El jueves, 20 de noviembre de 2014 10:45:50 UTC-3, brombo escribió: > > You might wish to be more general and implement vector analysis as a > function of a metric tensor. See the following link - > http://en.wikipedia.org/wiki/Curvilinear_coordinates#Vector_operations > > Can you explain me a bit more? you mean that instead of calculating dot product or cross product in a specific coordinate system, I calculate that using the metric tensor as it appeared in the wikipedia article?
El jueves, 20 de noviembre de 2014 10:45:50 UTC-3, brombo escribió: > > You might wish to be more general and implement vector analysis as a > function of a metric tensor. See the following link - > > http://en.wikipedia.org/wiki/Curvilinear_coordinates#Vector_operations > > > On 11/19/2014 10:34 PM, Lukas Zorich wrote: > > Thanks Jason! > > El miércoles, 19 de noviembre de 2014 19:17:24 UTC-3, Jason Moore > escribió: >> >> Lukas, >> >> Sachin Joglekar developed the vector package this past summer. I was his >> GSoC mentor on the project. You can check out this implemented of the >> Cartesian coordinate system: >> >> https://github.com/sympy/sympy/blob/master/sympy/vector/coordsysrect.py >> >> You'd basically need to create a class for spherical that has this same >> functionality. You may be able to create a spherical class that converts >> the input to Cartesian and just manages a Cartesian system behind the >> scenes. Or method can be implemented explicitly using spherical coordinates. >> >> >> Jason >> moorepants.info >> +01 530-601-9791 >> >> On Wed, Nov 19, 2014 at 5:05 PM, Lukas Zorich <lukas....@gmail.com> >> wrote: >> >>> Hi everyone, >>> >>> I am Lukas from Chile, pursuing a degree in Computer Science and with >>> interests in mathematics. I would like to start contributing to sympy. >>> Reading through the mailing list, I saw this >>> <https://groups.google.com/forum/?hl=es-419#%21topic/sympy/4SIr_6iW6v4>post >>> that says that the Spherical Coordinates System isn't implemented yet, so I >>> would like to start from there. I wanted to know who can I ask to give me >>> further information about this specific functionality, or things I need to >>> know before implementing this (not about the theory, but about the concrete >>> implementation of the spherical system in the vector module). >>> >>> Thanks :)! >>> Lukas >>> -- >>> 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+un...@googlegroups.com. >>> To post to this group, send email to sy...@googlegroups.com. >>> Visit this group at http://groups.google.com/group/sympy. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/sympy/d6a7e710-7d96-452d-8a7b-6518c0226225%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/sympy/d6a7e710-7d96-452d-8a7b-6518c0226225%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > 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+un...@googlegroups.com <javascript:>. > To post to this group, send email to sy...@googlegroups.com <javascript:>. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/86d19d32-44b7-4530-b24a-3742c3276099%40googlegroups.com > > <https://groups.google.com/d/msgid/sympy/86d19d32-44b7-4530-b24a-3742c3276099%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > > -- 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 http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/7105867e-e256-44d3-a2a8-8fed73f11798%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
