title: Matlab Basic Function
body: <p>I'm trying to read some matlab code, but I'm new to it.  How do I figure out what the input parameters are?</p>
  
  <pre><code>    function [shortly, longly] = lyapunov(signal,timestep,FreqSamp,segmentapproach, duratsegmen, dodivergence)
  
  //lots of code under here but I couldn't find out where signal, timestep, etc come from.
  </code></pre>