title: Why does numpy std() give a different result to matlab std()?
body: <p>I try to convert matlab code to numpy and figured out that numpy has a different result with the std function.</p>
  
  <p>in matlab</p>
  
  <pre><code>std([1,3,4,6])
  ans =  2.0817
  </code></pre>
  
  <p>in numpy</p>
  
  <pre><code>np.std([1,3,4,6])
  1.8027756377319946
  </code></pre>
  
  <p>Is this normal? And how should I handle this?</p>