Article View: sci.fractals
Article #427Re: 1-D M-set
From: Jay R. Hill
Date: Fri, 20 Aug 1993 22:21
Date: Fri, 20 Aug 1993 22:21
26 lines
2119 bytes
2119 bytes
In article <1993Mar15.034914.12321@vms.eurokom.ie> David Doff writes:
>Consider the 1-dimensional M-set. It is instructive (and a lot faster) to
>compute the length of the 1-D M-set. Of course, by inspection, the length
>is 2.25. However, if you do it by pixel counting, the length converges to
>a value close to 1.70 as the value of imag(c) tends to zero.
>This makes sense, if you think of the left hand part of the real line as
>a Cantor-like set. This also indicates that the regions of Chaos occupy
>a total length of about 0.55 and only this amount of the real line is
>infinitely thin.
I still have not seen an answer to: What portion of the real line has
periodic orbits vs. chaotic. The periodic parts are in the cardioids and
buds. Since we know the Feigenbaum point is -1.401155, from 0.25 to
-1.401155, 1.651155 is definately periodic. So an upper bound of .598845
is infinitely thin or 26.7% of (-2 to 0.25).
Is there a known result? Is the chaotic length definitely greater than 0?
Warmly,
Jay 'Not tonight honey, I'm looking for a real chaotic point' Hill
--
{ hilljr@jupiter.saic.com } begin writeln(3*ln(640320)/sqrt(163):17:15) end.
void main(){double sqrt(), y=1/sqrt(2.), a=.5, m=1,z; int n=0;
for(;m*=2,z=sqrt(1-y*y),y=(1-z)/(1+z),a=a*(1+y)*(1+y)-m*y,n<4;n++);
printf("%17.15lf\n",1/a);}
Technical Details
Message-ID:
<1993Aug20.222118.24905@ast.saic.com>Path:
arc1-ca.pugleaf.net!gmd.de!xlink.net!howland.reston.ans.net!usc!news.service.uci.edu!unogate!mvb.saic.com!ast.saic.com!jupiter!hilljrReferences:
<1993Aug16.194800.301@cs.uah.edu> <CBws90.K8B@cid.aes.doe.ca> <1993Aug19.181352.22494@ast.saic.com>Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10ed18,4141047fe45fffb X-Google-Attributes: gid10ed18,public X-Google-Thread: ff06e,9bcbd5b5026a7118 X-Google-Attributes: gidff06e,public X-Google-ArrivalTime: 1993-08-20 15:37:26 PST Newsgroups: sci.fractals,bit.listserv.frac-l Path: arc1-ca.pugleaf.net!gmd.de!xlink.net!howland.reston.ans.net!usc!news.service.uci.edu!unogate!mvb.saic.com!ast.saic.com!jupiter!hilljr From: hilljr@jupiter.saic.com (Jay R. Hill) Subject: Re: 1-D M-set Message-ID: <1993Aug20.222118.24905@ast.saic.com> Followup-To: sci.fractals Lines: 26 Sender: news@ast.saic.com Organization: SAIC References: <1993Aug16.194800.301@cs.uah.edu> <CBws90.K8B@cid.aes.doe.ca> <1993Aug19.181352.22494@ast.saic.com> Date: Fri, 20 Aug 1993 22:21:18 GMT