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Link:
http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/prism.html
On 2010, Sep 17, , at 12:58, Bernard Cleyet wrote:
p.s. when N< 1 is substituted in the formula for prism min. deviation, the deviation is negative, as expected. BTW, I couldn't solve the eq.** for the deviation, and didn't find by googling -- anyone know?
** Prisms