It's not required to add things to the wiki. It can make it easier for us to find your proposals before the deadline when looking at them. After the deadline Google requires us to only look at the final PDF, so it doesn't matter.
Aaron Meurer On Sun, Apr 2, 2017 at 7:30 PM, Arif Ahmed <[email protected]> wrote: > I have written a proposal as well. Can you please take the time to review it > ? : > https://docs.google.com/document/d/1pIH-HXoAesl34_Qs41Mfmwxa8-2ExYvhVHh9bfS4ijQ/edit > > Also , is it necessary to add this content to the SymPy wiki ? > > > On Thursday, March 30, 2017 at 3:56:11 AM UTC+5:30, Ondřej Čertík wrote: >> >> Hi, >> >> Here is another GSoC idea from my collaborator at UC Davis, prof. >> Sukumar [1]. His student Eric Chin gave me his permission to post the >> project here, see the attached project description and his poster with >> more details. >> >> The general idea is to implement a module in SymPy to help integrate >> homogeneous functions over arbitrary 2D and 3D polytopes (triangles, >> quads, polygons, hexahedra, and more complicated 3D elements). The >> applications are in extended finite elements which requires an >> efficient quadrature of a 3D function over the finite element (say a >> hexahedron). Other applications are computer graphics (ridid body >> simulations of solids) and to devise cubature rules on arbitrary >> polytopes. >> >> See the references in the attached document. They use the Stokes >> theorem and Euler theorem to transform the 3D integral (which >> otherwise would require a 3D quadrature --- very expensive) to >> integral over faces and eventually edges, and so it becomes much >> faster. Features needed from SymPy: >> >> * exact handling of integers and rationals >> * symbolic representation of homogeneous functions >> * symbolic derivatives >> * numerical evaluation >> >> At first it sounds technical, but this would be extremely useful even >> for my own work. The spirit is roughly in line of this module that I >> started and others finished: >> >> >> https://github.com/sympy/sympy/blob/8800fd2ab1553cd768ad743c44b3ed00c111c368/sympy/integrals/quadrature.py >> >> The ultimate application of this sympy.integrals.quadrature module are >> double precision floating point numbers in Fortran, C or C++ programs, >> however the reason it's in SymPy is that one can use SymPy to get >> guaranteed accuracy to arbitrary precision. In principle >> sympy.integrals.quadrature could also be implemented using libraries >> like Arb (https://github.com/fredrik-johansson/arb), but Arb didn't >> exist when I wrote quadrature.py, and the code of quadrature.py is >> very simple, using regular SymPy, so there is still value in having >> it. >> >> The module proposed by this project would require symbolic features >> from SymPy as well, such as the symbolic derivatives, as well as the >> ability for the user to input the expression to integrate >> symbolically. >> >> The above project could also lead to a publication if there is interest. >> >> If there are any interested students, please let me know. I can mentor >> as well as help with the proposal. >> >> Ondrej >> >> [1] http://dilbert.engr.ucdavis.edu/~suku/ > > -- > 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 [email protected]. > To post to this group, send email to [email protected]. > 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/011bad81-0cd6-4156-954b-c015e38dc1ea%40googlegroups.com. > > 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 [email protected]. To post to this group, send email to [email protected]. 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/CAKgW%3D6L7YcWbMpHgap5W4B2gc7uzLGX-j5XgZdDj%3Dw0WaSZDzg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
