Y mul pow x4 div c c mul pow add x5 mul c x2 c add mul c mul x2 pow add x5 mul c x2 c add mul pow x4 div c c mul pow add c add x5 add x2 cos c c add x2 mul c x5 mul c mul pow x4 div c c mul pow add x5 mul c x2 c add c add x5 add x2 cos c