Pow tanh sech Mul -1.00067115040168 atan sec x3 x0 
Mul Pow tanh sech Mul -1.00067115040168 atan sec x3 Add x0 -1 Mul tanh sech Mul -1.00067115040168 atan sec x3 log tanh sech Mul -1.00067115040168 atan sec x3 