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Dear QE users<br><br>Is there any variable alongside the 'relax' for these usages ?! :  <br><br>                            1. fixing or changing the cell symmetry through the calculation.<br>                            2. fixing or optimizing the cell size through the calculation.<br>                            3. optimizing all positions without considering any restrictions.<br><br>Many Thanks<br>Masoud Nahali<br>Sharif University of Technology<br>                                        <br /><hr />Hotmail: Trusted email with Microsoft’s powerful SPAM protection. <a href='https://signup.live.com/signup.aspx?id=60969' target='_new'>Sign up now.</a></body>
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