An Addendum to "How to Fail at Amazon Interviews with Calculus of Variations"
Extension of the Euler-Lagrange equations to higher derivatives
Hello faithful readers! Today, I am happy to announce that we have our first reader-submitted article to post here on Maximum Effort, Minimum Reward, as an addendum to the recent How to Fail at Amazon Interviews post.
An astute reader of this extremely high-profile blog, Duncan Black, contacted me after my latest post about extensions to the Euler-Lagrange equations for functionals that depend on higher-order derivatives.
He extended his short comment into a two-page primer on higher-order Euler-Lagrange equations, which is uploaded below:
Updated shortly after posting to correct a math typo:
Enjoy!
