Dear all,<br><br>I cannot find any documentation about vdw code. Please describe basic approaches used for polarizability calculations. <br>Examples 33 and 34 illustrates how to use ph.x and vdw.x to calculate polarizability of methane molecules. But results do not agree esecially for static value. Which method is better?<br>
<br>Thank you,<br><br>Olga<br>