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Re: Plotting 2d graphs?


In[1]:=
fn=2x^2 + 16x + 32;

In[2]:=
Plot[fn,{x,0,5}];

In[3]:=
<<Graphics`ImplicitPlot`

In[4]:=
eqn=(x-5)^2/16+(y+4)^2/25==1;

In[5]:=
ImplicitPlot[eq,{x,0,12}];

Please notice the double "==" at the end of In[5]

Tomas Garza
Mexico City
----- Original Message ----- 
From: "Paul Hughes" <psidoc at gmail.com>
To: mathgroup at smc.vnet.net
Subject: [mg57182] [mg57168] Plotting 2d graphs?


> I'm having trouble using the basic 2d plot function.  I want to be
> able to plot things such as a simple quadratic or ellipse:
> 
> Examples:  2x^2 + 16x + 32 = 0  (Quadratic)
> 
> (x-5)^2/16 + (y+4)^2/25 = 1  (Ellipse)
> 
> But have failed to do so, having tried every variation i can think of
> to get it to work.
> 
>


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