function differ_test ( )

%*****************************************************************************80
%
%% DIFFER_TEST tests DIFFER.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    05 January 2019
%
%  Author:
%
%    John Burkardt
%
  addpath ( '../differ' );

  timestamp ( );
  fprintf ( 1, '\n' );
  fprintf ( 1, 'DIFFER_TEST\n' );
  fprintf ( 1, '  MATLAB version.\n' );
  fprintf ( 1, '  Test DIFFERy.\n' );

  differ_matrix_test ( );
  differ_test02 ( );
  differ_test03 ( );
  differ_test04 ( );
  differ_test05 ( );
%
%  Terminate.
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'DIFFER_TEST\n' );
  fprintf ( 1, '  Normal end of execution.\n' );
  fprintf ( 1, '\n' );
  timestamp ( );

  rmpath ( '../differ' );

  return
end

