/// \defgroup PkgKernel23Ref Reference Manual

/// \defgroup PkgKernel23Concepts Concepts
/// \ingroup PkgKernel23Ref

/// \defgroup PkgKernel23ConceptsGeomObject Kernel Geometric Object Concepts
/// \ingroup PkgKernel23Concepts

/// \defgroup PkgKernel23ConceptsFunctionObjects Kernel Function Object Concepts
/// \ingroup PkgKernel23Concepts

/// \defgroup kernel_predef Predefined Kernels
/// \ingroup PkgKernel23Ref

/// \defgroup kernel_classes2 2D Kernel Objects
/// \ingroup PkgKernel23Ref

/// \defgroup kernel_classes3 3D Kernel Objects
/// \ingroup PkgKernel23Ref

/// \defgroup kernel_classes Kernel Classes
/// \ingroup PkgKernel23Ref

/// \defgroup kernel_global_function Global Kernel Functions
/// \ingroup PkgKernel23Ref

/// \defgroup kernel_enums Enumerations and Related Functions
/// \ingroup PkgKernel23Ref

/// \defgroup kernel_conversion Cartesian/Homogeneous Conversion
/// \ingroup PkgKernel23Ref

/// \defgroup kernel_dimension Dimension Handling Tools
/// \ingroup PkgKernel23Ref

/*!
\addtogroup PkgKernel23Ref
\cgalPkgDescriptionBegin{2D and 3D Linear Geometry Kernel,PkgKernel23}
\cgalPkgPicture{pointSegmentTriangle.png}
\cgalPkgSummaryBegin
\cgalPkgAuthors{Hervé Brönnimann, Andreas Fabri, Geert-Jan Giezeman, Susan Hert, Michael Hoffmann, Lutz Kettner, Sylvain Pion, and Stefan Schirra}
\cgalPkgDesc{This package contains kernels each containing objects of  constant size, such as point, vector, direction, line, ray, segment, circle as well as predicates and constructions for these objects. The kernels mainly differ in the way they handle robustness issues.}
\cgalPkgManuals{Chapter_2D_and_3D_Geometry_Kernel,PkgKernel23Ref}
\cgalPkgSummaryEnd
\cgalPkgShortInfoBegin
\cgalPkgSince{0.9}
\cgalPkgBib{cgal:bfghhkps-lgk23}
\cgalPkgLicense{\ref licensesLGPL "LGPL"}
\cgalPkgShortInfoEnd
\cgalPkgDescriptionEnd

\cgalClassifedRefPages

\cgalCRPSection{Concepts}

- `Kernel`

\cgalCRPSection{%Kernel Classes and Operations}

- `CGAL::Cartesian<FieldNumberType>`
- `CGAL::Cartesian_converter<K1, K2, NTConverter>`
- `CGAL::cartesian_to_homogeneous`
- `CGAL::Filtered_kernel<CK,UseStaticFilters>`
- `CGAL::Filtered_kernel_adaptor<CK>`
- `CGAL::Filtered_predicate<EP, FP, C2E, C2F>`
- `CGAL::Homogeneous<RingNumberType>`
- `CGAL::Homogeneous_converter<K1, K2, RTConverter, FTConverter>`
- `CGAL::homogeneous_to_cartesian`
- `CGAL::homogeneous_to_quotient_cartesian`
- `CGAL::Kernel_traits<T>`
- `CGAL::Simple_cartesian<FieldNumberType>`
- `CGAL::Simple_homogeneous<RingNumberType>`
- `CGAL::Projection_traits_xy_3<K>`
- `CGAL::Projection_traits_3<K>`

\cgalCRPSection{Predefined Kernels}

- `CGAL::Exact_predicates_exact_constructions_kernel`
- `CGAL::Exact_predicates_exact_constructions_kernel_with_sqrt`
- `CGAL::Exact_predicates_inexact_constructions_kernel`

\cgalCRPSection{%Kernel Objects}

\cgalCRPSubsection{Two-dimensional Objects}

- `CGAL::Aff_transformation_2<Kernel>`
- `CGAL::Bbox_2`
- `CGAL::Circle_2<Kernel>`
- `CGAL::Direction_2<Kernel>`
- `CGAL::Iso_rectangle_2<Kernel>`
- `CGAL::Line_2<Kernel>`
- `CGAL::Point_2<Kernel>`
- `CGAL::Ray_2<Kernel>`
- `CGAL::Segment_2<Kernel>`
- `CGAL::Triangle_2<Kernel>`
- `CGAL::Vector_2<Kernel>`
- `CGAL::Weighted_point_2<Kernel>`

