Y mul add c mul c mul pow x2 c mul pow add x4 sqrt mul x1 x2 div c c mul pow add x2 mul c mul sqrt add x4 sqrt mul x1 x2 pow tan add c x2 c c pow tan add c x2 c cos add c add x4 mul c mul pow x2 c pow add x2 mul c mul sqrt add x4 sqrt mul x1 x2 pow tan add c x2 c c