acot sec Mul x0 0.523598775598299 
Mul -1 Mul Mul Mul tan Mul x0 0.523598775598299 sec Mul x0 0.523598775598299 0.523598775598299 Pow Add 1 Mul sec Mul x0 0.523598775598299 sec Mul x0 0.523598775598299 -1 