October 24, 2013: Carnival of Fractals | Oct. 23 | Oct. 25 | 2013 | FOTD Home |
Fractal
visionaries
and enthusiasts:
Today's fractal subtracts 0.2 part of Z^3 from Z^2 on each iteration
before adding C. The resulting Julibrot has two critical
values,
one at zero, the other at +3.333... The two values create the
same parent fractal -- close to normal Mandelbrot sets that are
oriented at 180 degrees from each other. Today's image lies
in
the parent fractal that results when Z is initialized at +3.333...
This parent is the Mandelbrot set rotated 180 degrees. It has
an
interesting stem extending west from East Valley and another stem
extending east from the main bud. Today's scene lies near a
larger minibrot on the eastern stem, which is along the positive X-axis
and has characteristics of the negative stem of the M-set.
The name "Carnival of Fractals" came to me as I was wondering whether
to tone down the colors. I finally decided to leave the
colors
quite brilliant, which seems to work quite well.
The art rating of an 8 shows that the image is well worth the 1-3/4
minutes required to calculate it on one of today's fireball units that
has not lost the ability to run DOS programs. Those addicted
to
things like smart phones and apps are out of luck . . . I guess . .
. But don't worry, for the web sites are always ready to
charge
to the rescue and bring enlightenment. The math rating of a 6
shows that nothing new is in the mathematical aspect of the image.
A mix of clouds and sun, with more clouds than sun, prevailed here at
Fractal Central today, while the temperature of 46F +8C kept the proper
pre-Halloween chill in the air. The fractal cats who are now
just
starting to accept each other, had little time to notice the
weather. The newcomer, who we have named Jasmine, (Jazzy for
short), is now large enough to leap onto many of the old fractal cat's
(Nico's) favorite spots. Nico is not too happy with Jazzy
taking
over his napping chairs, but he does not seem too angry
either.
The humans are mostly letting the dynamic duo work things out for
themselves, ready of course to intervene if things threaten to get out
of control.
The next FOTD will most likely be posted in about 24 hours.
Until
whenever, take care, and the United States, usually referred to as
America, is not only the greatest country on earth, but it is always
right. And any country that fails to agree had better watch
its
step.
Jim Muth
jimmuth@earthlink.net
START PARAMETER FILE=======================================
CarnivalOfFractals { ; time=0:01:45.00 SF5 at 2000MHZ
reset=2004 type=formula formulafile=basicer.frm
formulaname=MandAutoCritInZ function=ident passes=1
center-mag=+1.655267462218993/+0.00001248433946918\
/2.642538e+010/1/117.5/0 params=1/2/-0.2/3/0/0/0/0
float=y maxiter=1500 inside=0 logmap=-122
periodicity=6 mathtolerance=0.05/1
colors=000K0OJ0MI0KH0IG0GF0EE0BD08B05902600300000m\
rzT7fUFmUOeKGSA8EzKKe6PV4IL3CA16JVkmcmdzYgzzd0KK0K\
00K85AyXSt2RS1DpWyQGVzgpzzzzzQzCzhzzQ3Lc4GK2821iIe\
zDQz9Kd45nUE3jsN_aVIJFP50I30C20610iHoN8QakuPWaCGJ0\
SA0E5QjdJZUDNK6BAyxKTFEE77dUNUMHKFBA75ypHdZBKH5YCL\
M8EB47t1CtHvAUZ5FH2tW1eO1SG0E85q`3cR2RI1D9hs8sFk`A\
WI5GmyePVLIKXsiA`U6IF3J0AC06603C5E8pl6b_4QO2DCUUXF\
FGAtO6aG3J85aZ3SQ2JH1984SA2E5BtK7aD3J6A7mzzXzzGzzL\
zzEzz7zzvzzgzzTzzEzzdzzpzzQzzzzzVzz6zz4zz3zz2zz1zz\
VzzKzzAzzzzzjzzVzzFzzvzzTzzpzzZzzHzz`zzUzzUzzUzzUz\
zUzzUzzUzzUzzUzzUzzUzzUzzUzzUzzUzzUzzczzczzczzczzc\
zzczzczzczzczzczzczzczzczzczzczzczzzzzzzzzzzzzzzzz\
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz\
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz\
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz\
zzzzzzzzzzzzzzzzzzzzzzzzz }
frm:MandAutoCritInZ {; Jim Muth
a=real(p1), b=imag(p1), d=real(p2), f=imag(p2),
g=1/f, h=1/d, j=1/(f-b), z=(((-a*b*g*h)^j)+(p4)),
k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel):
z=k*((a*(z^b))+(d*(z^f)))+c,
|z| < l }
END PARAMETER FILE=========================================