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