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Re: Graphing Functions for an idiot


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.
>
> Could someone please help me - step by step - realizing that you are
> 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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