- #1

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[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?

- Thread starter Nusc
- Start date

- #1

- 753

- 2

[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?

- #2

HallsofIvy

Science Advisor

Homework Helper

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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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