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Article #192Re: Lorenz' Weather
From: GORDON ALLEN R
Date: Thu, 12 Nov 1992 15:41
Date: Thu, 12 Nov 1992 15:41
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mrmarcel@eos.ncsu.edu (MICHAEL RONN MARCELAIS) writes: >Does anybody have the equations that Lorenz used in his old weather program? >It was the first time he noticed the 'sensitive to initial conditions' >phenomenon that started research into Chaos. The program is mentioned in the >_Chaos_ book by Gleich (i think) but not the equations. dX/dt = a(Y-X) dY/dt = bX-Y-XZ dZ/dt = XY - cZ where a = 10 c = 8/3 b = control parameter (try 28) -- Allen Gordon *If the folly of but one of us was changed to* Research Associate *intelligence, and divided amongst a thousand* gordon@tramp.colorado.edu *toads, each would be more intelligent than * *Aristotle *
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Newsgroups: sci.fractals Path: arc1-ca.pugleaf.net!sparky!uunet!boulder!tramp.Colorado.EDU!gordon From: gordon@tramp.Colorado.EDU (GORDON ALLEN R) Subject: Re: Lorenz' Weather Message-ID: <gordon.721582896@tramp.Colorado.EDU> Sender: news@colorado.edu (The Daily Planet) Nntp-Posting-Host: tramp.colorado.edu Organization: University of Colorado, Boulder References: <1992Nov11.230938.12710@ncsu.edu> Date: 12 Nov 92 15:41:36 GMT Lines: 23