Add atanh Pow Add x2 acot sech x2 x0 x5 
Mul Mul Pow Add x2 acot sech x2 Add x0 -1 Mul Add x2 acot sech x2 log Add x2 acot sech x2 Pow Add 1 Mul -1 Mul Pow Add x2 acot sech x2 x0 Pow Add x2 acot sech x2 x0 -1 