We are working on a Python module built on top of GiNaC that implements alternating forms etc. The project is in its early stages, but you can download the development repository with hg clone http://www.fenics.org/dev/exterior if you have mercurial (hg) installed. Regards, Kent-Andre Mardal Simula Research Laboratory
After finding Maple inflexible and temperamental, I am interested in using GiNaC for some computations in exterior differential systems.
I've read through the documentation fairly carefully, but I haven't seen any routines for working with exterior differential forms so far.
Has anyone written a library to deal with alternating forms, including things like wedge-products, exterior differentiation, Lie derivatives (via Cartan's formula), and left-hook (inner product with vectors)?
Thanks, Abe Smith (Duke University)
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