\begin{ccRefConcept}{AlgebraicConcept} \ccDefinition The concept \ccClassTemplateName\ defines the requirements for the template parameter of the search classes. \ccTypes \ccNestedType{Point_d}{Point type. \ccc{CGAL::Kernel_traits} has to be specialized for this type.} \ccHasModels \ccc{CGAL::Cartesian_d}\\ \ccc{CGAL::Homogeneous_d} \end{ccRefConcept}