acos Add -2 cos Mul Add -0.881373587019543 x7 x0 
Mul -1 Mul Mul Mul -1 sin Mul Add -0.881373587019543 x7 x0 Add -0.881373587019543 x7 Pow sqrt Add 1 Mul -1 Mul Add -2 cos Mul Add -0.881373587019543 x7 x0 Add -2 cos Mul Add -0.881373587019543 x7 x0 -1 