Today we had the first discussion with Prasoon and Sachin about their projects.
We did not progress much but at least we outlined the two general approaches that we can use for these modules (specifically for creating vector fields). I will give them somewhat arbitrary names here: - the `mechanics` way - having a Vector class that keeps all the information about the field and it is not part of expression trees in the way Basic and Expr are. For instance Vector(something along cartesian.x)+Vector(something along spherical.r) will result in Vector(complex internal structure). - the `diffgeom` way - having base/unit vectors and building all the rest in terms of their linear combinations (all this expressed as sympy expressions). Prasoon and Sachin did not have the time to look at the example problem that was given in the previous email yet (no harm done there, there is still some time before the official starting date). Probably this will be the subject of our next discussion. The next discussion was scheduled for tomorrow. After that I suggest that we keep most of the discussions to the mailing list and the gihub wiki and meet on irc / realtime wikis / google docs / etc once a week. Stefan -- 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?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
