Add Pow log Add x0 sech x0 acoth x0 Add Mul Add coth x4 x2 x0 x0 
Add Mul Pow log Add x0 sech x0 Add acoth x0 -1 Add Mul acoth x0 Mul Add 1 Mul tanh x0 Mul -1 sech x0 Pow Add x0 sech x0 -1 Mul Mul log Add x0 sech x0 log log Add x0 sech x0 Pow Add 1 Mul -1 Mul x0 x0 -1 Add Add coth x4 x2 1 