User:Confocal/Test3

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The lensmaker's equation relates the focal length of a simple lens with the spherical curvature of its two faces:[1]

1f = (n − 1) (1R1 − 1R2 + (n − 1) dn R1 R2)

Could there be a CA like this?

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Could there be a CA like this?
  1. ↑ https://demonstrations.wolfram.com/LensmakersEquation/
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