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