Generating a function from a series

*To*: mathgroup at smc.vnet.net*Subject*: [mg65354] Generating a function from a series*From*: Geico Caveman <spam at spam.invalid>*Date*: Tue, 28 Mar 2006 04:05:19 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

How does one generate a function from a series ? For example : sf=Series[f(x),{x,0,3}]; fs[y_]=sf/.x->y Now this leaves that pesky O(()^4) term in the function definition, rendering the function useless for plots etc. How do I get rid of it ?

**Follow-Ups**:**Re: Generating a function from a series***From:*Murray Eisenberg <murray@math.umass.edu>

**Re: Generating a function from a series***From:*Pratik Desai <pratikd@wolfram.com>

**Re: Generating a function from a series***From:*Adriano Pascoletti <pascolet@dimi.uniud.it>