tanh Pow Mul 0.999909198766551 x6 acoth Add x0 25 
Mul Pow sech Pow Mul 0.999909198766551 x6 acoth Add x0 25 2 Mul Pow Mul 0.999909198766551 x6 Add acoth Add x0 25 -1 Mul Mul Mul 0.999909198766551 x6 log Mul 0.999909198766551 x6 Pow Add 1 Mul -1 Mul Add x0 25 Add x0 25 -1 