Press the flag and change the sliders: a, b, c, d. 5,5,10,19 4,4,9,19 4,4,9,18 19,20,-20,-19 20,20,-20,19 19,20,-20,19 5,5,5,5 -20,-11,-11,-20
x=cosat+sinbt y=sinct+sindt + geometric transformation art curve - https://scratch.mit.edu/projects/53563970/ art curve2- https://scratch.mit.edu/projects/56195912/
