I'm a little confused with the .series method.
In [8]: sin(x).series(x,0,10)
Out[8]:
3 5 7 9
x x x x
x - ── + ─── - ──── + ────── + O(x**10)
6 120 5040 362880
In [9]: cos(x).series(x,0,10)
Out[9]:
2 4 6 8
x x x x
1 - ── + ── - ─── + ───── + O(x**10)
2 24 720 40320
>From this it seems that .series(x,point,n) calculates the series expansion
of f(x) till the nth exponent of x...
But,
In [17]: exp(x**2).series(x,0,10)
Out[17]:
4 6 8 10 12 14 16
18
2 x x x x x x x
x
1 + x + ── + ── + ── + ─── + ─── + ──── + ───── + ────── + O(x**20)
2 6 24 120 720 5040 40320
362880
This doesnt seem to match up... Does the parameter 'n' mean 'the no of
terms in the series expansion' or ' the last exponent of x in the
expansion' ?
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