\cgalCRPSubsection{Three-dimensional Objects}

- `CGAL::Bbox_3`
- `CGAL::Aff_transformation_3<Kernel>`
- `CGAL::Direction_3<Kernel>`
- `CGAL::Iso_cuboid_3<Kernel>`
- `CGAL::Line_3<Kernel>`
- `CGAL::Plane_3<Kernel>`
- `CGAL::Point_3<Kernel>`
- `CGAL::Ray_3<Kernel>`
- `CGAL::Segment_3<Kernel>`
- `CGAL::Circle_3<Kernel>`
- `CGAL::Sphere_3<Kernel>`
- `CGAL::Tetrahedron_3<Kernel>`
- `CGAL::Triangle_3<Kernel>`
- `CGAL::Vector_3<Kernel>`
- `CGAL::Weighted_point_3<Kernel>`


\cgalCRPSection{Constants and Enumerations}

- `CGAL::Angle`
- `CGAL::Bounded_side`
- `CGAL::Comparison_result`
- `CGAL::Sign`
- `CGAL::Orientation`
- `CGAL::Oriented_side`
- `CGAL::CLOCKWISE`
- `CGAL::COUNTERCLOCKWISE`
- `CGAL::COLLINEAR`
- `CGAL::LEFT_TURN`
- `CGAL::RIGHT_TURN`
- `CGAL::COPLANAR`
- `CGAL::DEGENERATE`
- `CGAL::Null_vector`
- `CGAL::NULL_VECTOR`
- `CGAL::Origin`
- `CGAL::ORIGIN`
- `CGAL::Identity_transformation`
- `CGAL::Reflection`
- `CGAL::Rotation`
- `CGAL::Scaling`
- `CGAL::Translation`

