August 3, 2012: Dabbling in Fractals | July 31 | Aug. 4 | 2012 | FOTD Home |
Fractal visionaries and enthusiasts:
There
were no FOTD's
for August 1 or 2. The reason is that things were too busy
here
at FC. Today is a different story however.
Today's image takes us back to the MandNewt series of formulas, which
combine the features of Mandelbrot and Newton's method fractals.
To try something different, I chose to investigate the MandNewt07
formula. It's an old formula, probably over 10 years old, and
I
have long since forgotten what it was intended to do, but as today's
fractal shows, it is still capable of producing some interesting images.
The unlikely values of the parameters shows that they were determined
accidentally by the Fractint 'evolver' feature. Sometimes,
especially when the original purpose of the formula is forgotten,
trusting to blind luck to set the parameter values results in the
finest images.
Most of the background of today's image is inside stuff brought to life
by the 'bof60' feature. The name "Dabbling in Fractals"
describes
how I spend perhaps too much time. The rating of a question
mark
leaves it up to the individual viewer to decide the image's worth.
The calculation time of 3 minutes borders on slowness, but here is
where the web sites charge to the rescue.
Very typical midsummer weather prevailed here at Fractal Central today,
with a mix of sun and clouds, high humidity, and a temperature of 90F
32C. The fractal cats spent the afternoon lounging in their
cat
cube complex, while the humans made it through the day
uneventfully. The next FOTD will probably be posted in 24
hours,
but do not be surprised if is late. Until whenever, take
care,
and what ever happened to the ship with a cargo of yoyos that sailed
into the Bermuda Triangle and sank 27 times?
Jim Muth
jimmuth@earthlink.net
START PARAMETER FILE=======================================
DabblingInFractals { ; time=0:03:00.00 SF5 at 2000MHZ
reset=2004 type=formula formulafile=mandnewt.frm
formulaname=MandNewt07 passes=1
center-mag=-36.0987/17.4552/0.1432514/1/124.999/0
params=-4.7737/-0.2798/-4.0249/0.5538/1.9384/0.164
float=y maxiter=300 inside=bof60 periodicity=6
colors=000101300903F06L09R0CW1F`3Ie6Li7OlAPnCQpFXr\
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zpzzlzzizzdzzazz_zzVzzSzzPzzLzzIzzFzvLzoQziXzX`zLd\
zu`zzdzzizx`zmSzdLzVCzM4z }
frm:MandNewt07 {; Jim Muth
z=c=(pixel*p1):
a=z^3+(c-p2)*z-c
b=3*z^2+c-1
z=z-p3*a/b
0.000000000000000000000000000001 <= |a| }
END PARAMETER FILE=========================================