How to plot the following surface

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Atom
Atom 2022-6-10
评论： Sam Chak 2022-6-10
How to plot the following surface:
Which type of parametrization is required to plot it... please give me a code

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采纳的回答

Matt J
Matt J 2022-6-10
Ran in:
fsurf(@(x,y) sqrt(x.^2+y.^2)+1, [-3 3 -3 3] )
zlim([1,3])
  1 个评论
Atom
Atom 2022-6-10
编辑：Atom 2022-6-10
Would you please show the axes in such a way that the intersect at the vertex (0,0,1) of the inverted cone z-axis vertical along verted upward?

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更多回答（2 个）

Matt J
Matt J 2022-6-10
编辑：Matt J 2022-6-10
Ran in:
fimplicit3(@(x,y,z) (z-1).^2-x.^2-y.^2, [-3 3 -3 3 1 3] )
Sam Chak
Sam Chak 2022-6-10
Hi @Matt J,
Sometimes I have troubles visualizing the geometry. Can I plot like this? It should look like an inverted cone.
x = linspace(-sqrt(2), sqrt(2), 41);
y = x;
[X, Y] = meshgrid(x, y);
Z = sqrt(X.^2 + Y.^2) + 1;
surf(X, Y, Z)
  4 个评论
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Sam Chak
Sam Chak 2022-6-10
Don't mention it. Aha... now I remember. You are the one who asked how to draw a Cylindrical structure inside a Dome. It's a good learning experience.

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