Re: Graphing Functions for an idiot

• To: mathgroup at smc.vnet.net
• Subject: [mg27265] Re: [mg27242] Graphing Functions for an idiot
• From: Tomas Garza <tgarza01 at prodigy.net.mx>
• Date: Wed, 14 Feb 2001 03:41:34 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

I find nothing wrong with what you are doing (I mean, if you are just
using plain Plot):

In[1]:=
f[x_] := x^3 - 3x
In[2]:=
Plot[f[x], {x, -3, 3}];

This plots as it should. Perhaps you could supply a copy of exactly what
you're doing.

Tomas Garza
Mexico City

-rp wrote:

> After spending an afternoon with the Mathematica Book, 4th Ed. by S.W.
I
> have found that I must be an official Idiot because I cannot figure
out how
> to do simple graphing of functions.
>
> instructing an idiot who -tried- figuring this out from the book - to
graph
> simple functions.
>
> Here is an example of what I am looking for:
>
> Graph the function f(x)=x^3-3x
>
> I read the section on the command "Plot" and no matter what I do I
either
> get a graph that doesn't represent the function I am trying to graph
or
> errors.

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