MathGroup Archive: October 2002 [00568]

[Date Index] [Thread Index] [Author Index]

Fourier transform of the delta function

To: mathgroup at smc.vnet.net
Subject: [mg37468] Fourier transform of the delta function
From: Matt Flax <flatmax at ieee.org>
Date: Thu, 31 Oct 2002 04:42:04 -0500 (EST)
Sender: owner-wri-mathgroup at wolfram.com

Hello,

Any suggestions for the evaluation of the following ?
FourierTransform[
    KroneckerDelta[f-(-1 + 10^(n T/c)/b)], f, t]

or even this :
FourierTransform[
    DiracDelta[f-(-1 + 10^(n T/c)/b)], f, t]  

Mathematica simply spits back the same input.

thanks
Matt
-- 
http://mffm.darktech.org

WSOLA TimeScale Audio Mod  : http://mffmtimescale.sourceforge.net/
FFTw C++                   : http://mffmfftwrapper.sourceforge.net/
Vector Bass                : http://mffmvectorbass.sourceforge.net/
Multimedia Time Code       : http://mffmtimecode.sourceforge.net/

Prev by Date: When does Integrate give incorrect results?

Next by Date: The equivalent of FindRoot for an interpolating function

Previous by thread: When does Integrate give incorrect results?

Next by thread: The equivalent of FindRoot for an interpolating function