title: Octave: Install symbolic package, 'int' undefined
body: <p>I successfully installed symbolic package with <code>sudo apt-get install octave-symbolic</code>, but still it doesn;t recogbize the int function for integration:</p>
  
  <pre><code>octave:7&gt; symbols
  octave:8&gt; x=sym('x')
  x =
  
  x
  octave:9&gt; int('x')
  error: `int' undefined near line 9 column 1
  </code></pre>
  
  <p>So, how can I use the integration function? Is the function different from MATLAB?</p>