John Jones on Mon, 25 Feb 2008 22:35:32 +0100

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get series precision


If I have a power series, is there a function which tells me its precision? For example,

f1 = exp(x)
f2 = (f1-1)/x

With the default, f1 is +O(x^17) and f2 is +O(x^16). How can a script tell which is which?