Meaning of Derivative Notation in Denominator

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    Derivative Notation
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SUMMARY

The discussion centers on the interpretation of the derivative notation \(\frac{\partial F(x)}{\partial(\partial f(x)/\partial x)}\), where a derivative appears in the denominator. The expression simplifies to \(\frac{\partial F(x)}{\partial u}\) by letting \(u = \frac{\partial f(x)}{\partial x}\). Understanding this notation requires familiarity with the functions \(F(x)\) and \(f(x)\).

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  • Knowledge of functions \(F(x)\) and \(f(x)\)
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intervoxel
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What is the meaning of

\frac{\partial F(x)}{\partial(\partial f(x)/\partial x)}

in which a derivative appears in place of the variable x in the denominator?

Anyone, please?
 
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Let u = ∂f(x)/∂x. Then the expression is ∂F(x)/∂u. In order to make sense out of it you need to know F(x) and f(x).
 
Thank you.
 

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