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MathGroup Archive 2004

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Drawing specific contours in a 3D Surface Plot?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46002] Drawing specific contours in a 3D Surface Plot?
  • From: Carsten Aulbert <carsten at welcomes-you.com>
  • Date: Mon, 2 Feb 2004 05:20:48 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

is it possible to create a 3d plot of a smooth function f[x,y] (e.g. via 
Plot3D[...]) and mark specific contour levels in this plot?

To add some flesh:
f[t_]:= Exp[-t/2];
g[u_,v_,w_]:=BetaRegularized[u, v + 1, w - v];

Plot3D[g[f[x], y,200], {x,0,10}, {y,0,200}]

In this plot (with Mesh->False and increased PlotPoints) I'd like to mark 
the contours at 0.5, 0.5+/- 0.3413.

Is this possible?

Thanks for any help/link

Carsten


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