sech atanh Add x0 -0.0134765058305891 
Mul Mul tanh atanh Add x0 -0.0134765058305891 Mul -1 sech atanh Add x0 -0.0134765058305891 Pow Add 1 Mul -1 Mul Add x0 -0.0134765058305891 Add x0 -0.0134765058305891 -1 