; Date: Mon, 10 Sep 2012 08:52:20 -0400 ; From: Jim Muth ; Subject: [Fractint] FOTD 08-09-12 (Truncated Rectangle [8]) ; Id: <1.5.4.16.20120910085607.38ffd7f0@earthlink.net> ; --------- ; ; FOTD -- September 08, 2012 (Rating 8) ; ; Fractal visionaries and enthusiasts: ; ; Today's image is part of the Julia set of a rectangle in the ; Z^(2.003)+C Mandelbrot set. Surprisingly, there is no rectangle ; at the center of the image, but rather an octagon with in-curved ; sides. The Julia set of a rectangle would normally be expected ; to be another rectangle, but fractals, like so many theories of ; modern physics, do not always do the intuitive things. For some ; reason, objects that appear as rectangles in their Mandelbrot ; aspect appear as octagons when viewed in their broader Julia ; aspects. ; ; This Julia doubling is not actually so surprising, considering ; that the Julia sets of the Mandelbrot radical 'stars' have ; double the number of arms as the Mandelbrot stars themselves. ; Thus, the Julia set of the two-branched star located around ; -1.543 on the main spike of the M-set has four main branches. ; ; The name "Truncated Rectangle" is another way of describing an ; "Octagon", which to be more precise, is a truncated square. ; ; I rated the image at an 8, due mostly to the coloring, which is ; a combination of my efforts and a random shot of the Fractint ; program. ; ; The calculation time of 4 minutes borders on slowness, but at ; least IMO, the image is worth the effort. And the web sites can ; remove even most of that effort. ; ; So take life easy. View the finished image at: ; ; ; ; And experience the thrill of high definition at: ; ; ; ; Finally, check the past at: ; ; ; ; The pleasant late summer weather took a break here at Fractal ; Central today, when heavy clouds moved in, followed by lively ; thunder-showers. The temperature of 84F 29C felt warmer than ; usual due to the high humidity. The fractal cats got into a bit ; of a spat when they both wanted to lie on the table beside my ; favorite chair, but reason finally prevailed and they agreed to ; share the space with tails thrashing in unison. The next FOTD ; is soon to be posted. Until whenever that might be, take care, ; and if we only go around once in life, as conventional wisdom ; says, then when do we get to use the lessons we have struggled ; so hard to learn during our time on earth? ; ; ; Jim Muth ; jimmuth@earthlink.net ; ; ; START PARAMETER FILE======================================= TruncatedRectangle { ; time=0:04:00.00 SF5 at 2000MHZ reset=2004 type=formula formulafile=basicer.frm formulaname=SliceJulibrot4 center-mag=-0.000021470\ 16991775/+0.00000106606499224/269396.1/1/-12.5/0 params=90/0/90/0/-1.743492647282116/2.074078440319\ 529e-008/0/0/2.003/0 float=y maxiter=3200 inside=0 logmap=994 periodicity=6 mathtolerance=0.05/1 colors=000BBCFFHIINLMSOR`RWfUZmW`wYdz`gzcjzfmzirzm\ vzrzzmszhmzccpZUfVKUSJKPJPMIVJI_GHeDHjccEYgOTjXOmf\ JpoLiiNbdOW_QQURJPTCKU6FfDScLO`TLY`HVhESpAQw7cVMp3\ `bVfQvkPqlOmlNimNemQhlSkkUnjWhfXcbYZZ_UV`PRaKNZLKW\ LHTMERMBON8LN5IO2GO0HL9IIIJFRKC_LAhXDihGjsJkmPhhVf\ c`dZfbnLPkQUhVYf_acce`hjZmnWrrUvvdbmoJdkIXgIPcIH_I\ AWNHSRNPWTL_ZIddEhjBlpLngVoZdpQmqInkGofFpaEqXDrRBs\ MAtH9uC8zSgzVbzYYz`TzcPzfKziFzkBzfAzaAzXAzSAzNAzJA\ zSHz`NgiUfr__iSTaLMTEGL7KJEOHKRGRVEXYDb`9fc6if3mh0\ pnXHmbPlgXlldkqlkvthuuftvcswarxZqyXqyUrwSsuQtsOuqM\ voKwnNsoQppTmqVirYfs`ctb`ucdqdgmejifnegqahtYiwUakP\ U_LUOKECC618G4AP7BZ9DgCEpEFfMUXUhN`wO`rO`nO`jO`fO`\ bPaZQbWRcSScPUvN`xcfzs`uzWqpRmoLinGemBal6YkFxrLpqQ\ ipVao_VndNmiGln8ks1kt3kt4ku6ku7ktDhsJesPcrV`r`ZqfW\ qlUhiY`gaSeeKciBam3_p7XoAUnDRmGOmJLlMIkPFjSDjTAfU7\ bV5ZW2VW0SX4VGJV5PK8JEBE8 } frm:SliceJulibrot4 {; draws all slices of Julibrot pix=pixel, u=real(pix), v=imag(pix), a=pi*real(p1*0.0055555555555556), b=pi*imag(p1*0.0055555555555556), g=pi*real(p2*0.0055555555555556), d=pi*imag(p2*0.0055555555555556), ca=cos(a), cb=cos(b), sb=sin(b), cg=cos(g), sg=sin(g), cd=cos(d), sd=sin(d), p=u*cg*cd-v*(ca*sb*sg*cd+ca*cb*sd), q=u*cg*sd+v*(ca*cb*cd-ca*sb*sg*sd), r=u*sg+v*ca*sb*cg, s=v*sin(a), esc=imag(p5)+9 c=p+flip(q)+p3, z=r+flip(s)+p4: z=z^(real(p5))+c |z|< esc } ; END PARAMETER FILE========================================= ; ; ; ; _______________________________________________ ; Fractint mailing list ; Fractint@mailman.xmission.com ; http://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint ;