sec log Pow 0.881373587019543 acos Add x0 x0 
Mul Mul tan log Pow 0.881373587019543 acos Add x0 x0 sec log Pow 0.881373587019543 acos Add x0 x0 Mul Mul Pow 0.881373587019543 Add acos Add x0 x0 -1 Mul 0.755099892920645 Mul -1 Mul 2 Pow sqrt Add 1 Mul -1 Mul Add x0 x0 Add x0 x0 -1 Pow Pow 0.881373587019543 acos Add x0 x0 -1 