Y mul pow x5 div c c mul pow x1 c mul pow add x1 sqrt x5 c add mul pow x5 div c c mul add c mul add c mul c x2 cos pow x1 c add x1 sqrt x5 add mul div c c mul pow x5 c mul add c mul add c x2 cos pow x1 c add pow x5 c mul c mul pow x5 div c c add x1 sqrt x5 mul c mul pow x5 div c c mul pow x1 c pow add x1 sqrt x5 c