Drawing a 3-D graph, endpoint issues

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verzhen Ligai 2016-5-8

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https://ww2.mathworks.cn/matlabcentral/answers/283135-drawing-a-3-d-graph-endpoint-issues

评论： Star Strider 2016-5-8

采纳的回答： Star Strider

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Hello everyone,

I asked a question similar to this under the subject of linspace but I am re-posting it because this time I wanted to attach the photos. So that you can see clearly what my issue is.

The black/white graph(3dd.jpg) is what I am trying to draw and the graph in color(3d.jpg) is what I have drawn. I am not sure what I must modify to be able to successfully draw the black/white graph(3dd.jpg). I tried modifying the linspace values but I still couldn't achieve my goal.

Following is my code,

x=linspace(-2,2); 
y=linspace(-2,2); 
[X,Y] = meshgrid(x,y); 
Z=(X.^2+3*Y.^2)*exp(-X.^2-Y.^2); 
meshz(X,Y,Z)

Thank you very much.

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Star Strider 2016-5-8

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Please clarify what you want.

This code:

x=linspace(-2,2); 
y=linspace(-2,2); 
[X,Y] = meshgrid(x,y); 
Z=(X.^2+3*Y.^2).*exp(-X.^2-Y.^2); 
meshz(X,Y,Z)

produces this plot:

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verzhen Ligai 2016-5-8

Nope! I realized what I did wrong! Thank you so much!!!!!

Star Strider 2016-5-8

My pleasure!

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