class="col-md-3 hidden-xs hidden-sm" id="sidebar">
    <h2>Contents</h2>
    <ul class="nav nav-pills nav-stacked">
      <li><a href="#arguments">Arguments</a></li>
      
      <li><a href="#value">Value</a></li>
      
      <li><a href="#examples">Examples</a></li>
    </ul>

    <h2>Author</h2>
    
Felipe Campelo (<a href='mailto:fcampelo@ufmg.br'>fcampelo@ufmg.br</a>)

  </div>
</div>

      <footer>
      <div class="copyright">
  <p>Developed by Felipe Campelo, Fernanda Takahashi.</p>
</div>

<div 