function etdrk4_test ( )

%*****************************************************************************80
%
%% etdrk4_test() tests etdrk4().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    12 April 2020
%
%  Author:
%
%    John Burkardt
%
  addpath ( '../etdrk4' );

  timestamp ( );
  fprintf ( 1, '\n' );
  fprintf ( 1, 'etdrk4_test():\n' );
  fprintf ( 1, '  MATLAB/Octave version %s.\n', version ( ) );
  fprintf ( 1, '  Test etdrk4().\n' );

  allencahn_etdrk4_test ( );
  allencahn_euler_test ( );
  burgers_etdrk4_test ( );
  cheb_test ( );
  cheb_plot_test ( );
  kdv_etdrk4_test ( );
  kursiv_etdrk4_test ( );
%
%  Terminate.
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'etdrk4_test():\n' );
  fprintf ( 1, '  Normal end of execution.\n' );
  fprintf ( 1, '\n' );
  timestamp ( );

  rmpath ( '../etdrk4' );

  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

