       Re: Fourier? (Q)

• To: mathgroup at smc.vnet.net
• Subject: [mg3608] Re: Fourier? (Q)
• From: hohmuth at cipserv1.physik.uni-ulm.de (Lars Hohmuth)
• Date: Thu, 28 Mar 1996 00:09:51 -0500
• Organization: Uni Ulm
• Sender: owner-wri-mathgroup at wolfram.com

```In article <4j7hq8\$af4 at dragonfly.wolfram.com> mrsma at uno.edu writes:
>From: mrsma at uno.edu
To: mathgroup at smc.vnet.net
>Subject: Fourier? (Q)
>Date: 26 Mar 1996 01:38:16 GMT

>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:=
>?Fourier
>Fourier[list] finds the discrete Fourier transform of a list
>   of complex numbers.
>In:=
>data={1,1,1,1,-1,-1,-1,-1}
>Out=
>{1, 1, 1, 1, -1, -1, -1, -1}
>In:=
>Fourier[data]
>Out=
>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.

You fell for the old

Try Fourier[N[{1,1,1,1,-1,-1,-1,-1}]] or Fourier[{1.,1.,1.,1.,-1.,-1.,-1.,-1,}]

Hope this helps,

Lars

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```

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