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Delta function could not be got when delta function is the answer

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64322] Delta function could not be got when delta function is the answer
  • From: "PengYu.UT at gmail.com" <PengYu.UT at gmail.com>
  • Date: Sat, 11 Feb 2006 03:32:51 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Sum[E^(-2*Pi*I*n*p*k), {n, -Infinity, Infinity}]

The above summation should give an delta function. However, 0 is given
by Mathematica 5.0. Is it a bug. Is there any workaround to get the
delta function?

Thanks,
Peng


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