Theorem that says partial and ordinary derivatives are mixed?

  • Thread starter Nusc
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  • #1
753
2
F(q_1,...,q_n,t)

[tex]
\frac{d}{dt}\frac{\partial}{\partial \dot{q}} \frac{dF}{dt} = \frac{\partial}{\partial q} \frac{dF}{dt}
[/tex]

what's the theorem that says partial and ordinary derivatives are mixed?
 

Answers and Replies

  • #2
HallsofIvy
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That's, not, strictly speaking, a mathematics question. The equation you have is a specific physics or fluid dynamics formalism. It's not a matter of a "theorem", it is a matter of notation. And, again, it is physics notation, not mathematics.
 

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