\cgalCRPSection{Global Functions}

- \link angle_grp `CGAL::angle()` \endlink
- \link angle_grp `CGAL::approximate_angle()` \endlink
- \link angle_grp `CGAL::approximate_dihedral_angle()` \endlink
- \link are_ordered_along_line_grp `CGAL::are_ordered_along_line()` \endlink
- \link are_strictly_ordered_along_line_grp `CGAL::are_strictly_ordered_along_line()` \endlink
- \link area_grp `CGAL::area()` \endlink
- \link barycenter_grp `CGAL::barycenter()` \endlink
- \link bisector_grp `CGAL::bisector()` \endlink
- \link centroid_grp `CGAL::centroid()` \endlink
- \link circumcenter_grp `CGAL::circumcenter()` \endlink
- \link collinear_grp `CGAL::collinear()` \endlink
- \link collinear_are_ordered_along_line_grp `CGAL::collinear_are_ordered_along_line()` \endlink
- \link collinear_are_strictly_ordered_along_line_grp `CGAL::collinear_are_strictly_ordered_along_line()` \endlink
- \link compare_distance_to_point_grp `CGAL::compare_distance_to_point()` \endlink
- \link compare_lexicographically_linear_grp `CGAL::compare_lexicographically()` \endlink
- \link compare_signed_distance_to_line_grp `CGAL::compare_signed_distance_to_line()` \endlink
- \link compare_signed_distance_to_plane_grp `CGAL::compare_signed_distance_to_plane()` \endlink
- \link compare_slopes_grp `CGAL::compare_slopes()` \endlink
- `CGAL::compare_angle()`
- \link compare_dihedral_angle_grp `CGAL::compare_dihedral_angle()` \endlink
- \link compare_squared_distance_grp `CGAL::compare_squared_distance()` \endlink
- \link compare_squared_radius_grp `CGAL::compare_squared_radius()` \endlink
- \link compare_x_grp `CGAL::compare_x()` \endlink
- \link compare_xy_grp `CGAL::compare_xy()` \endlink
- \link compare_xyz_grp `CGAL::compare_xyz()` \endlink
- \link compare_x_at_y_grp `CGAL::compare_x_at_y()` \endlink
- \link compare_y_grp `CGAL::compare_y()` \endlink
- \link compare_y_at_x_grp `CGAL::compare_y_at_x()` \endlink
- \link compare_yx_grp `CGAL::compare_yx()` \endlink
- \link compare_z_grp `CGAL::compare_z()` \endlink
- \link coplanar_grp `CGAL::coplanar()` \endlink
- \link coplanar_orientation_grp `CGAL::coplanar_orientation()` \endlink
- \link coplanar_side_of_bounded_circle_grp `CGAL::coplanar_side_of_bounded_circle()` \endlink
- \link cross_product_grp `CGAL::cross_product()` \endlink
- \link determinant_grp `CGAL::determinant()` \endlink
- \link do_intersect_grp `CGAL::do_intersect()` \endlink
- \link do_overlap_grp `CGAL::do_overlap()` \endlink
- `CGAL::enum_cast()`
- \link equidistant_line_grp `CGAL::equidistant_line()` \endlink
- \link has_larger_distance_to_point_grp `CGAL::has_larger_distance_to_point()` \endlink
- \link has_larger_signed_distance_to_line_grp `CGAL::has_larger_signed_distance_to_line()` \endlink
- \link has_larger_signed_distance_to_plane_grp `CGAL::has_larger_signed_distance_to_plane()` \endlink
- \link has_smaller_distance_to_point_grp `CGAL::has_smaller_distance_to_point()` \endlink
- \link has_smaller_signed_distance_to_line_grp `CGAL::has_smaller_signed_distance_to_line()` \endlink
- \link has_smaller_signed_distance_to_plane_grp `CGAL::has_smaller_signed_distance_to_plane()` \endlink
- \link intersection_grp `CGAL::intersection()` \endlink
- \link l_infinity_distance_grp `CGAL::l_infinity_distance()` \endlink
- \link left_turn_grp `CGAL::left_turn()` \endlink
- \link lexicographically_xyz_smaller_grp `CGAL::lexicographically_xyz_smaller()` \endlink
- \link lexicographically_xyz_smaller_or_equal_grp `CGAL::lexicographically_xyz_smaller_or_equal()` \endlink
- \link lexicographically_xy_larger_grp `CGAL::lexicographically_xy_larger()` \endlink
- \link lexicographically_xy_larger_or_equal_grp `CGAL::lexicographically_xy_larger_or_equal()` \endlink
- \link lexicographically_xy_smaller_grp `CGAL::lexicographically_xy_smaller()` \endlink
- \link lexicographically_xy_smaller_or_equal_grp `CGAL::lexicographically_xy_smaller_or_equal()` \endlink
- \link max_vertex_grp `CGAL::max_vertex()` \endlink
- \link midpoint_grp `CGAL::midpoint()` \endlink
- \link normal_grp `CGAL::normal()` \endlink
- \link min_vertex_grp `CGAL::min_vertex()` \endlink
- \link Kernel_operator_plus `CGAL::operator+()` \endlink
- \link Kernel_operator_minus `CGAL::operator-()` \endlink
- \link Kernel_operator_prod `CGAL::operator*()` \endlink
- `CGAL::opposite()`
- \link orthogonal_vector_grp `CGAL::orthogonal_vector()` \endlink
- \link orientation_grp `CGAL::orientation()` \endlink
- \link parallel_grp `CGAL::parallel()` \endlink
- `CGAL::quotient_cartesian_to_homogeneous()`
- \link radical_plane_grp `CGAL::radical_plane()` \endlink
- \link radical_line_grp `CGAL::radical_line()` \endlink
- \link rational_rotation_approximation_grp `CGAL::rational_rotation_approximation()` \endlink
- \link right_turn_grp `CGAL::right_turn()` \endlink
- \link scalar_product_grp `CGAL::scalar_product()` \endlink
- \link side_of_bounded_circle_grp `CGAL::side_of_bounded_circle()` \endlink
- \link side_of_bounded_sphere_grp `CGAL::side_of_bounded_sphere()` \endlink
- \link side_of_oriented_circle_grp `CGAL::side_of_oriented_circle()` \endlink
- \link side_of_oriented_sphere_grp `CGAL::side_of_oriented_sphere()` \endlink
- \link squared_area_grp `CGAL::squared_area()` \endlink
- \link squared_distance_grp `CGAL::squared_distance()` \endlink
- \link squared_radius_grp `CGAL::squared_radius()` \endlink
- \link unit_normal_grp `CGAL::unit_normal()` \endlink
- \link volume_grp `CGAL::volume()` \endlink
- \link x_equal_grp `CGAL::x_equal()` \endlink
- \link y_equal_grp `CGAL::y_equal()` \endlink
- \link z_equal_grp `CGAL::z_equal()` \endlink

