returned.  For brevity, if <tt>a</tt> is an equation of the form
  <tt>c</tt><tt> = </tt><tt>0</tt>, it may be abbreviated simply by the expression
  <tt>c</tt>.</dd>
 <dt><b><tt>string(a)</tt></b></dt>
	<dd> Converts <tt>a</tt> to Maxima's linear notation
  (similar to Fortran's) just as if it had been typed in and puts <tt>
    a</tt> into the buffer for possible editing.  The <tt>string</tt>'ed
  expression should not be used in a computation.</dd>
 <dt><b><tt>stringout(a,b1,b2,...,bn)</tt></b></dt>
	<dd