 <tt>a</tt> to their complex exponential equivalents.</dd>
 <dt><b><tt>factor(a)</tt></b></dt>
	<dd> Factors <tt>a</tt>.</dd>
 <dt><b><tt>freeof(a,b)</tt></b></dt>
	<dd> Is true if the variable <tt>a</tt> is not part
  of the expression <tt>b</tt>.</dd>
 <dt><b><tt>grind(a)</tt></b></dt>
	<dd> Displays a variable or function <tt>a</tt> in a
  compact format.  When used with <tt>writefile</tt> and an editor
  outside of Maxima, it offers a scheme for producing <tt>batch</tt>
  files which include Maxima-gene