Pow atan csc Add asec acoth x1 x0 x2 
Mul Pow atan csc Add asec acoth x1 x0 Add x2 -1 Mul x2 Mul Mul Mul -1 cot Add asec acoth x1 x0 csc Add asec acoth x1 x0 Pow Add 1 Mul csc Add asec acoth x1 x0 csc Add asec acoth x1 x0 -1 