Recent content by Steven van Dokkum

Hallo there, I also saw the equation in Griffiths. After some searching I found a satisfactory explanation. Here is a short derivation. There is a more elaborate explanation in the attachment! This equation is the Minimal surface equation derived by Lagrange in 1762 using the Euler-Lagrange...

Thanks. I'm finishing my post up now. Maybe you can check it for errors.