Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 2753 by [email protected]: series(1/cos(x/log(x)),x,0,5) does
not work
http://code.google.com/p/sympy/issues/detail?id=2753
This series fails
```
from sympy import *
x = Symbol('x')
series(1/cos(x/log(x)),x,0,5)
Traceback (most recent call last):
...
ValueError: cannot compute leadterm(-x**2/(2*log(x)**2) +
x**4/(24*log(x)**4) + O(x**5), x), got c=-1/(2*log(x)**2)
```
A roundabout is
```
t = Symbol('t')
series(1/cos(x*t),x,0,5).subs(t,1/log(x)).series(x,0,5)
1 + x**2/(2*log(x)**2) + 5*x**4/(24*log(x)**4) + O(x**5)
```
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