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.