Y mul x2 mul pow add mul c x2 add mul x2 add x1 pow x2 c mul pow x4 c add x1 pow x2 c c add mul c mul x2 cos x1 mul c mul add x1 pow x2 c mul add mul c x2 add mul x2 add x1 pow x2 c mul pow x4 c add x1 pow x2 c sin x1