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