Y mul c mul x1 mul pow x1 c mul pow x3 c mul pow add c add mul div c c cos x3 add mul c pow x1 c add mul c x3 cos sqrt pow x3 c c sin mul x1 mul pow x3 c pow add c add mul div c c cos x3 add mul c pow x1 c add mul c x3 cos sqrt pow x3 c c