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