an>
<a name="l00105"></a>00105 <span class="comment">        @ s_atm **atoms : List of pointers to atom structures</span>
<a name="l00106"></a>00106 <span class="comment">        @ int natoms    : Number of atoms</span>
<a name="l00107"></a>00107 <span class="comment">  </span>
<a name="l00108"></a>00108 <span class="comment">   ## RETURN:</span>
<a name="l00109"></a>00109 <span class="comment">        float: mass of the molecule</span>
<a name="l00110"></a>00110 <span class="comment">  </span>
<a name="l00