title: Matlab double() returning 0 for sym
body: <p>Here is the code that is giving me trouble. </p>
  
  <pre class="lang-matlab prettyprint-override"><code>
  &gt;&gt; x_flex
  
  x_flex =
  
  sigma == 140512308373959475200/8004146304532579
  
  &gt;&gt; double(x_flex)
  
  ans =
  
       0
  </code></pre>
  
  <p>Where <code>x_flex</code> is a <code>1x1 sym</code>.</p>
  
  <p>What I want is for matlab to do the division and return a number in this case: <code>1.7555e+04</code>.</p>