function r8cb_dif2_test ( )

%*****************************************************************************80
%
%% r8cb_dif2_test() tests r8cb_dif2().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    20 August 2022
%
%  Author:
%
%    John Burkardt
%
  m = 5;
  n = 5;
  ml = 1;
  mu = 1;

  fprintf ( 1, '\n' );
  fprintf ( 1, 'r8cb_dif2_test():\n' );
  fprintf ( 1, '  r8cb_dif2() sets the second difference matrix as an R8CB matrix;\n' );
  fprintf ( 1, '\n' );
  fprintf ( 1, '  Matrix rows M      = %d\n', m );
  fprintf ( 1, '  Matrix columns N   = %d\n', n );
  fprintf ( 1, '  Lower bandwidth ML = %d\n', ml );
  fprintf ( 1, '  Upper bandwidth MU = %d\n', mu );

  a = r8cb_dif2 ( m, n );

  r8cb_print ( m, n, ml, mu, a, '  The R8CB zero matrix:' );

  return
end
