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. > > 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.