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Residue theorem

  1. Nov 23, 2007 #1
    How do you get the residue of this expression:

    [tex] \frac{1}{(e^z - k)} [/tex] where k is a constant.
  2. jcsd
  3. Nov 23, 2007 #2
    In what contour? And what is k? Note if k is zero then it becomes 1/e^z which is analytic. But if k!=0 then there is a singularity which depends on the contour.
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