Turbo mode needed (shift+green flag) unless you want to see the process. The values of two variables a and b are randomly chosen integer values in the interval [ -7 , 7 ] so there are many different drawings. In each drawing there are 3600 circles with midpoint on a wheel curve and varying radius.
Inspired by mathematical artist Hamid Naderi Yeganeh's works with circles, see https://mathematics.culturalspot.org/browse and by recent Scratch projects based on Yeganeh's ideas, shared by Selim and others. And very much intrigued by the complicated formulas that Yeganeh uses . . . doubting that I ever will understand them fully ;)