RE: Simple question
- To: mathgroup at smc.vnet.net
- Subject: [mg29458] RE: [mg29426] Simple question
- From: "David Park" <djmp at earthlink.net>
- Date: Wed, 20 Jun 2001 04:36:39 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
George,
Use the Normal command.
e1 = Series[Sin[x], {x, 0, 3}]
SeriesData[x, 0, {1, 0, -1/6}, 1, 4, 1] (in Input Format, normal display
look different. )
f[x_] = Normal[e1]
x - x^3/6
Plot[{Sin[x], f[x]}, {x, 0, 2}];
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/
> -----Original Message-----
>
> Dear Sirs/Madame;
>
> I tried using the Series[] function to generate a series expansion
> (polynomial in the dependent variable) for a relatively simple function,
> which M did nicely, but it insistes on including an "order of" term
> (O[stuff*dep_var]) at the end of the polynomial. When I try to plot this
> function, M insists on including it in the evaluation so that the
> O[] term
> is a non-numerical value and hence cannot be plotted. How do I get rid of
> this pesty appendage?? I tried a simple cut-paste, but even if I
> explicitly
> delete the "order of" symbol, M somehow restores it!!! (I ask M
> to list the
> function before trying to plot it, and presto, there is the "order of"
> thing AGAIN. Please, can anyone explain to me how to get around this
> problem. Many Thanks for your assistance.!!!!!!!
>
>