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MathGroup Archive 2007

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Re: 3DPlot in Mathematica 6

  • To: mathgroup at
  • Subject: [mg80344] Re: [mg80312] 3DPlot in Mathematica 6
  • From: Curtis Osterhoudt <cfo at>
  • Date: Sat, 18 Aug 2007 05:34:49 -0400 (EDT)
  • Organization: LANL
  • References: <>
  • Reply-to: cfo at

On Thursday 16 August 2007 23:50:41 Dr. Van Nostrandt wrote:
> Hi,
> I use Mathematica 6 on a PC (Intel Celeron CPU 2.6 GHz, 256 RAM) under
> Ubuntu 7.04. When I run the command Plot3D[f,options] it doesn't display me
> the function graph if f has a complicated form. If f it's enough simple,
> the function is displayed. For example the command
> Plot3D[Sin[x+Sin[y]],{x,-10,10},{y,-10,10}] shows me the graph, but already
> for Plot3D[2 [Sin[x+Sin[y]]],{x,-10,10},{y,-10,10}] I can't see it, just
> the 3D box, where should be the graph. Does anyone know the reason?
> Thank You in advance!

Check your syntax.  :)   "2" is not a function, yet the way the function is 
typed---with the square brackets to imply multiplication---makes Mathematica 
think that "2" should take the argument of Sin[x+Sin[y]]. Try 

Plot3D[2*Sin[x + Sin[y]], {x, -10, 10}, {y, -10, 10}]

instead, or 

Plot3D[2(Sin[x + Sin[y]]), {x, -10, 10}, {y, -10, 10}]


Plot3D[2 Sin[x + Sin[y]], {x, -10, 10}, {y, -10, 10}] .

         Hope that helps!

Curtis Osterhoudt
cfo at
PGP Key ID: 0x4DCA2A10
Please avoid sending me Word or PowerPoint attachments

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