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