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Improper Integral & Mathematica

• To: mathgroup at smc.vnet.net
• Subject: [mg80577] Improper Integral & Mathematica
• From: expizzaiolo at gmail.com
• Date: Sun, 26 Aug 2007 03:11:33 -0400 (EDT)

Hi all !   :-)

how to solve:

Integrate[(e^x) / (1 + e^(2x)), {x, - Infinity, + Infinity }]

using Mathematica? I'm trying "e^x = t" but won't work...



TNX!

• Follow-Ups:
  • Re: Improper Integral & Mathematica
    • From: Murray Eisenberg <murray@math.umass.edu>