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MathGroup Archive 1996

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help!! Plot3D of ellipsoid

  • To: mathgroup at smc.vnet.net
  • Subject: [mg4908] help!! Plot3D of ellipsoid
  • From: sab18 at po.cwru.edu (Seth)
  • Date: Fri, 4 Oct 1996 00:17:43 -0400
  • Organization: Case Western Reserve University, Cleveland OH (USA)
  • Sender: owner-wri-mathgroup at wolfram.com

I am trying to get a 3-d plot of an ellipsiod, of the equation

	(x^2/a^2) + (y^2/b^2) + (z^2/c^2) = 1 

manipulating the equation I can get

	z = (c^2 (1- (x^2/a^2) - (y^2/b^2)))^1/2

then, with the constants defined, I write

	Plot3D[z,{x,0,a},{y,0,b}]

Mathematica then spits out a bunch of errors


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