\cgalCRPSection{%Kernel Geometric Object Concepts}

- `Kernel::Circle_2`
- `Kernel::Circle_3`
- `Kernel::Direction_2`
- `Kernel::Direction_3`
- `Kernel::IsoCuboid_3`
- `Kernel::IsoRectangle_2`
- `Kernel::Line_2`
- `Kernel::Line_3`
- `Kernel::Object_2`
- `Kernel::Object_3`
- `Kernel::Plane_3`
- `Kernel::Point_2`
- `Kernel::Point_3`
- `Kernel::Ray_2`
- `Kernel::Ray_3`
- `Kernel::Segment_2`
- `Kernel::Segment_3`
- `Kernel::Sphere_3`
- `Kernel::Tetrahedron_3`
- `Kernel::Triangle_2`
- `Kernel::Triangle_3`
- `Kernel::Vector_2`
- `Kernel::Vector_3`
- `Kernel::WeightedPoint_2`
- `Kernel::WeightedPoint_3`

\cgalCRPSection{%Kernel Function Object Concepts}

- `Kernel::Angle_2`
- `Kernel::Angle_3`
- `Kernel::AreOrderedAlongLine_2`
- `Kernel::AreOrderedAlongLine_3`
- `Kernel::AreParallel_2`
- `Kernel::AreParallel_3`
- `Kernel::AreStrictlyOrderedAlongLine_2`
- `Kernel::AreStrictlyOrderedAlongLine_3`
- `Kernel::Assign_2`
- `Kernel::Assign_3`
- `Kernel::BoundedSide_2`
- `Kernel::BoundedSide_3`
- `Kernel::CollinearAreOrderedAlongLine_2`
- `Kernel::CollinearAreOrderedAlongLine_3`
- `Kernel::CollinearAreStrictlyOrderedAlongLine_2`
- `Kernel::CollinearAreStrictlyOrderedAlongLine_3`
- `Kernel::CollinearHasOn_2`
- `Kernel::Collinear_2`
- `Kernel::Collinear_3`
- `Kernel::CompareAngleWithXAxis_2`
- `Kernel::CompareDihedralAngle_3`
- `Kernel::CompareDistance_2`
- `Kernel::CompareDistance_3`
- `Kernel::CompareSlope_2`
- `Kernel::CompareSlope_3`
- `Kernel::ComparePowerDistance_2`
- `Kernel::ComparePowerDistance_3`
- `Kernel::CompareSignedDistanceToLine_2`
- `Kernel::CompareSquaredDistance_2`
- `Kernel::CompareSquaredDistance_3`
- `Kernel::CompareSquaredRadius_3`
- `Kernel::CompareWeightedSquaredRadius_3`
- `Kernel::CompareXAtY_2`
- `Kernel::CompareXYZ_3`
- `Kernel::CompareXY_2`
- `Kernel::CompareXY_3`
- `Kernel::CompareX_2`
- `Kernel::CompareX_3`
- `Kernel::CompareYAtX_2`
- `Kernel::CompareY_2`
- `Kernel::CompareY_3`
- `Kernel::CompareYX_2`
- `Kernel::CompareZ_3`
- `Kernel::ComputeA_2`
- `Kernel::ComputeB_2`
- `Kernel::ComputeC_2`
- `Kernel::ComputeApproximateArea_3`
- `Kernel::ComputeApproximateAngle_3`
- `Kernel::ComputeApproximateDihedralAngle_3`
- `Kernel::ComputeApproximateSquaredLength_3`
- `Kernel::ComputeArea_2`
- `Kernel::ComputeArea_3`
- `Kernel::ComputeAreaDividedByPi_3`
- `Kernel::ComputeDeterminant_2`
- `Kernel::ComputeDeterminant_3`
- `Kernel::ComputeDx_2`
- `Kernel::ComputeDy_2`
- `Kernel::ComputeHx_2`
- `Kernel::ComputeHy_2`
- `Kernel::ComputeLInfinityDistance_2`
- `Kernel::ComputeLInfinityDistance_3`
- `Kernel::ComputePowerDistanceToPowerSphere_3`
- `Kernel::ComputePowerProduct_2`
- `Kernel::ComputePowerProduct_3`
- `Kernel::ComputeScalarProduct_2`
- `Kernel::ComputeScalarProduct_3`
- `Kernel::ComputeSquaredArea_3`
- `Kernel::ComputeSquaredDistance_2`
- `Kernel::ComputeSquaredDistance_3`
- `Kernel::ComputeSquaredLength_2`
- `Kernel::ComputeSquaredLength_3`
- `Kernel::ComputeSquaredLengthDividedByPiSquare_3`
