Mul Pow x1 x0 Pow Pow x7 -1.98034659120480 Add acoth x0 x0 
Add Mul Pow Pow x7 -1.98034659120480 Add acoth x0 x0 Mul Pow x1 Add x0 -1 Mul x1 log x1 Mul Pow x1 x0 Mul Pow Pow x7 -1.98034659120480 Add Add acoth x0 x0 -1 Mul Mul Pow x7 -1.98034659120480 log Pow x7 -1.98034659120480 Add Pow Add 1 Mul -1 Mul x0 x0 -1 1 