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    <div class="moz-cite-prefix">Hi,<br>
      <br>
      I don't understand your question. You give the definition of the
      force in you email.<br>
      Maybe you wanted to ask how it is calculated and in which file?
      Hundreds of files are involved in this. I don't see how looking at
      files would help you understand what you need to do.<br>
      <br>
      Cheers,<br>
      <br>
      Berk<br>
      <br>
      On 2016-12-02 17:00, Elena della Valle wrote:<br>
    </div>
    <blockquote cite="mid:4b50c6b6-f3d7-5da1-69de-e7da5d5d546f@yahoo.it"
      type="cite">
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      <div class="moz-forward-container"><br>
        <br>
        -------- Messaggio Inoltrato --------
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              <th align="RIGHT" nowrap="nowrap" valign="BASELINE">Oggetto:
              </th>
              <td>Force Definition f</td>
            </tr>
            <tr>
              <th align="RIGHT" nowrap="nowrap" valign="BASELINE">Data:
              </th>
              <td>Wed, 30 Nov 2016 10:40:19 +0000 (UTC)</td>
            </tr>
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              <th align="RIGHT" nowrap="nowrap" valign="BASELINE">Mittente:
              </th>
              <td>Elena Della valle <a moz-do-not-send="true"
                  class="moz-txt-link-rfc2396E"
                  href="mailto:elena.dv46@yahoo.it">&lt;elena.dv46@yahoo.it&gt;</a></td>
            </tr>
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              <th align="RIGHT" nowrap="nowrap" valign="BASELINE">Rispondi-a:
              </th>
              <td>Elena Della valle <a moz-do-not-send="true"
                  class="moz-txt-link-rfc2396E"
                  href="mailto:elena.dv46@yahoo.it">&lt;elena.dv46@yahoo.it&gt;</a></td>
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              <th align="RIGHT" nowrap="nowrap" valign="BASELINE">A: </th>
              <td><a moz-do-not-send="true"
                  class="moz-txt-link-abbreviated"
                  href="mailto:gromacs.org_gmx-developers@maillist.sys.kth.se">gromacs.org_gmx-developers@maillist.sys.kth.se</a>
                <a moz-do-not-send="true" class="moz-txt-link-rfc2396E"
href="mailto:gromacs.org_gmx-developers@maillist.sys.kth.se">&lt;gromacs.org_gmx-developers@maillist.sys.kth.se&gt;</a>,
                <a moz-do-not-send="true"
                  class="moz-txt-link-abbreviated"
                  href="mailto:gromacs.org_gmx-users@maillist.sys.kth.se">gromacs.org_gmx-users@maillist.sys.kth.se</a>
                <a moz-do-not-send="true" class="moz-txt-link-rfc2396E"
href="mailto:gromacs.org_gmx-users@maillist.sys.kth.se">&lt;gromacs.org_gmx-users@maillist.sys.kth.se&gt;</a></td>
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          <div id="yui_3_16_0_ym19_1_1480501873358_2792">Hi all,</div>
          <div id="yui_3_16_0_ym19_1_1480501873358_2792" dir="ltr">I
            have a question regarding the definition of the therm force
            f in the gromacs code. More in details i'm working modifying
            the upgrade of the positions and velocities in the Verlet
            alghortim. In these equations a therm regarding the forse i
            used "f[n]" this f means the "-partialderivateV/dr". In
            whice file in the gromacs code there is the definition of
            the force, to understand how to take it into account.</div>
          <div id="yui_3_16_0_ym19_1_1480501873358_2792" dir="ltr">Thanks
            in advance</div>
          <div id="yui_3_16_0_ym19_1_1480501873358_2792" dir="ltr">Best
            Regards</div>
          <div id="yui_3_16_0_ym19_1_1480501873358_2792" dir="ltr">Elena
            della Valle</div>
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