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- dov
- Newsgroups: comp.theory.dynamic-sys
- Subject: Re: Chaos Programs by Holden and Muhamad
- Message-ID: <1992Sep13.064937.7587@wisipc.weizmann.ac.il>
- From: dov@menora.weizmann.ac.il (Dov Grobgeld)
- Date: Sun, 13 Sep 1992 06:49:37 GMT
- Sender: news@wisipc.weizmann.ac.il
- References: <1992Sep11.134420.19454@cci632.cci.com>
- Organization: Weizmann Institute of Science, Computation Center.
- X-Newsreader: Tin 1.1 PL4
- Lines: 78
-
- dwp@cci632.cci.com (Dana Paxson) writes:
- : I am trying to track down some software written to illustrate chaotic
- : behavior as described in the book CHAOS, edited by Arun V. Holden,
- : copyright Manchester University Press 1986, published in the USA by
- : Princeton University Press. There is a note facing the inner title
- : page:
- :
-
- : "A suite of programs by M. A. Muhamad and A. V. Holden that
- : illustrate chaotic behavior in maps and in differential
- : systems is available to accompany this book: these programs
- : are available only on 40- or 80-track 5.25" discs for the
- : Acorn BBC-B computer.
- :
- : Maps of the real line, the plane and the complex plane, with
- : their associated bifurcation diagrams, strange attractors and
- : Julia sets, are presented. Trajectories, strange attractors,
- : and reconstructed strange attractors are presented for
- : nonlinear differential systems and forced systems described in
- : Chapter 2: by changing the parameters of the equations the
- : routes into chaos may be followed.
- :
- : Further information from: Chaos and Strange Attractors,
- : Manchester University Press (Software), Oxford Road,
- : Manchester M13 9PL, UK."
- :
- : Before I plunge off to the post office with letter in hand, I would
- : like to find out:
- :
- : 1) Whether these programs or more modern transformations of them
- : are available via Internet;
- :
- I have a program called "Chaos" which I ... hmmm .... copied from a friend.
- Appearently this program is supposed to be a companion program for the
- book Chaos. It runs on PC compatibles. I don't know its system requirements
- as I have really never had time to play with it.
-
- Another nice chaos chaos illustration program is FRACTINT, which though
- is limited mostly to fractals.
-
- I have myself written a standard map (can be recompiled to include any
- other mapping) program for the PC where the initial points are chosen with
- the mouse. Any area of the mapping may be zoomed with the mouse. In my last
- version I included a "single step" mode, so that it is easy to trace a
- trajectory's behaviour in the vicinity of e.g. homoclinic points.
-
- Thinking about it I have also written a driven pendulum program, but I'm
- quite sure there are better commercial alternatives for such programs. I
- have a version of this program for both the PC and in IDL.
-
- : 2) Whether the authors use Internet;
- :
- : 3) What other such tools may be available;
- :
- : 4) Whether this is the right place to post this request.
-
- Sure! :-)
-
- :
- : Thanks,
- :
- : Dana Paxson
- : Network Applications Systems Group
- : Northern Telecom Phone: 1 716 654-2588
- : 97 Humboldt Street Internet: dwp@cci.com
- : Rochester, New York 14609 CompuServe: 71201,2213
- :
- : Disclaimer: Any opinions expressed above are mine personally, and do
- : not necessarily reflect the views of my employer.
-
- --
- ___ ___
- / o \ o \
- Dov Grobgeld ( o o ) o |
- The Weizmann Institute of Science, Israel \ o /o o /
- "Where the tree of wisdom carries oranges" | | | |
- _| |_ _| |_
-
-