solveset should only be for solving equations algebraically. Actually solving an ODE or PDE should be left to dsolve and pdsolve. The way this is handled in solve is that something like solve(f(x).diff(x) - f(x), f(x).diff(x)) gives [f(x)], in other words, f(x) and f(x).diff(x) are considered to be independent of one another.
Aaron Meurer On Fri, Mar 11, 2016 at 1:00 AM, Shekhar Prasad Rajak <shekharrajak.1...@gmail.com> wrote: > we can't solve these using solveset ? > > solve_for_functions_derivatives > https://github.com/sympy/sympy/blob/master/sympy/solvers/tests/test_solvers.py#L435 > > How to solve ordinary differential equations, partial differential equations > using solveset ? I haven't found any testcase for that and not in the > solveset.py. > > > -- > Shekhar Prasad Rajak. > > On Thursday, 4 February 2016 00:40:34 UTC+5:30, Shekhar Prasad Rajak wrote: >> >> >> Hello, >> my name is Shekhar Prasad Rajak.I want to discuss about Solver and >> Solveset module >> https://github.com/sympy/sympy/wiki/GSoC-2016-Ideas#solvers .I am going to >> apply for GSoc'16, so trying to know >> what sympy community expecting. >> Solveset came to Replace all internal solve() calls >> https://github.com/sympy/sympy/issues/8711 >> So I should focus on Solveset,right? >> I have some questions : >> 1.What are the main problems/issues in Solver and Solveset right now? >> 2.Is Solveset module done?If not,what are the main features, that should >> be added ? >> I have seen Harsh's PR : https://github.com/sympy/sympy/pull/7523 >> It seems, these need some works : >> -functions solvable by LambertW >> -functions that can be recast as polynomials with a change of variables >> this, for example; this can be >> factored out of solve where multiple generators are handled >> -use something like this : >> https://github.com/sympy/sympy/pull/7523#issuecomment-62198981 >> to handle the XFAILed test test_real_imag_splitting1, this will be >> handled in the set module. >> >> 3.This is list of Issues/ Discussions I found. >> >> https://github.com/sympy/sympy/wiki/GSoC-2014-Application-Harsh-Gupta:-Solvers#relevant-issues-discussions-and-references >> but I don't know, whether they are solved or not. >> Issues which are still open in github repo, need solutions. >> There are also links of pdf and research papers, I am not sure whether >> they are implemented or not. >> >> 4.Can we use python library multiprocessing,Synchronization for the faster >> execution?one issue was opened for the same,which is closed now.But it is >> always better to take less time. >> >> >> -- >> Shekhar Prasad Rajak >> > -- > 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 https://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/a9e65c58-1947-4e55-bbb8-fa01a5d57254%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 sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. 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%3D6KnnbU7SczikFXaGnbqRXtbsbo7u6sb%3Dp6RDPhuPqVaQw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
