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MathGroup Archive 2006

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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 ?


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