atanh Mul Add asinh Add x1 sec x0 tanh tan x2 -1 
Mul Mul -1 Mul Mul tan x0 sec x0 Pow sqrt Add 1 Mul Add x1 sec x0 Add x1 sec x0 -1 Pow Add 1 Mul -1 Mul Mul Add asinh Add x1 sec x0 tanh tan x2 -1 Mul Add asinh Add x1 sec x0 tanh tan x2 -1 -1 