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Euler - Lagrange Question

  • #1
WannabeNewton
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Homework Statement



If L(y, y', x) = y[tex]^{2}[/tex] + y'[tex]^{2}[/tex] then find the appropriate Euler Lagrange Equation. I have absolutely no idea how to solve this. I used the differential form of the Euler Lagrange equations for a stationary action but the answer i got was nothing like the answer in the book so could anyone show me how to find the equation using the differential form?
 

Answers and Replies

  • #2
Dick
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This is perfectly straightforward. Can you show us what you got and what the books answer is?
 
  • #3
WannabeNewton
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This is perfectly straightforward. Can you show us what you got and what the books answer is?
Never mind I got it I keep forgetting the dynamical variables are actually functions and I keep treating them like variables in the equation. Stupid mistakes on my part. Sorry.
 
Last edited:

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