/*!
\example Convex_hull_2/array_convex_hull_2.cpp
\example Convex_hull_2/ch_from_cin_to_cout.cpp
\example Convex_hull_2/ch_graham_anderson.cpp
\example Convex_hull_2/ch_timing.cpp
\example Convex_hull_2/iostream_convex_hull_2.cpp
\example Convex_hull_2/vector_convex_hull_2.cpp
*/
