Hi everyone, I need help with a derivation I'm working on, it is the differentiation of the norm of the gradient of function F(x,y,z):
\frac{∂}{∂F}(|∇F|^{α})
The part of \frac{∂}{∂F}(\frac{∂F}{∂x}) is bit confusing.
(The answer with α=1 is div(\frac{∇F}{|∇F|}), where div stands for...