Mul sech Pow Add x0 -0.881373587019543 sech x0 atan Add pi x4 
Mul atan Add pi x4 Mul Mul tanh Pow Add x0 -0.881373587019543 sech x0 Mul -1 sech Pow Add x0 -0.881373587019543 sech x0 Mul Pow Add x0 -0.881373587019543 Add sech x0 -1 Add sech x0 Mul Mul Add x0 -0.881373587019543 log Add x0 -0.881373587019543 Mul tanh x0 Mul -1 sech x0 