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Homework Help: Greens theorem

  1. Sep 3, 2008 #1
    1. The problem statement, all variables and given/known data


    3. The attempt at a solution

    I don't know how to choose u. I presume we look in 2D; I thought u should look something like:

    [tex]u = \left[ \begin{array}{c} \psi \\ \psi \end{array} \right] [/tex]

    and [tex] c= \phi [/tex] but that isn't correct.
  2. jcsd
  3. Sep 3, 2008 #2


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    Homework Helper

    How about picking two vector fields? Pick u=(psi,0) for the first part and u=(0,psi) for the second part.
  4. Sep 4, 2008 #3
    Yes of course, thanks Dick!
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