Rotation invariance

Описание: Rotation Invariance for Laplace's Equation

In this video, I show that the Laplacian is invariant under rotation (in 2 dimensions). It's a beautiful calculation using the rotation matrix and the Chen Lu (chain rule), and suggests to look for radial solutions.

Sequel:    • Polar Laplace  

Rotation Matrix:    • Rotation Matrix  

Check out my PDE Playlist:    • Partial Differential Equations  


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