Thanks for putting a github branch up. I am crazy busy, but I did glance though things a bit...
* Can you create a base class for all exceptions in secondquant, like class SecondQuantError(Exception): pass and make all other exceptions subclasses of this. * Also, what happens if you pass bosonic operators to the new functions like NO, Wicks. If they don't work for Bosons, they should raise a NotImplementedError (unless you want to make them work for Bosons ;-)) * It looks like the idea of the fermi surface is built into the fermion operators and states at the lowest level. I have thought about this for a few days, and I am not sure this is the best way of handling it. I realize the using particles and holes is extremely useful for practical calculations, but... There are many situations where you want to work with the fermion operators, but don't want to think about particles and holes. The formalism of second quantization for fermions doesn't need to assume anything about particles and holes. Having particles and holes built in to the lowest level of the fermionic implementation means that we can't easily implement things like wicks theorem in a general boson/fermion independent manner. Do you think it would be possible to implement the fermionic stuff in a way that didn't assume the particle/hole stuff up front, but that stuff could be added in a high-level. The situation is similar for bosons where you have to do tricks to handle the population of the ground state. Cheers, Brian Cheers, Brian On Tue, Oct 13, 2009 at 10:58 AM, jegerjensen <jensen.oyv...@gmail.com>wrote: > > I implemented lots of doctests, and pushed to my new github account: > > git://github.com/jegerjensen/sympy.git > > There is still some doctests missing, but I think all the important > stuff is covered. > > Øyvind > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy-patches" group. To post to this group, send email to sympy-patches@googlegroups.com To unsubscribe from this group, send email to sympy-patches+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sympy-patches?hl=en -~----------~----~----~----~------~----~------~--~---
