- #1

Gavroy

- 235

- 0

does anybody here know a proof for the chain rule:

[tex]\delta S= \frac{dS}{dx} \delta x[/tex]

and for the formulation:

[tex]\delta S= p \delta x[/tex]

=> [tex]\frac{dS}{dx}= p [/tex]

it would be totally sufficient, if anyone here knows(e.g. a weblink) where one could see this proof.