ReflectionLaw:

Path: Imaging/Optics

% Apply the vector form of the law of reflection.
  The incoming ray points at the surface.
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   Form:
   u2 = ReflectionLaw( u1, n )
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   ------
   Inputs
   ------
   u1              (3,1) Incoming ray
   n               (3,1) Normal

   -------
   Outputs
   -------
   u2              (3,1) Reflected ray

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   Reference: Hanrahan, P. "Refraction"
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Children:

Math: Linear/Unit

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