Surface normal in 3-D

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Erdem Aktürk
Erdem Aktürk le 14 Jan 2023
Réponse apportée : Chris le 24 Fév 2023
How can I show the normal of surfaces in3-D plotting?
I use symbolic equations.
surface=str2sym(input("surface equation:","s"));
surface_EQ=symfun(surface,[x,y,z])
s=fimplicit3(surface_EQ,"FaceAlpha",0.6);

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Réponses (2)

Star Strider
Star Strider le 14 Jan 2023
Although I doubt this would work with with symbolic plots without some additional coding, the surfnorm function would be worth exploring. (I have never worked with it with symbolic plots.)
Chris
Chris le 24 Fév 2023
I haven't tested it since it seems to need a more recent version of MATLAB, but there's a tutorial here: https://au.mathworks.com/help/symbolic/find-tangent-plane-and-normal-line.html

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