<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt"><div><br> Hi.<br><br>I need to know how to use LDA+U method for exchange and correlation and when it is suitable to use?</div><div> </div><div><br>Regards: <br>Yasir Ali<br><br></div></div></body></html>