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MathGroup Archive 2004

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Polylogarithm Integration - Bis

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46093] Polylogarithm Integration - Bis
  • From: D <D at D.gov>
  • Date: Fri, 6 Feb 2004 04:15:16 -0500 (EST)
  • Organization: University of Oslo, Norway
  • References: <bvt219$ooq$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Some more example for the integral:

  Integrate[PolyLog[2, Exp[I*(x - y)]], {y, 0, 2*Pi}]

with x=5/2, I get 0 as expected. But with x=2.5 I get

19.634954084936204 + I*1.7763568394002505`*^-15

which is not close to zero! With x=-2.5 I get

  44.964016795241896 + I*1.7763568394002505`*^-15

etc.

I have only one conclusion: there is a
bug with Integrate or PolyLog or both.

Any suggestion?
D.


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