function lagrange_approx_1d_test ( )

%*****************************************************************************80
%
%% lagrange_approx_1d_test() tests lagrange_approx_1d().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    06 February 2019
%
%  Author:
%
%    John Burkardt
%
  addpath ( '../lagrange_approx_1d' );
  addpath ( '../test_interp_1d' )
  addpath ( '../r8lib' )

  timestamp ( );
  fprintf ( 1, '\n' );
  fprintf ( 1, 'lagrange_approx_1d_test():\n' );
  fprintf ( 1, '  MATLAB/Octave version %s\n', version ( ) );
  fprintf ( 1, '  Test lagrange_approx_1d().\n' );
  fprintf ( 1, '  These tests need TEST_INTERP_1D.\n' );

  prob_num = p00_prob_num ( );
  for prob = 1 : prob_num
    for m = [ 0, 1, 2, 3, 4, 8, 16 ]
      for nd = [ 16, 64, 1000 ]
        lagrange_approx_1d_test02 ( prob, m, nd );
      end
    end
  end

  prob_num = p00_prob_num ( );
  for prob = 1 : prob_num
    for m = [ 0, 1, 2, 3, 4, 8, 16 ]
      for nd = [ 16, 64, 1000 ]
        lagrange_approx_1d_test03 ( prob, m, nd );
      end
    end
  end
%
%  Terminate.
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'lagrange_approx_1d_test():\n' );
  fprintf ( 1, '  Normal end of execution.\n' );
  fprintf ( 1, '\n' );
  timestamp ( );

  rmpath ( '../lagrange_approx_1d' );
  rmpath ( '../test_interp_1d' )
  rmpath ( '../r8lib' )

  return
end
function timestamp ( )

%*****************************************************************************80
%
%% timestamp() prints the current YMDHMS date as a timestamp.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    14 February 2003
%
%  Author:
%
%    John Burkardt
%
  t = now;
  c = datevec ( t );
  s = datestr ( c, 0 );
  fprintf ( 1, '%s\n', s );

  return
end
