Status: Accepted Owner: ---- Labels: Type-Defect Priority-Medium
New issue 2953 by someb...@bluewin.ch: Limits of Meijerg http://code.google.com/p/sympy/issues/detail?id=2953 The limit(...) function fails when we try to compute the limit of an expression involving meijerg functions. The failure is not due to missing mathematical capabilities but a real python error. Here is an example: In [14]: G = meijerg((), (), (1,), (0,), -x) In [15]: G Out[15]: meijerg(((), ()), ((1,), (0,)), -x) In [16]: g = hyperexpand(G) In [17]: g Out[17]: sqrt(x)*besseli(1, -2*sqrt(x)) In [18]: limit(g,x,0) Out[18]: 0 This is still ok. In [19]: limit(G,x,0) AttributeError: 'Tuple' object has no attribute 'limit' But this is not. And the limit towards oo is also a bit strange: In [20]: limit(g,x,oo) Out[20]: oo*besseli(1, -2*sqrt(1/x)) Should be -oo according to MMA. BTW, All tests done on the gsoc-3 branch. -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-issues@googlegroups.com. To unsubscribe from this group, send email to sympy-issues+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
