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