title: Graphviz and Matlab - 'dot' is not recognized as an internal or external command
body: <p>I've just installed Graphviz and update the environment variable PATH properly.
  The problem is that when I try to use Graphviz with Matlab, this error occurs: </p>
  
  <p><em>dot is not recognized as an internal or external command</em>.</p>
  
  <p>Can you help me?</p>