function L = digraph_arc_example_moler ( )

%*****************************************************************************80
%
%% digraph_arc_example_moler() returns the arc list for a network of Moler.
%
%  Discussion:
%
%    This matrix appears on page 5 of the reference.
%
%    We added a self-link for node 5, which otherwise has no outlinks.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    17 April 2026
%
%  Author:
%
%    John Burkardt
%
%  Reference:
%
%    Cleve Moler,
%    Experiments with Matlab,
%    Chapter 7: Google PageRank,
%    https://www.mathworks.com/moler/exm/chapters/pagerank.pdf
%
%  Output:
%
%    integer L(10,2), the arc list.
%
  arc_num = 10;

  L = [ 1, 1, 2, 2, 3, 3, 3, 4, 5, 6; ...
        2, 6, 3, 4, 4, 5, 6, 1, 5, 1 ];

  return
end
