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Eikonal equation

  1. Oct 17, 2007 #1
    Dear all:

    I have met a equation called Eikonal equation which is a special case of Hamilton-Jacobi equation. It is writen as:

    ||[tex]\nabla[/tex]f(x)|| = P(x)

    Could anybody explain what's the meaning of this function please? I have read it from Wiki and mathworld, but it doesn't make too much sense to me.

    Thanks in advance.
  2. jcsd
  3. Oct 21, 2009 #2
    You can find some details in Godstein's <<Classical Mechanics>> or Landau's <<THe Classical Theory of Fields>>, Good Luck!
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