title: math.sin incorrect result
body: <pre><code>&gt;&gt;&gt; import math
  &gt;&gt;&gt; math.sin(68)
  -0.897927680689
  </code></pre>
  
  <p>But</p>
  
  <pre><code>sin(68) = 0.927 (3 decimal places)
  </code></pre>
  
  <p>Any ideas about why I am getting this result?<br>
  Thanks.</p>