These sets can be plotted in the complex plane and I just wanted to program that and learn how to use the Jupyter Notebook. The programming language is Julia btw. The Julia Set programmed in Julia... how funny, I know.
You can click on the .ipynb and then in the URL replace ".com" with ".dev". A version of VS Code should opens up and you can play around with the code. I hope...
You have probably seen the Mandelbrot Set. In the code you can set the real and imaginary limits and also the resolution.
There are infinitely many Julia Sets and it depends on what function you choose. I have two different examples of a Julia Set.