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MathGroup Archive 2005

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Re: 3D plot question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg62633] Re: [mg62575] 3D plot question
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Wed, 30 Nov 2005 00:06:13 -0500 (EST)
  • Reply-to: hanlonr at cox.net
  • Sender: owner-wri-mathgroup at wolfram.com

z=x^5*y;

Compare

Plot3D[z,{x,-1,1},{y,-1,1},PlotPoints->40,Mesh->False,
    BoxRatios->{1,1,0.4}];

Plot3D[z,{x,-1,1},{y,-1,1},PlotPoints->40,Mesh->False,
    BoxRatios->{1,1,0.4},PlotRange->All];

Plot3D[z,{x,-1,1},{y,-1,1},PlotPoints->100,Mesh->False,
    BoxRatios->{1,1,0.4},ClipFill->None];


Bob Hanlon

> 
> From: "Tun Myint Aung" <tma at nus.edu.sg>
To: mathgroup at smc.vnet.net
> Date: 2005/11/29 Tue AM 04:44:05 EST
> Subject: [mg62633] [mg62575] 3D plot question
> 
> 
> Dear Mathgroup,
> 
>     When I plot a 3D plot in mathematica, I found that some part of the
> surface has been cut off in the graph. For example,
> 
>     z = x^5*y
> 
>     Plot3D[z, {x, -1, 1}, {y, -1, 1}, PlotPoints -> 40,
> 
> Mesh -> False, BoxRatios -> {1, 1, 0.4}]
> 
> Mathematica plot for z values only in the range -0.2 to 0.2. Actually
> when x=1, y=1, z value will be 1. But in the graph, the surface goes
> flat for z>0.2.Why? How can I get the graph for full range of z?
> 
>    
> 
> Best Regards,
> 
> Tun Myint Aung
> Graduate Student
> National University of Singapore
> E1A #02-18
> Kent Ridge, 119260, Singapore
> E-mail g0202015 at nus.edu.sg <mailto:g0202015 at nus.edu.sg>
> 
> 
> 


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