- #1
Ahmes
- 78
- 1
Hello,
I recently began an Analytical Mechanics course and find it impossible to understand how to derive Euler-Lagrange formula from the principle of least action.
There is actually one step I can't understand, how we get from:
I WOULD HAVE USED LaTeX HERE BUT IT'S NOT POSSIBLE TO SEE IT IN "PREVIEW POST"!
I DON'T TRUST I CAN SUBMIT WITHOUT ERRORS.
Can anyone look at the image and explain how they got to the expression below? and I'm not sure I know what exactly is the meaning of δ (delta that is)...
Thanks in advance.
I recently began an Analytical Mechanics course and find it impossible to understand how to derive Euler-Lagrange formula from the principle of least action.
There is actually one step I can't understand, how we get from:
I WOULD HAVE USED LaTeX HERE BUT IT'S NOT POSSIBLE TO SEE IT IN "PREVIEW POST"!
I DON'T TRUST I CAN SUBMIT WITHOUT ERRORS.
Can anyone look at the image and explain how they got to the expression below? and I'm not sure I know what exactly is the meaning of δ (delta that is)...
Thanks in advance.