# How to plot a 3D plot from three linear vectors?

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Sadiq Akbar on 21 Feb 2022
Commented: Matt J on 21 Feb 2022
I have three vectors x ,y and z. The size of all of them are same.But all of them are 1D arrays. I want to draw a 3D plot from them. Let me give it in code form as below:
x=linspace(0,180,100);% 1st vector
y=x;% 2nd vector
z=rand(1,100)*1e-7;% 3rd vector
I tried to convert both x and y to 2D vectors as below:
[x,y]=meshgrid(x,y);
But when I use the surface command or mesh command, it gives me error as:
Z must be a matrix, not a scalar or vector.
What to do?

Matt J on 21 Feb 2022
Edited: Matt J on 21 Feb 2022
x=linspace(0,180,100);% 1st vector
y=x;% 2nd vector
z=rand(1,100)*1e-7;% 3rd vector
line(x,y,z); view(3)
##### 2 CommentsShowHide 1 older comment
Matt J on 21 Feb 2022
The 2nd problem is a little bit different from above.
If your first problem has been solved, please Accept-click the answer. If you have a new problem, please post it in a separate thread.

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