function pendulum_ode_test ( )

%*****************************************************************************80
%
%% pendulum_ode_test tests pendulum_ode.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    31 October 2020
%
%  Author:
%
%    John Burkardt
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'pendulum_ode_test:\n' );
  fprintf ( 1, '  MATLAB/Octave version %s\n', version ( ) );
  fprintf ( 1, '  Test pendulum_ode.\n' );

  [ g, l, m, t0, y0 ] = pendulum_parameters ( );

  fprintf ( 1, '\n' );
  fprintf ( 1, '  parameters:\n' );
  fprintf ( 1, '    gravity (m/s^2) = %g\n', g );
  fprintf ( 1, '    length (m)      = %g\n', l );
  fprintf ( 1, '    mass (g)        = %g\n', m );
  fprintf ( 1, '    t0 (s)          = %g\n', t0 );
  fprintf ( 1, '    u0 (rad)        = %g\n', y0(1) );
  fprintf ( 1, '    v0 (rad/s)      = %g\n', y0(2) );

  pendulum_ode45 ( );
%
%  Terminate.
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'pendulum_ode_test:\n' );
  fprintf ( 1, '  Normal end of execution.\n' );

  return
end

