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MathGroup Archive 1998

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Re: FFT

  • To: mathgroup at smc.vnet.net
  • Subject: [mg12834] Re: FFT
  • From: Sean Ross <seanross at worldnet.att.net>
  • Date: Fri, 12 Jun 1998 18:15:11 -0400
  • References: <199806100704.DAA13650@smc.vnet.net.>
  • Sender: owner-wri-mathgroup at wolfram.com

norman at galois.uoregon.edu wrote:
> 
> Does anyone know where i can find a package implementing the Fast
> Fourier Transform (discrete version) in Mathematica?
> 
> Thanks,
> 
> Bill

It is in the Calculus`FourierTransform` package.

Be aware that this is a standard fft such as the EE folks use and does
not obey the same set of theorems that Fourier Transforms (Central
Ordinate theorem,Scaling, etc.) are supposed to obey, so typically
there is a little bit of work you have to do on the transformed results
before they are quantitatively useful for anything.


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