Y add mul pow x2 c mul pow x3 c pow add c mul sqrt pow x4 c abs x2 c add mul c mul pow x2 c mul pow x3 c mul pow add c mul sqrt pow x4 c abs x2 c add x2 add x4 x3 mul c mul pow x2 c mul pow x3 c mul sqrt pow x4 c mul pow add c mul sqrt pow x4 c abs x2 c mul add x2 add x4 x3 sign x2