RE: dropping higher order terms
- To: mathgroup at smc.vnet.net
- Subject: [mg32631] RE: [mg32596] dropping higher order terms
- From: "Higinio Ramos" <higra at usal.es>
- Date: Fri, 1 Feb 2002 02:02:34 -0500 (EST)
- References: <200201310645.BAA04271@smc.vnet.net>
- Reply-to: "Higinio Ramos" <higra at usal.es>
- Sender: owner-wri-mathgroup at wolfram.com
Try
(Series[f(x)/g(x),{x,0,2}]//Normal) * g(x)
Higinio
----- Original Message -----
From: Chad Junkermeier <cej38 at email.byu.edu>
To: mathgroup at smc.vnet.net
Subject: [mg32631] [mg32596] dropping higher order terms
> I have a problem where I have a function of the form
>
> f(x) = (a0 x^0 + a1 x^1 +a2 x^2 + ...+ aN x^N) * g(x)
>
> I would like to be able to get rid of the higher order terms without
> altering the form of g(x). Resulting in:
>
> f(x) = (a0 x^0 + a1 x^1 +a2 x^2) * g(x)
>
> I tried the following:
>
> Series[f(x)/g(x),{x,0,2}] * g(x)
>
> But this gives the wrong answer. How can I do this?
>
> Chad Junkermeier
>
> Department of Physics and Astronomy
>
> Brigham Young University
>
> email: junkermeier at byu.edu
>
> phone: 801-368-3529
>
>
>
>
>