- `Kernel::ComputeSquaredRadius_2`
- `Kernel::ComputeSquaredRadius_3`
- `Kernel::ComputeSquaredRadiusSmallestOrthogonalCircle_2`
- `Kernel::ComputeSquaredRadiusSmallestOrthogonalSphere_3`
- `Kernel::ComputeVolume_3`
- `Kernel::ComputeWeight_2`
- `Kernel::ComputeWeight_3`
- `Kernel::ComputeX_2`
- `Kernel::ComputeX_3`
- `Kernel::ComputeY_2`
- `Kernel::ComputeY_3`
- `Kernel::ComputeZ_3`
- `Kernel::ComputeXmin_2`
- `Kernel::ComputeYmin_2`
- `Kernel::ComputeXmax_2`
- `Kernel::ComputeYmax_2`
- `Kernel::ComputeYAtX_2`
- `Kernel::ConstructBarycenter_2`
- `Kernel::ConstructBarycenter_3`
- `Kernel::ConstructBaseVector_3`
- `Kernel::ConstructBbox_2`
- `Kernel::ConstructBbox_3`
- `Kernel::ConstructBisector_2`
- `Kernel::ConstructBisector_3`
- `Kernel::ConstructCartesianConstIterator_2`
- `Kernel::ConstructCartesianConstIterator_3`
- `Kernel::ConstructCenter_2`
- `Kernel::ConstructCenter_3`
- `Kernel::ConstructCentroid_2`
- `Kernel::ConstructCentroid_3`
- `Kernel::ConstructCircle_2`
- `Kernel::ConstructCircle_3`
- `Kernel::ConstructCircumcenter_2`
- `Kernel::ConstructCircumcenter_3`
- `Kernel::ConstructCrossProductVector_3`
- `Kernel::ConstructDifferenceOfVectors_2`
- `Kernel::ConstructDifferenceOfVectors_3`
- `Kernel::ConstructDirection_2`
- `Kernel::ConstructDirection_3`
- `Kernel::ConstructDividedVector_2`
- `Kernel::ConstructDividedVector_3`
- `Kernel::ConstructEquidistantLine_3`
- `Kernel::ConstructIsoCuboid_3`
- `Kernel::ConstructIsoRectangle_2`
- `Kernel::ConstructLiftedPoint_3`
- `Kernel::ConstructLine_2`
- `Kernel::ConstructLine_3`
- `Kernel::ConstructMaxVertex_2`
- `Kernel::ConstructMaxVertex_3`
- `Kernel::ConstructMidpoint_2`
- `Kernel::ConstructMidpoint_3`
- `Kernel::ConstructMinVertex_2`
- `Kernel::ConstructMinVertex_3`
- `Kernel::ConstructNormal_3`
- `Kernel::ConstructObject_2`
- `Kernel::ConstructObject_3`
- `Kernel::ConstructOppositeCircle_2`
- `Kernel::ConstructOppositeDirection_2`
- `Kernel::ConstructOppositeDirection_3`
- `Kernel::ConstructOppositeLine_2`
- `Kernel::ConstructOppositeLine_3`
- `Kernel::ConstructOppositePlane_3`
- `Kernel::ConstructOppositeRay_2`
- `Kernel::ConstructOppositeRay_3`
- `Kernel::ConstructOppositeSegment_2`
- `Kernel::ConstructOppositeSegment_3`
- `Kernel::ConstructOppositeSphere_3`
- `Kernel::ConstructOppositeTriangle_2`
- `Kernel::ConstructOppositeVector_2`
- `Kernel::ConstructOppositeVector_3`
- `Kernel::ConstructOrthogonalVector_3`
- `Kernel::ConstructPerpendicularDirection_2`
- `Kernel::ConstructPerpendicularLine_2`
- `Kernel::ConstructPerpendicularLine_3`
- `Kernel::ConstructPerpendicularPlane_3`
- `Kernel::ConstructPerpendicularVector_2`
- `Kernel::ConstructPlane_3`
- `Kernel::ConstructPointOn_2`
- `Kernel::ConstructPointOn_3`
- `Kernel::ConstructPoint_2`
- `Kernel::ConstructPoint_3`
- `Kernel::ConstructProjectedPoint_2`
- `Kernel::ConstructProjectedPoint_3`
- `Kernel::ConstructProjectedXYPoint_2`
- `Kernel::ConstructRadicalAxis_2`
