title: Octave: LaTeX tics
body: <p>In GNU Octave I would like to set the tics of a plot as fractions. So instead of 0.0078125 (which is equal to 1/128) I would like to write "\frac 1 128". </p>
  
  <p>I tried already </p>
  
  <pre><code>set(gca,'xTickLabel',{'\frac 1 128'});
  </code></pre>
  
  <p>but it does not work. The text '\frac 1 128' is not interpreted as LaTeX code.</p>