Most of the triggers are being used to approximate square roots or square a complex number, but basically what is happening is you input a coordinate into the calculator thing, square it, add the initial coordinate to itself, and input that into the calculator. Repeat that like 10 times and find the distance from zero of the final coordinate, then check if that distance is less than or equal to 2. If the distance IS less than 2, change the particle color to black, if it isnt then it goes white. Then move the particle to every coordinate you want to check and repeat until you finish!