       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)
• 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