FAME - Fractal Art Museum Enterprise - presenting:
    From Jo's Notebook
     Dr. Joseph Trotsky
     June, 2003
The T-Set Anti Fractals
II. The Trigon: the anti-fractal of the classic M-Set

. . . The complex universe is actually the impossible mixture of two worlds that will never meet: real and imaginary. It exists only on the ploted 2D plane where the real and imaginary parts of the complex values are represented by the X and Y axes accordingly and here is where the fractals are rendered.
   
Picture 1: Classic Mandelbrot
    Picture 2: Anti-fractal: Trigon

Picture 1 above is the classic Mandelbrot M-Set and picture 2 is the Trigon Anti-Fractal from the T-Set. Both pictures are the reflection of the impossible complex entity, where Real and Imaginary dwells side by side.
I rendered the T-Set fractals by using the following programming technique: each fractal equation is actually divided into 2 sub equations: a Real equation holding the real segments of the formula and an Imaginary equation, holding the imaginary parts.

The classic square M-Set 'z = z^2 + C is created by the 2 following simple formulas:
          Real 'Z  = rz2 - iz2 + a
          Imag 'Z = 2 * rz * iz + b
These are the equations used to render the M-Set fractal in picture 1.

Now I did a simple switch: I substituted these two Real and Imaginary components with each other. This was all that was needed to create the Anti Fractals Set:
          Imag 'Z  = rz2 - iz2 + a
          Real 'Z   = 2 * rz * iz + b
This process was the one that created the Trigon Anti Fractal in picture 2 above.

   Picture 3: Secondary bulb on right main Trigon's ovoid.
Nomenclature and definitions:
Indeed the Trigon fractal above was described by Robert L. Devaney in his book "Chaos, Fractals, and Dynamics" (Addison-Wesley, 1990) where it was referred to by the name "Tricorn" due to it's resemblance to a tricornered hat.
Though Tricorn is a worthy artistic title it relates only to a single member shape and its accidental resemblance to a familiar object. I prefer the close sounding name Trigon that relates to the characteristics of the math shape and is in accordance with all members of the T-Set.
Anyway, the tricorn was plotted by using the complex conjugate of Z instead of Z in the Mandelbrot equation: Z = sqr(conj(Z))+C but was not regarded as the Anti Fractal Set of the M-Set.

The body of the T-Set members has a clear polygonal shape. The number of the polygon sides is one more then the power of the equivalent fractal in the M-Set. Thus the classic squared Mandelbrot with one primary bulb is represented in the T-Set by the Trigon with 3 Ovoids.

The ratio between the number of bulbs and the number of ovoids in the same power of the M-Set and the T-Set could be calculated by this equation:
            n(T-Set) = exp(M-Set) + 1
where:
n(T-Set) is the number of the ovoids in the T-Set polygon and
exp(M-Set) is the power of both M-Set and T-Set.
This is the same for the number of the polygon sides, as each ovoid emerges from a vertex of the polygon. This equation is kept along the whole family. At each vertex of the polygonal bodies of the T-Set members emerges an Ovoid body, the equivalent of the M-Set cardioid. Roughly speaking the ovoids are an elongated stretched equivalent of the Cardioid.

Looking at the morphology of the M-Set we see, that the number of cardioids equals the power of the given member minus 1. This derives another interesting equation:
            P = {n(M-Set) + n(T-Set)} / 2
where:
n(M-Set) is the number of cardioids of a member of the M-Set,
n(T-Set) is the number of ovoids in the member of the T-Set and
P is power of both members. This means that the mean value of any Fractal + Anti Fractal will give the order (power) of the members.

   Picture 4: miniTrigon repeating the entire trigon form.
The Trigon member is the first in the T-Set family. It is the Anti Fractal of the equivalent square M-Set and has a distinctive triangular body. From the 3 vertexes of the triangle emerge 3 elongated oval shapes. Each of these ovoids is actually an equivalent of one M-Set Mandelbrot, so in the T-Set it is a poly-fractal fractalgram. At the top of each ovoid the main bulb of the Anti Fractal emerges.

Following is a short description of the structures and morphology of this interesting family of fractals.


Author:
Dr. Joseph Trotsky

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