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Re: [Phys-l] paraxial approximation

Check out QED ch. 2 doesn't mention Fermat tho according to a skim and the index.

bc thinks maybe not an intro text?


On 2008, Apr 10, , at 14:24, James S. Marsh wrote:
but I have never seen a textbook that
emphasizes that point (except through a mention in a few texts that
Fermat's principle leads to the law of equal incidence and relection
angles for a plane mirror.)

Bob at PC
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