Numerical Recipes FFT routine bugs ???

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Article #138

#138

From: Ed Croteau
Date: Fri, 24 Jul 1992 19:26

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Does anyone have any information on the "FOUR1.C" routine in the
Numerical Recipes in C book? I believe that the routine as printed
(and on a source disk) does not properly compute the FFT (try a 
simple real SIN wave and examine the imaginary).  Please let me know
if I am wrong about this but it seems like the imaginary part is
frequency reversed or something similar.  Please respond via email
if you have information or would like to hear of the results of this
posting.  Thanks.

P.S. How can I get in touch with the company? Their Cambridge address
is no longer valid (or at least no phone listing).

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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu!croteau
From: croteau@ccwf.cc.utexas.edu (Ed Croteau)
Newsgroups: comp.dsp
Subject: Numerical Recipes FFT routine bugs ???
Message-ID: <76535@ut-emx.uucp>
Date: 24 Jul 92 19:26:34 GMT
Sender: news@ut-emx.uucp
Reply-To: croteau@ccwf.cc.utexas.edu (Ed Croteau)
Organization: The University of Texas at Austin, Austin TX
Lines: 13
Originator: croteau@doc.cc.utexas.edu