Add Pow Pow 4 x0 0.423199121715998 Mul x0 acoth x0 
Add Mul Pow Pow 4 x0 -0.576800878284002 Mul 0.423199121715998 Mul Pow 4 Add x0 -1 5.38629436111989 Add acoth x0 Mul x0 Pow Add 1 Mul -1 Mul x0 x0 -1 