Re: quadric surfaces
- To: mathgroup at smc.vnet.net
- Subject: [mg12824] Re: quadric surfaces
- From: Martin Kraus <mkraus at theorie3.physik.uni-erlangen.de>
- Date: Fri, 12 Jun 1998 18:15:03 -0400
- Organization: Univ. Erlangen-Nuernberg, Theoret. Physik III
- References: <6lqnha$o17@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Russell.E.Goodman wrote: > > Hello all... I'm working on some Mathematica for a Calc IV course and > needed some help with quadric surfaces. How can you get > Mathematicatica to graph a nice looking hyperbolic paraboloid as well > as other quadric surfaces like you see in the textbooks. I've ended up > using ParametricPlot3D, CylindricalPlot, and others but I still can't > get a perfect/textbook example of a hyperbolic paraboloid. Help?? > > Russ Goodman > University of Oklahoma -- Department of Mathematics rgoodman at ou.edu As far as I know the command ContourPlot3D (from the standard package Graphics`ContourPlot3D`) does exactly what you are looking for. (If your surface is given by an equation you have to bring it into the form f[x,y,z] == 0 and then give ContourPlot3D the function f[x,y,z] as first argument. Note that the PlotPoints option of CountourPlot3D is completely different from the usual meaning. Anyway their is a detailed description in the Mathematica online-help.) Hope that helps Martin