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A integral

• To: mathgroup at smc.vnet.net
• Subject: [mg113198] A integral
• From: liblenovo <liblenovo at gmail.com>
• Date: Mon, 18 Oct 2010 05:47:47 -0400 (EDT)

When I input:

  Integrate[E^(I k x), {x, -\[Infinity], +\[Infinity]}]

It comes out:

  Integrate::idiv: Integral of E^(I k x) does not converge on {-\[Infinity],\[Infinity]}

But I hope the result is:
  DiracDelta[k]

Does anyone know how to do it?

• Follow-Ups:
  • Re: A integral
    • From: Christopher Arthur <aarthur@tx.rr.com>