Status: New
Owner: ----
Labels: Type-Defect Priority-Medium Series
New issue 3772 by [email protected]: coefficients of x**0 in series
http://code.google.com/p/sympy/issues/detail?id=3772
I am able to get the terms of a series expansion by doing ser.coeff(x**n)
for n > 1 with no problem. For example:
exp(x).series().coeff(x**4)
1/24
However, when I ask for the constant term, I also get the O() term and the
x:
exp(x).series().coeff(x**0)
⎛ 6⎞
1 + x + O⎝x ⎠
In a geometric series, I get everything:
(1/(1-x)).series().coeff(1)
2 3 4 5 ⎛ 6⎞
1 + x + x + x + x + x + O⎝x ⎠
I would expect the answer to just be 1 for all of these examples.
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