message: Print result values for theoretical, numerical
diff: @@ -323,6 +323,7 @@ def compute_gradient(f, x, delta=1e-3):
  theoretical, numerical = tf.test.compute_gradient(test_func, [1.0])
  theoretical, numerical
  + # ((array([[2.]], dtype=float32),), (array([[2.000004]], dtype=float32),))
  ```
  """
  if not isinstance(x, list):
  