AltErgoLib.Arithval calc_power : Numbers.Q.t -> Numbers.Q.t -> Ty.t -> Numbers.Q.tcalc_power x y t Compute x^y. Raise Exit if y is not an Int (castable in Int).
val calc_power_opt : Numbers.Q.t -> Numbers.Q.t -> Ty.t -> Numbers.Q.t optionSame as calc_power but return an option. Return None if the exception Exit is raised by calc_power