Y add mul c mul pow x3 c mul pow x1 c pow add x4 pow add mul x3 x4 mul x3 add c add x1 sin x3 c c mul c mul pow x3 c mul pow x1 c mul pow add x4 pow add mul x3 x4 mul x3 add c add x1 sin x3 c c mul add mul x3 x4 mul x3 add c add x1 sin x3 add c add mul c x1 add mul c x4 add mul c sin x3 mul c mul x3 cos x3