Add atan Pow sec Add acoth x0 1 x0 0.540302305868140 
Mul Mul Pow sec Add acoth x0 1 Add x0 -1 Add Mul x0 Mul Mul tan Add acoth x0 1 sec Add acoth x0 1 Pow Add 1 Mul -1 Mul x0 x0 -1 Mul sec Add acoth x0 1 log sec Add acoth x0 1 Pow Add 1 Mul Pow sec Add acoth x0 1 x0 Pow sec Add acoth x0 1 x0 -1 