There was some discussion of this in the sage group. The code will also work in SymPy:
http://ask.sagemath.org/question/505/symbolic-matrices (also see http://stackoverflow.com/questions/5708208/symbolic-matrices-in-mathematica-with-unknown-dimensions/5710838 ) This type of approach seems to be what you were talking about, and can easily be extended to contain the is_positive_definite type properties. It needs some work to make inverse work nicely with a square product of rectangular matrices, etc... -- You received this message because you are subscribed to the Google Groups "sympy" group. To view this discussion on the web visit https://groups.google.com/d/msg/sympy/-/OOTzZmk0RPoJ. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
