x = a*(3*cos(t) - cos(3*t))
y = a*(3*sin(t) - sin(3*t))
is there a library or function to convert above parametric equations into one equation in terms of x and y?
sys := x = a*(3*cos(t) - cos(3*t));
k := solve(sys, t);
simplify(subs(t=k[1], y = a*(3*sin(t) - sin(3*t))));
any simpler form?
