Hi, I have written analytic eigenvectors for the Hydrogen atom using sympy:
http://github.com/certik/sympy/blob/hydrogen/hydrogen.py that I need to test my FEM solver against. I can imagine other QM systems, that have analytic, or at least some infinite series solutions. Where is the best place to have this in sympy? Another thing are formulas for the energy of many QM systems (1D, 2D, 3D, spherically symmetric, box, ...), things like one particle in the potential 1/r, r^2, r^2 - r, and so on. I keep finding those formulas over and over again on the net and then forgetting. In many cases, the analytic formula is not known, but is given in terms of nodes of some bessel function or something. I'd like to have a collection of these problems, so that it gives me the exact energy with any precision, and I can compare the spectrum coming from the FE code. Brian, since you spent quite some time thinking how to represent various things in QM with sympy, do you have any thoughts on this? Ondrej -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sy...@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.