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RE: Does your machine also FFT like mine?


From: Ted Harding
Subject: RE: Does your machine also FFT like mine?
Date: Mon, 11 May 1998 17:08:19 +0100 (BST)

On 11-May-98 Dirk Laurie wrote:
> On my Linux/586 machine, I get
> 
>> ifft(fft([1 1 0 0 1]))
> ans =
>     1.0000e+00    1.0000e+00   -1.4682e-08   -1.4682e-08    1.0000e+00
> 
> This is only single precision accurate.  Unfortunately the other
> machines I have access to have the same architecture and use the
> same binary and not surprisingly gives the same result.
> 
> What happens on your machine?
> 
> Dirk

With S.u.S.E. Linux 5.1, Pentium,
Octave, version 2.0.11 (i586-pc-linux-gnulibc1).
Copyright (C) 1996, 1997, 1998 John W. Eaton.
This is free software with ABSOLUTELY NO WARRANTY.
For details, type `warranty'.

octave:1> ifft(fft([1 1 0 0 1]))
ans =

   1.0000e+00   1.0000e-00   7.4583e-16   7.4583e-16   1.0000e-00

octave:2> 
Ted.

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E-Mail: (Ted Harding) <address@hidden>
Date: 11-May-98                                       Time: 17:08:19
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