TURBO MODE Click on flag and see the first example. Then, choose another schema on the cursor and click on flag again. I did this project to experiment to make Julia Sets by a different procedure than I used in 2010, when there was no online turbo mode. At that time, I used the procedure that @mathjp has created and shared with me, which made possible, for the first time, to see online Julia sets made with Scratch, using previous projects to fill lists, compressing, and decompressing them online. mathjp's project: https://scratch.mit.edu/projects/1502200/ However, in 2013, I made some Julia Set, still using lists, but without compressing them, due to have been introduced turbo mode.
I used the function Zn+1 = Zn^2 + C (Z complex and C also complex, constant in each Julia Set). Several constants C can be found on Web sites. The coloring is defined as a function of the number of iterations in each fractal. Music: 'Silence' - Beethoven (excerpts)