function exp_ode_test ( )

%*****************************************************************************80
%
%% exp_ode_test() solves exp_ode().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    22 April 2021
%
%  Author:
%
%    John Burkardt
%
  addpath ( '../exp_ode' );

  timestamp ( );
  fprintf ( 1, '\n' );
  fprintf ( 1, 'exp_ode_test():\n' );
  fprintf ( 1, '  MATLAB/Octave version "%s"\n', version ( ) );
  fprintf ( 1, '  Solve exp_ode().\n' );
%
%  Get default parameter values.
%
  [ alpha, t0, y0, tstop ] = exp_parameters ( );
%
%  Reset TSTOP to 5.
%
  tstop = 5.0;
  [ alpha, t0, y0, tstop ] = exp_parameters ( alpha, t0, y0, tstop );

  n = 80;

  fprintf ( 1, '\n' );
  fprintf ( 1, '  parameters:\n' );
  fprintf ( 1, '    alpha = %g\n', alpha );
  fprintf ( 1, '    t0    = %g\n', t0 );
  fprintf ( 1, '    y0    = %g\n', y0 );
  fprintf ( 1, '    n     = %d\n', n );
  fprintf ( 1, '    tstop = %g\n', tstop );

  exp_euler ( n );
  exp_backward_euler ( n );
  exp_midpoint ( n );
  exp_ode45 ( );
%
%  Terminate.
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'exp_ode_test():\n' );
  fprintf ( 1, '  Normal end of execution.\n' );
  timestamp ( );

  rmpath ( '../exp_ode' );

  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

