title: Hanning window values doesnt match in Python and Matlab
body: <p>I've been working in a low-pass filter that should be filter a .wav file using Hann window and some custom digital filters.</p>
  
  <p>I did the whole code for Matlab and today I did write it in Python, but when I started to compare the values of the hann function in Python x Matlab it doesnt have ANYTHING to do...</p>
  
  <pre class="lang-py prettyprint-override"><code>#python hanning
  hanning(10)
  # array([0., 0.11697778, 0.41317591, 0.75, 0.96984631, 0.96984631, 0.75, 0.41317591, 0.11697778, 0.])
  </code></pre>
  
  <pre class="lang-matlab prettyprint-override"><code>%matlab hanning
  hanning(10)
  % ans =
  %    0.0794
  %    0.2923
  %    0.5712
  %    0.8274
  %    0.9797
  %    0.9797
  %    0.8274
  %    0.5712
  %    0.2923
  %    0.0794
  </code></pre>