Y add mul pow x2 c mul pow add x2 add x2 mul c mul x2 x1 c mul cos add x1 add mul c cos add c x1 cos x2 sin x2 mul c mul pow x2 c mul pow add x2 add x2 mul c mul x2 x1 c mul add c mul c x1 sin add x1 add mul c cos add c x1 cos x2