Announcing: Slashdot Deals - Explore geek apps, games, gadgets and more. (what is this?)

Thank you!

We are sorry to see you leave - Beta is different and we value the time you took to try it out. Before you decide to go, please take a look at some value-adds for Beta and learn more about it. Thank you for reading Slashdot, and for making the site better!



Scientists Make Item Invisible to Microwaves

wyldeling Re:Fermat's principle (219 comments)

Point. Let me clarify. Mathematically, they are the same thing. The principle of least action applies in both cases, just the path the minimizes the particular Lagrangian (T - V) (or Hamiltonian (T + V), if you prefer) differs depending on the potential energy. (Both methods are applications of the Calculus of Variations. ) Either way, it is a minimization problem and the same techniques apply. So, as far as I'm concerned, they tend to blend together.

more than 8 years ago


wyldeling hasn't submitted any stories.


wyldeling has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?