asec coth atan cosh Add x0 pi 
Mul Mul Mul -1 Pow csch atan cosh Add x0 pi 2 Mul sinh Add x0 pi Pow Add 1 Mul cosh Add x0 pi cosh Add x0 pi -1 Pow Mul Mul sqrt Add 1 Mul -1 Pow Mul coth atan cosh Add x0 pi coth atan cosh Add x0 pi -1 coth atan cosh Add x0 pi coth atan cosh Add x0 pi -1 