sech Mul Add coth x0 sech Add Pow asec x5 x0 x0 3 
Mul Mul tanh Mul Add coth x0 sech Add Pow asec x5 x0 x0 3 Mul -1 sech Mul Add coth x0 sech Add Pow asec x5 x0 x0 3 Mul 3 Add Mul -1 Pow csch x0 2 Mul Mul tanh Add Pow asec x5 x0 x0 Mul -1 sech Add Pow asec x5 x0 x0 Add Mul Pow asec x5 Add x0 -1 Mul asec x5 log asec x5 1 