acos Pow Pow 0.881373587019543 Mul pi 1.54294724732719 x0 
Mul -1 Mul Mul Pow Pow 0.881373587019543 Mul pi 1.54294724732719 Add x0 -1 Mul Pow 0.881373587019543 Mul pi 1.54294724732719 log Pow 0.881373587019543 Mul pi 1.54294724732719 Pow sqrt Add 1 Mul -1 Mul Pow Pow 0.881373587019543 Mul pi 1.54294724732719 x0 Pow Pow 0.881373587019543 Mul pi 1.54294724732719 x0 -1 