Talk:PDE:Laplaces Equation

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Solution in 3D co-ordinate system.

I think that the solution to the following Laplace equation in spherical co-ordinate system is missing.

\Delta u={\frac  {1}{r^{2}}}(r^{2}u_{r})_{r}+{\frac  {1}{r^{2}sin\theta }}(sin\theta u_{\theta })_{{\theta }}+{\frac  {1}{r^{2}(sin\theta )^{2}}}u_{{\phi \phi }}=0\,

Also, as this is the comments section, the site is great. My appreciations. :)