On Wednesday, March 5, 2014 2:53:29 AM UTC+1, Charlie Paul wrote: > > I'm interested in doing the Tensor Core project for GSoC. >
That's good news. > Other than the standard physics fare and a couple semesters of linear > algebra, I've also taken differential geometry. > SymPy currently also has a differential geometry module, with basic support for tensors (covariant components only). http://docs.sympy.org/latest/modules/diffgeom.html > > Firstly, what is the status on SymPy's tensors compared to the Linear > Algebra Vision document linked from the idea page? > In sympy/tensor/indexed there is an old module. There is now a more mathematically rigorous tensor module: http://docs.sympy.org/latest/modules/tensor/tensor.html It was initially meant to characterize abstract tensors (i.e. tensor objects without components data). There is also support for data, but there is still a lot of work to be done. The major inspiration for the new tensor module is *xAct*, a Wolfram Mathematica package to do tensor manipulations. It has been used extensively concerning symbolic math in General Relativity. xAct is open source. It would be powerful to merge sympy/tensor/tensor tensors with those in sympy/diffgeom. I see that there is a relatively recent tensor module (the aforementioned > document is a couple years old). It looks like it isn't comprehensive, but > I thought that I would check, as suggested on the GSoC page. > I don't know if that page has been updated, in any case there have been some additions. > > Also, I'd like to check the status of the Google Code and Github issues > pages. Is one preferred and takes precedence over the other, or are they > both used simultaneously? > > I added a lot of issues concerning the new tensor module a month ago into github. They are prefixed by *Tensor*. Thank you, > > You're welcome. -- 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/3a260159-dee1-4d8a-9c54-9e69857e52f9%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
