Article View: comp.dsp
Article #820Re: Mystery FFT Code...
From: Paul T Russell
Date: Mon, 11 Jun 1990 14:09
Date: Mon, 11 Jun 1990 14:09
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970 bytes
This looks very much like the code from "Numerical Recipes in Pascal".
(Vetterling et al ?). The arrays consist of alternate real, complex
values and start at an indexs of 1, so array[1] = x[0].re, array[2] =
x[0].im, array[3] = x[1].re, etc...
Incidentally, I think they have the signs for the FT and inverse FT
the wrong way round - can anyone confirm this ?
//Paul
--
Paul Russell, Department of Experimental Psychology
University of Sussex, Falmer, Brighton BN1 9QG, England
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcsun!ukc!icdoc!syma!paulr From: paulr@syma.sussex.ac.uk (Paul T Russell) Newsgroups: comp.dsp Subject: Re: Mystery FFT Code... Message-ID: <2846@syma.sussex.ac.uk> Date: 11 Jun 90 14:09:27 GMT References: <30678@cup.portal.com> Organization: University of Sussex Lines: 15