage to teach linear algebra, I haven't run into that... yet. But probably the current situation with the adjoint is the reverse situation (i.e., current behavior is not the usual convention for teaching). With respect to 2., maybe a search of all sagenb worksheets for uses of adjoint would be helpful in ascertaining things... or it could be a backwards-incompatible change in time for 5.0. Whenever that happens. But I don't think there is a good way to come up with an interim solution, short of adding a keyword nonclassical=True, which seems extremely onerous! - kcrisman -- 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
