MathGroup Archive 2008

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Re: Request

On Mar 13, 2008, at 2:34 AM, Billy Thompson wrote:

> Hi,
> I am Billy, a research assistant, and i have started using  
> Mathematica  at the beginning of my research. However i  wanted to   
> know, if you people can please help me, if there is an  
> implementation of the Fast Fourier Transform (FFT) in Mathematica.  
> I work with large matrix systems and i need to multiply matrices  
> and vectors using the FFT. I would sincerely be immensely grateful  
> if you could help me and i am waiting for an answer in the near  
> future.

Look up the Fourier and InverseFourier functions in Help.



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