 Laplace equation in cylindrical coordinates

ID: laplace-equation-in-cylindrical-coordinates

In cylindrical coordinates

(r, θ, z)

\frac{1}{r} \frac{\partial}{\partial r} (r \frac{\partial ϕ}{\partial r}) + \frac{1}{r ^{2}} \frac{\partial ^{2} ϕ}{\partial θ ^{2}} + \frac{\partial ^{2} ϕ}{\partial z ^{2}} = 0.

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