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Simplification of definite integral?

• To: mathgroup at smc.vnet.net
• Subject: [mg40673] Simplification of definite integral?
• From: "Dr. Wolfgang Hintze" <weh at snafu.de>
• Date: Sun, 13 Apr 2003 02:17:27 -0400 (EDT)
• Reply-to: weh at snafu.de
• Sender: owner-wri-mathgroup at wolfram.com

How do I get a satisfactory result from mathematica for this function

f[d]:=Integrate[Sin[x-d]/(x-d) Sin[x+d]/(x+d),{x,-Infinity,Infinity}]

I tried

f[d]//ComplexExpand

and several assumptions but I didn't succeed. Any hints?

Wolfgang

• Follow-Ups:
  • Re: Simplification of definite integral?
    • From: Vladimir Bondarenko <vvb@mail.strace.net>