[Solved] What can I use MATLAB function “Plot3D”? [closed]

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Probably the “mesh” is the one that will do for you.
See the documentation for this for more, but you can try:

x=linspace(….);y=…

[x,y]=meshgrid(x,y);

z= x^2 – 4*x + y^2 – y – x.*y

mesh(x,y,z)

solved What can I use MATLAB function “Plot3D”? [closed]