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Contour integration

  • To: mathgroup at
  • Subject: Contour integration
  • From: bill at
  • Date: Tue, 22 Jun 93 13:47:52 EDT

NeXT Computer OS 2.1
Mathematica V2.1


Dear MathGroup, 

Does anybody know why the integration routines are failing here?:

X[z_] := 1/(1 - a z^-1)


ContourIntegral = Integrate[X[E^(I w)] E^(I w n), {w, -Pi, Pi}] / (2  
(* no answer given *)

              I n w
Integrate[-------------, {w, -Pi, Pi}]
                   -I w
          1 - 0.5 E
                 2 Pi

Jon Dattorro, Ensoniq Corp.
jond at

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