We provide an algebraic proof of the fact that Fermat's principle of least time implies Snell's law. This proof is closer to Fermat's original approach than the usual calculus-based developments of the subject. (C) 2002 American Association of Physics Teachers.
|Translated title of the contribution||A noncalculus proof that Fermat's principle of least time implies the law of refraction|
|Pages (from-to)||1224 - 1225|
|Journal||American Journal of Physics|
|Publication status||Published - Dec 2002|
Bibliographical notePublisher: Amer Assoc Physics Teachers Amer Inst Physics
Other identifier: IDS number 619WW