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FourierTransform on UnitStep

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  • Subject: [mg14449] FourierTransform on UnitStep
  • From: Normand Leclerc <nospam at>
  • Date: Wed, 21 Oct 1998 03:32:46 -0400
  • Organization: Colba Net Montreal
  • Sender: owner-wri-mathgroup at


  I am a new EE Student and I'm just begining with Fourier transforms. I
was using Mathematica at school when I saw something I just couldn't
figure out.

  FourierTransform[UnitStep[t],t,w] gives me I/w + pi DiracDelta[w]

  I learned that it should give me pi DiracDelta[w]-I/w or 1/Iw + pi

Am I missing something or is there a bug in the FourierTransform
package?  They are using Mathematica 3.0

Normand Leclerc
lecn1306 at

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