<div dir="ltr">Thank you very much <div>Regards</div><div>Simin<br><br>On Friday, June 8, 2018 at 3:18:29 PM UTC+2, jgh wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Hi
<br>
<br>NUMERICAL: calculation by finite differences
<br>ANALYTICAL: use a formula according to the energy functional applied.
<br>
<br>regards
<br>
<br>Juerg
<br>------------------------------<wbr>------------------------------<wbr>--
<br>Juerg Hutter                         Phone : ++41 44 635 4491
<br>Institut für Chemie C                FAX   : ++41 44 635 6838
<br>Universität Zürich                   E-mail: <a href="javascript:" target="_blank" gdf-obfuscated-mailto="HzOpze_5AgAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">hut...@chem.uzh.ch</a>
<br>Winterthurerstrasse 190
<br>CH-8057 Zürich, Switzerland
<br>------------------------------<wbr>------------------------------<wbr>---
<br>
<br>-----<a href="javascript:" target="_blank" gdf-obfuscated-mailto="HzOpze_5AgAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">cp...@googlegroups.com</a> wrote: -----
<br>To: cp2k <<a href="javascript:" target="_blank" gdf-obfuscated-mailto="HzOpze_5AgAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">cp...@googlegroups.com</a>>
<br>From: simin pahlavi 
<br>Sent by: <a href="javascript:" target="_blank" gdf-obfuscated-mailto="HzOpze_5AgAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">cp...@googlegroups.com</a>
<br>Date: 06/08/2018 02:52PM
<br>Subject: Re: [CP2K:10400] STRESS TENSOR
<br>
<br>Dear Juerg,
<br>Thank you very much for your reply.
<br>Could you please let me know where I can find the detail of the method.
<br>I am new in Md and I want to know what is ANALYTICAL or NUMERICAL calculations for example.
<br>The only algorithm that I know is viral equations to calculate the Pressure in MD simulation
<br>Best regards
<br>Simin
<br>On Friday, June 8, 2018 at 2:25:58 PM UTC+2, jgh wrote:Hi 
<br> 
<br>definitely use ANALYTICAL. 
<br> 
<br>NUMERICAL is only for debugging and for some very rare cases. 
<br> 
<br>Juerg 
<br>------------------------------<wbr>------------------------------<wbr>-- 
<br>Juerg Hutter                         Phone : ++41 44 635 4491 
<br>Institut für Chemie C                FAX   : ++41 44 635 6838 
<br>Universität Zürich                   E-mail: <a>hut...@chem.uzh.ch</a> 
<br>Winterthurerstrasse 190 
<br>CH-8057 Zürich, Switzerland 
<br>------------------------------<wbr>------------------------------<wbr>--- 
<br> 
<br>-----<a>cp...@googlegroups.com</a> wrote: ----- 
<br>To: cp2k <<a>cp...@googlegroups.com</a>> 
<br>From: simin pahlavi  
<br>Sent by: <a>cp...@googlegroups.com</a> 
<br>Date: 06/08/2018 02:16PM 
<br>Subject: [CP2K:10396] STRESS TENSOR 
<br> 
<br>Hello CP2K users, 
<br>I have to simulate a system in high pressure condition with ab initio molecular dynamics in NPT ensamble. 
<br>I am new in cp2k and I wanted to ask what kind of STRESS TENSOR calculation is more relevant? 
<br>NUMERICAL? ANALYTICAL ?... 
<br> Thanks in advance  
<br>Simin   
<br>  --  
<br> You received this message because you are subscribed to the Google Groups "cp2k" group. 
<br> To unsubscribe from this group and stop receiving emails from it, send an email to <a>cp2k+...@googlegroups.com</a>. 
<br> To post to this group, send email to <a>cp...@googlegroups.com</a>. 
<br> Visit this group at <a href="https://groups.google.com/group/cp2k" target="_blank" rel="nofollow" onmousedown="this.href='https://groups.google.com/group/cp2k';return true;" onclick="this.href='https://groups.google.com/group/cp2k';return true;">https://groups.google.com/<wbr>group/cp2k</a>. 
<br> For more options, visit <a href="https://groups.google.com/d/optout" target="_blank" rel="nofollow" onmousedown="this.href='https://groups.google.com/d/optout';return true;" onclick="this.href='https://groups.google.com/d/optout';return true;">https://groups.google.com/d/<wbr>optout</a>. 
<br>  
<br>  
<br>  -- 
<br> You received this message because you are subscribed to the Google Groups "cp2k" group.
<br> To unsubscribe from this group and stop receiving emails from it, send an email to <a href="javascript:" target="_blank" gdf-obfuscated-mailto="HzOpze_5AgAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">cp2k+uns...@googlegroups.<wbr>com</a>.
<br> To post to this group, send email to <a href="javascript:" target="_blank" gdf-obfuscated-mailto="HzOpze_5AgAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">cp...@googlegroups.com</a>.
<br> Visit this group at <a href="https://groups.google.com/group/cp2k" target="_blank" rel="nofollow" onmousedown="this.href='https://groups.google.com/group/cp2k';return true;" onclick="this.href='https://groups.google.com/group/cp2k';return true;">https://groups.google.com/<wbr>group/cp2k</a>.
<br> For more options, visit <a href="https://groups.google.com/d/optout" target="_blank" rel="nofollow" onmousedown="this.href='https://groups.google.com/d/optout';return true;" onclick="this.href='https://groups.google.com/d/optout';return true;">https://groups.google.com/d/<wbr>optout</a>.
<br> 
<br></blockquote></div></div>