Hi, I just put my proposal on wiki page: https://github.com/sympy/sympy/wiki/GSoC-2017-Application-Szymon-Mieszczak:-Implementation-of-multiple-types-of-coordinate-systems-for-vectors
If someone review it, I would be grateful. Szymon -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/7a6bd606-015b-4946-b965-049f82bc3f10%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.