Use the Zoom, PanX and PanY to move around the plane.
How a Mandelbrot set is formed is by using the iterated function fᶜ(z) = z² + c c is the current position as a complex number. This function is iterated many times, usually 100 or 10000, depending on how accurate it needs to be. If the distance of z from the origin is greater than 2, then it will become unbounded, so if a² + b² > 4, then it is unbounded. If the number is bounded below or at 2, then it is part of the Mandelbrot set EDIT: Why is the function "f [UNDERSCORE] c(z) = z² + c" a bad word D: