def METHOD_NAME(print_results = False, save_results = False):
  res = sun_earth_result()
  if print_results:
    print(res)
  if save_results:
    np.savetxt("res.txt", res)
  assert(np.abs(res[:,1]).max() < 1e-14)
  assert(np.abs(res[:,2]).max() < 1e-3)