Add Mul atan Mul asech acot pi log atanh atan Add log x0 -5 acos Add x0 pi 1 
Add Mul acos Add x0 pi Mul Mul asech acot pi Mul Mul Mul Pow x0 -1 Pow Add 1 Mul Add log x0 -5 Add log x0 -5 -1 Pow Add 1 Mul -1 Mul atan Add log x0 -5 atan Add log x0 -5 -1 Pow atanh atan Add log x0 -5 -1 Pow Add 1 Mul Mul asech acot pi log atanh atan Add log x0 -5 Mul asech acot pi log atanh atan Add log x0 -5 -1 Mul atan Mul asech acot pi log atanh atan Add log x0 -5 Mul -1 Pow sqrt Add 1 Mul -1 Mul Add x0 pi Add x0 pi -1 