Re: Mathematica Question

*To*: mathgroup at yoda.physics.unc.edu*Subject*: Re: Mathematica Question*From*: markp*Date*: Tue, 29 Jun 93 10:17:44 -0800

>Date: Mon, 14 Jun 93 15:33:51 -0700 >From: cooper at cs.ucla.edu (Mark G. Cooper) >To: mathgroup at yoda.physics.unc.edu >Subject: Mathematica Question > > >My question was referred to you from Dr. Vidal at UCLA. I would like to >generate a three-dimensional plot (and get a solution set) for an implicit >equation of the form x^2 + y^2 + z^2 + xy + xz + yz == 1 (each of the terms >on the left side may be multiplied by a constant--omitted). The equations >that I am working with will form ellipsoids. Mathematica Version 2.2 has a package, Graphics`ContourPlot3D`, that will do this. E.g.: ContourPlot3D[ x^2 + y^2 + z^2 + x y +y z + z x, {x, -2, 2}, {y, -2, 2}, {z, -2, 2}, Contours->{1.}] Mark Pundurs Publications Department Wolfram Research, Inc.