Re: get series precision

[Karim Belabas <Karim.Belabas@math.u-bordeaux1.fr>]

* John Jones [2008-02-25 22:35]:
> 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?

#f1, #f2   ( or length(f1) if your old version of PARI doesn't know about #)

Cheers,

    K.B.
--
Karim Belabas                  Tel: (+33) (0)5 40 00 26 17
Universite Bordeaux 1          Fax: (+33) (0)5 40 00 69 50
351, cours de la Liberation    http://www.math.u-bordeaux.fr/~belabas/
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