tan atanh Add Pow x2 sec Add x4 atanh x0 -5 
Mul Pow sec atanh Add Pow x2 sec Add x4 atanh x0 -5 2 Mul Mul Pow x2 Add sec Add x4 atanh x0 -1 Mul Mul x2 log x2 Mul Mul tan Add x4 atanh x0 sec Add x4 atanh x0 Pow Add 1 Mul -1 Mul x0 x0 -1 Pow Add 1 Mul -1 Mul Add Pow x2 sec Add x4 atanh x0 -5 Add Pow x2 sec Add x4 atanh x0 -5 -1 