csch Mul x0 acos tanh acosh Add sec x1 1.77215424758523 
Mul Mul Mul -1 coth Mul x0 acos tanh acosh Add sec x1 1.77215424758523 csch Mul x0 acos tanh acosh Add sec x1 1.77215424758523 acos tanh acosh Add sec x1 1.77215424758523 