Y mul div c c mul pow mul pow x3 c add c add x3 add mul x4 x3 cos x4 div c c add mul c mul sqrt mul pow x3 c add c add x3 add mul x4 x3 cos x4 add c mul c mul pow x4 c mul sqrt mul pow x3 c add c add x3 add mul x4 x3 cos x4 pow add c x3 c mul c mul pow add c x3 c add c pow x4 c