Turn the green flag and see.
The curves described parametrically: x=costcostcos(nt) y=sintsintsin(nt) x=costcostcos(n-t) y=sintsintsin(nt) x=costcostcos(nt) y=sintsintsin(n-t) x=costcostcos(n+t) y=sintsintsin(n+t) Music: Bob Dylan - Knockin' on Heaven's Door
