"Closed-form" for me means "SymPy returns an answer." "simple" for me means "not too complicated, and preferably not using any special functions."
I just want something like "If integrate() cannot compute the integral, it returns an unevaluated Integral() object <example here>" for the new tutorial, but without advertising any obvious deficiencies in SymPy's integration algorithms. Maybe some nonelementary algebraic integral (but that doesn't hang heurisch())? Aaron Meurer On Mon, May 27, 2013 at 1:25 PM, Rathmann <rathmann...@gmail.com> wrote: > How do you want to define closed form? > > If you allow Meijer G-functions, isn't pretty much anything integable? > > There are lots of examples expression without elementary antiderivatives: > sin(x)/x , e**(-x**2), etc., but Sympy gives answers for these, of course. > > > On Monday, May 27, 2013 10:53:22 AM UTC-7, Aaron Meurer wrote: >> >> What is a good example of a (preferably simple) integral that SymPy >> will not likely be able to ever do, because there really aren't any >> closed forms of it, even in terms of special functions? I need a nice >> example of when integrate() returns an Integral() in my new tutorial. >> Either definite or indefinite will do fine. >> >> Aaron Meurer > > -- > 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. > > -- 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.
