July 31, 1997: Nested Cogwheels | July 30 | 1997 | FOTD Home |
Fractal
visionaries:
For the month of August I've decided to devote less energy to the
technical side of fractals and more to the artistic side.
True,
the four-dimensional julibrot figure with its odd slices is
fascinating, but an infinity of fractals is waiting to be discovered in
the good old Mandelbrot and Newton's worlgs.
I'm certainly not going to abandon my exploration of the
julibrot. Every time I examine it I find something new and
interesting. I'm rather going to try to divide my time evenly
between all the various classes of fractals.
Today's fractal is a good start. The formula is one of my
test
formulas that I wrote a while back and then forgot. But it's
really quite an interesting formula, with its tiny portion of opposite
signed imaginary powers cancelling out the negative X-axis
discontinuity.
I named the picture "Cogwheel" because it reminds me of some fantastic
train of gears and gear belts. Look close and you'll find the
classic Z^2 Mandelbrot figure hiding behind the scene.
The finished image has been posted to alt.binaries.pictures.fractals
and alt.fractals.pictures. For tomorrow, the sky is the
limit. I'm going bring up a few more of those old test
formulas
and see what I can find.
And as I promised in yesterday's letter, I've decided on descriptive
names for the four odd slices of the julibrot. Here they are:
they describe the appearance of the slices in question through the
julibrot origin.
XY = Mandelbrot planes
ZW = Julia planes
XZ = Parabolic planes
XW = Elliptic planes
YZ = Oblate planes
YW = Rectangular planes
When I return to the julibrot figure, I'll be using those names to
describe the planes I'm referring to. That way we'll avoid
confusion.
Jim Muth
jamth@mindspring.com
START 19.6 FILE=============================================
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frm:Mytest10 {; Jim Muth
z=c=pixel:
z=z^p1+p2*((z^p3)^(-p3))+c,
|z|<=100 }
END 19.6 FILE===============================================