Select the slide k and press space bar. TURBO MODE
Epicycloid described parametrically: x=a(k+1)cost+acos(t(k+1)) y=a(k+1)sint+asin(t(k+1)) with k positive (k>0) k=1 cardioid with k negative (k<-2) equations describe hipocycloid k=-3 - deltoid k=-4 - astroid
