Updates:
Labels: -EasyToFix Series
Comment #10 on issue 508 by pr...@goodok.ru: exp(-0.5*x**2).series(x, 10)
fails
http://code.google.com/p/sympy/issues/detail?id=508
It is not easy to fix. As was written in #9.
Now exp(-0.5*x**2).series(x, 10) not fails, but gives incorrect result
1.92874984796392e-22 - 1.92874984796392e-21*x + 9.54731174742139e-21*x**2 -
3.
11814558754167e-20*x**3
All coeffs are obviously near zero at the limit of accuracy.
exp(-0.5*x**2).series(x, 0) works as needed.
1 - 0.5*x**2 + 0.125*x**4 + O(x**6)
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