[Fractint] FOTD 22-03-12 (Unlucky Thirteen [7+])

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Author: Jim Muth
To: fractint
Subject: [Fractint] FOTD 22-03-12 (Unlucky Thirteen [7+])

FOTD -- March 22, 2012 (Rating 7+)

Fractal visionaries and enthusiasts:

Today's image lies in the East Valley of a minibrot far out on
the negative spike of a Mandelbrot set with Z^13 corruption in
its depths. The bailout radius has been intentionally set close
to the point where the entire image will be totally cut off.
This adds more detail to the scene. The image magnitude of
almost 10^13 is perilously close to the point of resolution
breakdown, though this has little effect on the scene.

(Fractint bug alert: if the value of the imag(p1) parameter is
entered in the parameter file as 1000000000000000 , the program
reads the value as -1530494976 Changing the parameter file
entry to 1000000000000000.0 [adding a decimal point and a zero]
cures the problem. Something else is being picked up, but I
cannot see what.)

The name "Unlucky Thirteen" refers to the Z^13 corruption of the
parent fractal. Actually thirteen is considered unlucky because
it was on a Friday the thirteenth that the order went out to
destroy the Templars.

The rating of a 7+ indicates my uncertainty as to the true worth
of the image.

With its calculation time of only 20 seconds, the image is
another fireball. But setting up and running a parameter file
is still a minor chore. This nuisance may be eliminated by
viewing the image on the web sites.

The FOTD fractals are posted on the official FOTD web site at:


High definition versions of the images are posted at:


All the past FOTD images and discussions are online at:


Morning clouds broke by mid-afternoon here at Fractal Central,
letting through just enough sun to raise the temperature to a
balmy 72F 22C. The fractal cats would have preferred more sun.

The humans spent the day keeping busy, which took little effort.
A minor political difference at lunch time was settled before it
grew. The next FOTD will be posted in 24 hours. At least, it's
supposed to be posted then. Until whenever, take care, and
always remember that every argument has two sides.

Jim Muth

START PARAMETER FILE=======================================

Unlucky_Thirteen { ; time=0:00:20.00 SF5 at 2000MHZ
reset=2004 type=formula formulafile=basicer.frm
formulaname=FinDivBrot-2 function=recip
8.191939e+012 params=13/1000000000000000.0/\
-12.003665/0 float=y maxiter=300 inside=0 logmap=39
periodicity=6 mathtolerance=0.05/1
`Wz`Vz`Vz_Vz_Vz_WzZVz_Vz_ }

frm:FinDivBrot-2 { ; Jim Muth
z=(0,0), c=pixel, a=-(real(p1)-2),
esc=(real(p2)+16), b=imag(p1):
|z| < esc }

END PARAMETER FILE=========================================