- #1
tahlaskerssen
- 10
- 0
So I'm just having a bad night about Lagrangian and Hamiltonian mechanics and I was deriving them all over again and just wanted to try to differenciate the derivation with respect to velocity instead of x (just for fun)
But I kind of struggled with the math and I just want to get this right with the chain rule
If F is a function of x and V and V a function of x as well and I want to differentiate F with respect to V
dF/dV = dF/dx . dx/dV
Is it really this way?
I kind of took the formula from the post at the bottom here: -> https://www.physicsforums.com/showthread.php?t=282120
But i don't really understand what that comes from.. is ti true the equations that guy wrote? I've never seen the chain rule that way
But I kind of struggled with the math and I just want to get this right with the chain rule
If F is a function of x and V and V a function of x as well and I want to differentiate F with respect to V
dF/dV = dF/dx . dx/dV
Is it really this way?
I kind of took the formula from the post at the bottom here: -> https://www.physicsforums.com/showthread.php?t=282120
But i don't really understand what that comes from.. is ti true the equations that guy wrote? I've never seen the chain rule that way
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