<div>hello all here:</div>
<div>i am writing to ask you about the question which is motioned in my subject:</div>
<div>here are some total energies(ry):calculation by pwscf,and the system has 15 atoms.</div>
<div> -172.2532<br>-172.25322<br>-172.25321<br>-172.25321</div>
<div><br>thank you for your time.i look forward to your reply </div>
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<div> your sincerely <br clear="all"><br>-- <br>Xu Yuehua<br>physics Department of Nanjing university<br>China </div>