Also please be aware of the patch requirement. The pull request should be
submitted by the application deadline (it's ok if it isn't merged by then).
https://github.com/sympy/sympy/wiki/GSoC-2019-Application-Template. The
deadline is only in a few days.
Aaron Meurer
On Sat, Apr 6, 2019 at 3:01 PM Oscar Benjamin
wrote:
> Hi Grace,
>
> I don't know where it is you're looking to see the proposals for
> differential equations but I can tell you that the ODE systems code is
> a bit of a mess right now. See the label solvers.dsolve on Github for
> relevant issues/PRs.
>
> At the moment there are many methods for very specific types of ODE
> but many are untested and/or don't work and many obvious cases are
> missing. What is needed is some good more general methods. In some
> cases I have tried to come up with examples but I can't come up with
> any example where the method is useful.
>
> If I was going to spend time fixing this then I would firstly:
>
> 1. Try to improve test coverage for the systems methods that are there
> 2. Fix the constant coeff homogeneous case (there are existing stalled
> PRs) and a number of open issues
> 3. Remove as many of possible of the methods that are special cases of 2.
> 4. Handle the non-homogeneous version of 2 (and remove corresponding
> special cases)
> 5. Add a generalised version of the nth_algebraic ODE solver that can
> be used for simple ODE systems.
>
> There will still be plenty more to do after that.
>
> A good way to start working on this would be to identify the untested
> methods and try to add tests for them. (If you run test_ode with
> coverage testing enabled you can see which ones are covered).
>
> --
> Oscar
>
> On Sat, 6 Apr 2019 at 19:55, wrote:
> >
> > Hi everyone,
> >
> > My name is Grace Arnold and I'm a computer science major at the Illinois
> Institute of Technology. I have a few years of experience with Java and
> Python, and have taken the Differential Equations course. I'm interested in
> contributing to SymPy's Differential Equations methods. Specifically, I see
> that general linear systems of more than two equations was mentioned in the
> project ideas. I would love to contribute to this project, but if anyone
> could provide me with more direction regarding this project (i.e. more
> desirable functions to be implemented within differential equations), then
> I would be happy to hear them!
> >
> > I will be working on my proposal and more ideas soon and will post them
> here, if anyone would like to read it and tell me what I can improve upon.
> >
> > Thank you co much,
> > Grace Arnold
> >
> >
> >
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