Pow x3 Pow x0 acos Add x0 0.814477216699512 
Mul Pow x3 Add Pow x0 acos Add x0 0.814477216699512 -1 Mul Mul x3 log x3 Mul Pow x0 Add acos Add x0 0.814477216699512 -1 Add acos Add x0 0.814477216699512 Mul Mul x0 log x0 Mul -1 Pow sqrt Add 1 Mul -1 Mul Add x0 0.814477216699512 Add x0 0.814477216699512 -1 