Add atan Add acot Add Mul exp x5 x0 x2 x1 x0 
Add Mul Mul -1 Mul exp x5 Pow Add 1 Mul Add Mul exp x5 x0 x2 Add Mul exp x5 x0 x2 -1 Pow Add 1 Mul Add acot Add Mul exp x5 x0 x2 x1 Add acot Add Mul exp x5 x0 x2 x1 -1 1 