sympy/sympy — pull request #1215 by tsndiffopera (2012-04-06 11:50:05+00:00)
Title: Resolve, Issue 2856: limit(x**16/(x**16 + 1), x, oo) fails.

The limit, limit(x**16/(1+x**16), x, oo) fails, not only for 16, but for an exponent of 'x' in expression, greater than 16.
This patch gives the accurate results.
Necessary test cases are also attached.