Conversion functions

std::pair<T,T> as_pair() const; 
interval<T> as_interval() const; 
kaucher_interval<T> as_kaucher_interval() const;

These member functions convert the current instance of the triplex<T> class into other formats.

as_pair(): Convert the current interval to a std::pair with the first and second members set to the infinimum and supremum, respectively.
as_interval(): Convert the triplex to a classic interval.
as_kaucher_interval(): Convert the triplex to a kaucher interval.