Re: Plotting 2d graphs?
- To: mathgroup at smc.vnet.net
- Subject: [mg57174] Re: [mg57168] Plotting 2d graphs?
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Fri, 20 May 2005 04:43:07 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
Needs["Graphics`"];
soln=Solve[2x^2+16x+32==0,x]
{{x\[Rule]-4},{x\[Rule]-4}}
Plot[2x^2+16x+32,{x,-5,-3}];
ImplicitPlot[2x^2+16x+32==y,
{x,-5,-3},AspectRatio->1/GoldenRatio];
Plot[Evaluate[y/.
Solve[(x-5)^2/16+(y+4)^2/25==1,y]],
{x,1,9}, AspectRatio->Automatic];
ImplicitPlot[(x-5)^2/16+(y+4)^2/25==1,
{x,1,9}];
Bob Hanlon
>
> From: Paul Hughes <psidoc at gmail.com>
To: mathgroup at smc.vnet.net
> Date: 2005/05/19 Thu AM 03:09:21 EDT
> Subject: [mg57174] [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.
>
>