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