Re: Fourier? (Q)
- To: mathgroup at smc.vnet.net
- Subject: [mg3662] Re: [mg3602] Fourier? (Q)
- From: Jesus ROJO <jesroj at wmatem.eis.uva.es>
- Date: Tue, 2 Apr 1996 21:56:02 -0500
- Mailer: Elm [revision: 70.85]
- Sender: owner-wri-mathgroup at wolfram.com
Your message:
>
> greetings:
>
> when i tried to go through the Fourier examples as per pgs 679-681 in the Mma bible;
>
> Mma kindly returned the following:
> In[65]:=
> ?Fourier
> Fourier[list] finds the discrete Fourier transform of a list
> of complex numbers.
> In[66]:=
> data={1,1,1,1,-1,-1,-1,-1}
> Out[66]=
> {1, 1, 1, 1, -1, -1, -1, -1}
> In[67]:=
> Fourier[data]
> Out[67]=
> Fourier[{1, 1, 1, 1, -1, -1, -1, -1}]
>
> i then tried the example on a PowerMac, NeXT, RS6000 and got the same reply.
>
> what am i missing here?
>
> sincerely,
> m. r.
>
>
Hello,
after some essays, I have found that the key
is in the integer values in the list 'data'.
If you changes '1' for '1.' in 'data' you'll
find the expected answer. Why ?. I don't know.
Jesus ROJO
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