\begin{ccRefFunction}{to_interval} \ccDefinition The template function \ccRefName\ computes for a given real embeddable number $x$ a double interval containing $x$. This interval is represented by a \ccc{CGAL::Interval_nt}. The function is guaranteed to be well defined in case the argument type is a model of the \ccc{RealEmbeddable} concept. \ccInclude{CGAL/number_utils.h} \ccFunction{template Interval_nt to_interval(const NT& x);} {} \ccSeeAlso \ccRefConceptPage{RealEmbeddable}\\ \ccRefConceptPage{RealEmbeddableTraits::ToInterval}\\ \end{ccRefFunction}