atan Pow Add x1 0.958924274663138 Mul 2 x0 
Mul Mul Pow Add x1 0.958924274663138 Add Mul 2 x0 -1 Mul Mul Add x1 0.958924274663138 log Add x1 0.958924274663138 2 Pow Add 1 Mul Pow Add x1 0.958924274663138 Mul 2 x0 Pow Add x1 0.958924274663138 Mul 2 x0 -1 