title: Are "tf.nn.relu(A)" and "tf.maximum(A, 0)" the same?
body: <p>Here are two codes.</p>
  
  <pre><code>tf.nn.relu("output of previous layer")
  
  tf.maximum("output of previous layer", 0)
  </code></pre>
  
  <p>Do these two behave exactly the same?</p>
  
  <p>In other words, is it possible to replace one with the other?</p>