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wilsonnl
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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):
[itex]\frac{∂}{∂F}[/itex](|∇F|[itex]^{α}[/itex])
The part of [itex]\frac{∂}{∂F}[/itex]([itex]\frac{∂F}{∂x}[/itex]) is bit confusing.
(The answer with α=1 is div([itex]\frac{∇F}{|∇F|}[/itex]), where div stands for divergence.)
Any ideas? many thanks!
[itex]\frac{∂}{∂F}[/itex](|∇F|[itex]^{α}[/itex])
The part of [itex]\frac{∂}{∂F}[/itex]([itex]\frac{∂F}{∂x}[/itex]) is bit confusing.
(The answer with α=1 is div([itex]\frac{∇F}{|∇F|}[/itex]), where div stands for divergence.)
Any ideas? many thanks!
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