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Mandelbrot


Yomama20

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The Mandelbrot set is the set of complex numbers c for which the function {\displaystyle f_{c}(z)=z^{2}+c} does not diverge when iterated from z=0, i.e., for which the sequence {\displaystyle f_{c}(0)}, {\displaystyle f_{c}(f_{c}(0))}, etc., remains bounded in absolute value.

322px-Mandel_zoom_00_mandelbrot_set.jpg
The Mandelbrot set (black) within a continuously colored environment
Progressive infinite iterations of the "Nautilus" section of the Mandelbrot Set rendered using webGL
220px-Animation_of_the_growth_of_the_Man
Mandelbrot animation based on a static number of iterations per pixel
220px-Mandelbrot_set_image.png
Mandelbrot set detail
220px-Mandelbrot_sequence_new.gif
Zooming into the Mandelbrot set

Its definition is credited to Adrien Douady who named it in tribute to the mathematician Benoit Mandelbrot.[1] The set is connected to a Julia set, and related Julia sets produce similarly complex fractal shapes.

Mandelbrot set images may be created by sampling the complex numbers and testing, for each sample point c, whether the sequence {\displaystyle f_{c}(0),f_{c}(f_{c}(0)),\dotsc } goes to infinity (in practice – whether it leaves some predetermined bounded neighborhood of 0 after a predetermined number of iterations). Treating the real and imaginary parts of cas image coordinates on the complex plane, pixels may then be coloured according to how soon the sequence {\displaystyle |f_{c}(0)|,|f_{c}(f_{c}(0))|,\dotsc } crosses an arbitrarily chosen threshold, with a special color (usually black) used for the values of c for which the sequence has not crossed the threshold after the predetermined number of iterations (this is necessary to clearly distinguish the Mandelbrot set image from the image of its complement). If c is held constant and the initial value of z—denoted by z_{0}—is variable instead, one obtains the corresponding Julia set for each point c in the parameter space of the simple function.

Images of the Mandelbrot set exhibit an elaborate and infinitely complicated boundary that reveals progressively ever-finer recursive detail at increasing magnifications. In other words, the boundary of the Mandelbrot set is a fractal curve. The "style" of this repeating detail depends on the region of the set being examined. The set's boundary also incorporates smaller versions of the main shape, so the fractal property of self-similarityapplies to the entire set, and not just to its parts.
 

cut copy pasted from wiki

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4 hours ago, Ellen said:

I did generative art based on these fractals by combining sinusoidal and cosine waves. It's great to play around with these equations ...you can use python turtle library to generate these functions 

Okay 👍🏽

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