Plot in 3D a quadratic function

Question

safae safae 2011-5-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/7666-plot-in-3d-a-quadratic-function

在 MATLAB Online 中打开

Hi, I want to see this function

f(x,y,z)=x^2-y^2-z^2>=0

such that (x,y,z) in [0 1]^3.

I tried

------------------------------
[X,Y] = meshgrid([0:0.01:1]);
Z = sqrt(X.^2-Y.^2);
plot3(X,Y,Z)
grid on
------------------------------
and 
------------------------------
[x, y] = meshgrid([0:.01:1]);
z = sqrt(x.^2 - y.^2);
surf(x,y,z.^2)
------------------------------

I don't know if this is correct, any suggestion?

Thank you

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Brenden 2011-7-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/7666-plot-in-3d-a-quadratic-function#answer_15746

I am currently trying to plot 4 dimensional data in a 3D plot as well and i think one solution is to use scatter3(x,y,z,f(x,y,z)) where x y z are the coordinates and f(x,y,z) describes the size... havent done it yet but seems like it might work