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Re: region bounded by surfaces
 To: mathgroup at smc.vnet.net
 Subject: [mg61166] Re: region bounded by surfaces
 From: "JensPeer Kuska" <kuska at informatik.unileipzig.de>
 Date: Tue, 11 Oct 2005 06:19:13 0400 (EDT)
 Organization: Uni Leipzig
 References: <difq5e$f4f$1@smc.vnet.net>
 Sender: ownerwrimathgroup at wolfram.com
Hi,
and rewrite it into an implicit function, like
If[2  y^2  z^2 < 0  2  y^2  x^2 < 0, 1, 0]
and use ContourPlot3D[] does not help ??
You man also cut the two parametric surfaces with
the implicit versions by hand.
Regards
Jens
"David Turner" <dturner at faulkner.edu> schrieb im
Newsbeitrag news:difq5e$f4f$1 at smc.vnet.net...
 Hello,

 I did not describe my problem accurately in
surface intersection. I should have said:

 I wish to plot the region bounded by the
surfaces x = Sqrt[2  y^2] and z = Sqrt[2  y^2]
which lies in the first octant. I wish for the
plot to be limitd to only the region bounded by
the surfaces. My best attempt is

 ParametricPlot3D[{{Sqrt[2t^2+0.00001], t, u},
{u, t, Sqrt[2t^2+0.00001]}},
 {t, 0, Sqrt[2]}, {u, 0, Sqrt[2]}, ViewPoint >
{2.75, 2.4, 1}];

 However, this shows more than the region bounded
by the surfaces.

 Any ideas?

 Thanks in advance.

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