[sympy] Undoable integral example

2013-05-27 Thread Aaron Meurer
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

Re: [sympy] Undoable integral example

2013-05-27 Thread Chris Smith
The circumference of an ellipse has no closed form solution, I believe. -- 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

Re: [sympy] Undoable integral example

2013-05-27 Thread Chris Smith
see docstring of Ellipse.circumference for integrand -- 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

Re: [sympy] Undoable integral example

2013-05-27 Thread Tom Bachmann
But that's essentially by definition a complete elliptic integral ... I think any integral which we would describe as simple is simple enough to have attracted someone's attention and been given a special name. I might be wrong, of course. On 27.05.2013 19:06, Chris Smith wrote: The