Mul cot acot Add x0 -0.252680255142079 x0 
Add Mul x0 Mul Mul -1 Pow csc acot Add x0 -0.252680255142079 2 Mul -1 Pow Add 1 Mul Add x0 -0.252680255142079 Add x0 -0.252680255142079 -1 cot acot Add x0 -0.252680255142079 