How to plot cos(x) + cos(y) + cos(z) = 0

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How can I plot
cos(x) + cos(y) + cos(z) = 0
In 3D plane (the expected 3D model is attached )
and I also want to know how to put my own contour on the surface

Accepted Answer

Ameer Hamza
Ameer Hamza on 4 Nov 2020
Try fimplicit3()
fimplicit3(@(x,y,z) cos(x) + cos(y) + cos(z))

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