/*!
\example Optimal_transportation_reconstruction_2/otr2_simplest_example.cpp
\example Optimal_transportation_reconstruction_2/otr2_simplest_example_with_tolerance.cpp
\example Optimal_transportation_reconstruction_2/otr2_list_output_example.cpp
\example Optimal_transportation_reconstruction_2/otr2_indexed_output_example.cpp
\example Optimal_transportation_reconstruction_2/otr2_mass_example.cpp
*/
