title: Difference between numpy.round and numpy.around
body: <p>So, I was searching for ways to round off all the numbers in a numpy array. I found 2 similar functions, numpy.round and numpy.around. Both take seemingly same arguments for a beginner like me. </p>
  
  <p>So what is the difference between these two in terms of:</p>
  
  <ul>
  <li>General difference</li>
  <li>Speed</li>
  <li>Accuracy</li>
  <li>Being used in practice</li>
  </ul>