Y add mul c mul pow x3 c mul pow add c x1 c mul pow add c mul c x5 c mul pow add c add x1 mul c x5 c add x1 mul c cos x3 mul c mul pow x3 c mul pow add c x1 c mul pow add c mul c x5 c mul pow add c add x1 mul c x5 c add x1 mul c cos x3