Alexander, > I discovered Sympy just a few months ago, and I'm impressed. > I started to develope a General Relativity package based on Sympy at my > University. I've already written classes like Christoffel, Geodesic (which > computes the geodesic equations),Constants-of-motions (which computes the > constants of motion from the geodesic equations), Metric, Riemann, Ricci, > Energy-momentum tensor, Einstein field equations, and more. > I'm trying to write tensors in the most possible general way by typing in > equations in the index form as found in books.
This is fantastic. The Physics capabilities in sympy are rapidly expanding and we would love to include your relativity stuff in sympy.physics if you are willing to release it under the BSD license. There has been work recently on Tensor related things and I think it would make sense to integrate what you have with the existing stuff. In addition, we have a few relativity related examples. Here are some links to the relevant parts of the code base: https://github.com/sympy/sympy/blob/master/examples/advanced/curvilinear_coordinates.py https://github.com/sympy/sympy/blob/master/examples/advanced/relativity.py https://github.com/sympy/sympy/tree/master/sympy/physics https://github.com/sympy/sympy/tree/master/sympy/tensor If you want to contribute your stuff to sympy (please !) I suggest the following: * Create a github account and fork sympy. * Create a branch in your sympy fork and add your stuff to sympy.physics.relativity * Add tests in sympy.physics.relativity.tests * Add doctests and docstrings. * Submit for review as a pull request in github. We also have an implementation of SU(2) and have though about adding other groups as well. A large number of sympy devs are in physics, so we would be very excited to have you aboard. Cheers, Brian > But first I would like to know what's written on sympy about this subject. > Thanks a lot. > -- > Alexander Gallego C. > Grupo de Fenomenología de Interacciones Fundamentales. > Instituto de Física, Facultad de Ciencias Exactas Y Naturales. > Universidad de Antioquia. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > 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. > -- Brian E. Granger, Ph.D. Assistant Professor of Physics Cal Poly State University, San Luis Obispo bgran...@calpoly.edu elliso...@gmail.com -- You received this message because you are subscribed to the Google Groups "sympy" group. 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.
