ple, the expression: <br>
  <em>
  begin <br>
  <div class="first_align">
   A = 10, <br>
   B = 20, <br>
   C = 30, <br>
   E = A + B + C, <br>
   A <br>
  </div>
  end. <br>
  </em>
  can be simplified by this refactoring to: <br>
  <em>
  begin <br>
  <div class="first_align">
   A = 10, <br>
   A <br>
  </div>
  end. <br>
  </em>
<h2><a name="index">Function Index</a></h2>
<table width="100%" border="1" cellspacing="0" cellpadding="2" summary="function index"><tr><td valign="top"><a href="#rules-2">rule