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MathGroup Archive 2003

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Re: Fourier bug

  • To: mathgroup at smc.vnet.net
  • Subject: [mg39941] Re: Fourier bug
  • From: "Urijah Kaplan" <uak at sas.upenn.edu>
  • Date: Thu, 13 Mar 2003 03:00:04 -0500 (EST)
  • Organization: University of Pennsylvania
  • References: <b49l6d$esp$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

With Version "4.2 for Microsoft Windows (June 5, 2002)" I get {0. + 0.*I}.

            --Urijah Kaplan


"Nigel King" <king at dircon.co.uk> wrote in message
news:b49l6d$esp$1 at smc.vnet.net...
> The result of a Fourier transform is a list which does not manipulate
> correctly
> In[1]:=
> $Version
> Out[1]=
> "4.0 for Power Macintosh (April 20, 1999)"
> In[2]:= freq = Fourier[{1 + 2I}]; freqSave = 0.5freq; freq[[1]] = 0.5*
> freq[[1]]; freqSave - freq
>    Out[5]=
> {0.\[InvisibleSpace] + 0.5 \[
> ImaginaryI]}
>
> The result should be O. + 0. I
>
> Is this a known bug or am I doing something wrong. I have minimised the
> above code to locate the error which seems to be as a result of the
> Fourier.
>
> Nigel King
>




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