title: Where can I inspect Python's math functions?
body: <p>I would like to look at the way Python does computes square roots, so I tried to find the definition for <code>math.sqrt()</code>, but I can't find it anywhere. I have looked in <code>_math.c</code>, <code>mathmodule.c</code>, and elsewhere.</p>
  
  <p>I know that python uses C's math functions, but are these somewhere in the Python distribution, or are they linked to code elsewhere? I am using Mac OS X.</p>
  
  <p>Where is the algorithm in <code>math.sqrt()</code>?</p>