<div dir="ltr">Dear Maxim, if you want to fix the cell angles and cell parameter during a geometry optimization. So, do you want optimize only the atomic positions?  In this case, try to perform relax calculation (calculation = 'relax')  and not vc-relax <div><br></div><div>Best</div><div><br></div><div>Arles V. Gil Rebaza</div><div>Instituto de Física La Plata</div><div>La Plata - Argentina</div></div><div class="gmail_extra"><br><div class="gmail_quote">2017-09-01 8:56 GMT-03:00 Maxim Arsentev <span dir="ltr"><<a href="mailto:arsentev@isc.nw.ru" target="_blank">arsentev@isc.nw.ru</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  

    
  
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    <p>Dear users and developers,</p>
    <p>I need fix cell angle and cell parameter during geometry
      optimization,</p>
    <p>i analyzed cell dofree and not found needed variables.<br>
    </p>
    <div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Bests,<br>
      Maxim Arsent'ev, Ph.D. (Chemistry)</div>
    <div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Laboratory of research
      of nanostructures</div>
    <div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">Institute of Silicate
      Chemistry of RAS</div>
  </div>

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