- `Kernel::ConstructRadicalLine_2`
- `Kernel::ConstructRadicalPlane_3`
- `Kernel::ConstructRay_2`
- `Kernel::ConstructRay_3`
- `Kernel::ConstructScaledVector_2`
- `Kernel::ConstructScaledVector_3`
- `Kernel::ConstructSecondPoint_2`
- `Kernel::ConstructSegment_2`
- `Kernel::ConstructSegment_3`
- `Kernel::ConstructSource_2`
- `Kernel::ConstructSphere_3`
- `Kernel::ConstructSumOfVectors_2`
- `Kernel::ConstructSumOfVectors_3`
- `Kernel::ConstructSupportingPlane_3`
- `Kernel::ConstructTarget_2`
- `Kernel::ConstructTetrahedron_3`
- `Kernel::ConstructTranslatedPoint_2`
- `Kernel::ConstructTranslatedPoint_3`
- `Kernel::ConstructTriangle_2`
- `Kernel::ConstructTriangle_3`
- `Kernel::ConstructUnitNormal_3`
- `Kernel::ConstructVector_2`
- `Kernel::ConstructVector_3`
- `Kernel::ConstructVertex_2`
- `Kernel::ConstructVertex_3`
- `Kernel::ConstructWeightedCircumcenter_3`
- `Kernel::ConstructWeightedPoint_2`
- `Kernel::ConstructWeightedPoint_3`
- `Kernel::CartesianConstIterator_2`
- `Kernel::CartesianConstIterator_3`
- `Kernel::CoplanarOrientation_3`
- `Kernel::CoplanarSideOfBoundedCircle_3`
- `Kernel::Coplanar_3`
- `Kernel::CounterclockwiseInBetween_2`
- `Kernel::DoIntersect_2`
- `Kernel::DoIntersect_3`
- `Kernel::EqualXY_3`
- `Kernel::EqualX_2`
- `Kernel::EqualX_3`
- `Kernel::EqualY_2`
- `Kernel::EqualY_3`
- `Kernel::EqualZ_3`
- `Kernel::Equal_2`
- `Kernel::Equal_3`
- `Kernel::HasOnBoundary_2`
- `Kernel::HasOnBoundary_3`
- `Kernel::HasOnBoundedSide_2`
- `Kernel::HasOnBoundedSide_3`
- `Kernel::HasOnNegativeSide_2`
- `Kernel::HasOnNegativeSide_3`
- `Kernel::HasOnPositiveSide_2`
- `Kernel::HasOnPositiveSide_3`
- `Kernel::HasOnUnboundedSide_2`
- `Kernel::HasOnUnboundedSide_3`
- `Kernel::HasOn_2`
- `Kernel::HasOn_3`
- `Kernel::Intersect_2`
- `Kernel::Intersect_3`
- `Kernel::IsDegenerate_2`
- `Kernel::IsDegenerate_3`
- `Kernel::IsHorizontal_2`
- `Kernel::IsVertical_2`
- `Kernel::LeftTurn_2`
- `Kernel::LessDistanceToPoint_2`
- `Kernel::LessDistanceToPoint_3`
- `Kernel::LessRotateCCW_2`
- `Kernel::LessSignedDistanceToLine_2`
- `Kernel::LessSignedDistanceToPlane_3`
- `Kernel::LessXYZ_3`
- `Kernel::LessXY_2`
- `Kernel::LessXY_3`
- `Kernel::LessX_2`
- `Kernel::LessX_3`
- `Kernel::LessYX_2`
- `Kernel::LessY_2`
- `Kernel::LessY_3`
- `Kernel::LessZ_3`
- `Kernel::NonZeroCoordinateIndex_3`
- `Kernel::Orientation_2`
- `Kernel::Orientation_3`
- `Kernel::OrientedSide_2`
- `Kernel::OrientedSide_3`
- `Kernel::PowerSideOfBoundedPowerCircle_2`
- `Kernel::PowerSideOfBoundedPowerSphere_3`
- `Kernel::PowerSideOfOrientedPowerCircle_2`
- `Kernel::PowerSideOfOrientedPowerSphere_3`
- `Kernel::SideOfBoundedCircle_2`
- `Kernel::SideOfBoundedSphere_3`
- `Kernel::SideOfOrientedCircle_2`
- `Kernel::SideOfOrientedSphere_3`

\cgalCRPSection{Dimension Handling Tools}

- `CGAL::Ambient_dimension<T, K>`
- `CGAL::Feature_dimension<T, K>`
- `CGAL::Dimension_tag<int dim>`
- `CGAL::Dynamic_dimension_tag`

*/

/// \cgalConceptNamespace
namespace Kernel {}
