Pow Pow 4 acoth Pow x0 sec x5 -5 
Mul Pow Pow 4 acoth Pow x0 sec x5 6 Mul -5 Mul Pow 4 Add acoth Pow x0 sec x5 -1 Mul 5.38629436111989 Mul Mul Pow x0 Add sec x5 -1 sec x5 Pow Add 1 Mul -1 Mul Pow x0 sec x5 Pow x0 sec x5 -1 