r18035 - /website/faq.html -- November 26, 2012 - 14:32

Author: bugman
Date: Mon Nov 26 14:32:12 2012
New Revision: 18035

URL: http://svn.gna.org/viewcvs/relax?rev=18035&view=rev
Log:
Updates to the FAQ webpage (http://www.nmr-relax.com/faq.html).

This includes an index at the top and a new section about the hidden radian 
unit with links to:

http://permalink.gmane.org/gmane.science.nmr.relax.user/723
http://marc.info/?l=relax-users&m=135070801026465&w=2
https://mail.gna.org/public/relax-users/2009-01/msg00000.html
http://www.mail-archive.com/relax-users@xxxxxxx/msg00582.html

for the hidden radian units in NMR, and:

http://permalink.gmane.org/gmane.science.nmr.relax.devel/1034
https://mail.gna.org/public/relax-devel/2007-06/msg00012.html
http://www.mail-archive.com/relax-devel@xxxxxxx/msg00975.html

for the application to Abragam's relaxation equations.


Modified:
    website/faq.html

Modified: website/faq.html
URL: 
http://svn.gna.org/viewcvs/relax/website/faq.html?rev=18035&r1=18034&r2=18035&view=diff
==============================================================================
--- website/faq.html (original)
+++ website/faq.html Mon Nov 26 14:32:12 2012
@@ -26,7 +26,15 @@
   <div class="main_box">
     <h1>Frequently Asked Questions (FAQ)</h1>
 
-     <h3>How do I obtain the newest relax source code?</h3>
+    <ul>
+    <li><a href="faq.html#source_code">How do I obtain the newest relax 
source code?</a></li>
+    <li><a href="faq.html#source_code_branch">How do I check out a relax 
source code branch?</a></li>
+    <li><a href="faq.html#radian_units">The equations (or units) used by 
relax are incorrect!</a></li>
+    </ul>
+  </div>
+
+  <div class="main_box">
+     <h3 id="source_code">How do I obtain the newest relax source code?</h3>
 
       <p>To obtain the most up to date copy of the relax source code without 
waiting for a new release, the new code can be checked out from the 
repository by typing:</p>
       <p><em>$ svn co svn://svn.gna.org/svn/relax/trunk relax-trunk</em></p>
@@ -34,15 +42,21 @@
       <p><em>$ svn co http://svn.gna.org/svn/relax/trunk relax-trunk</em></p>
       <p>If you already have a checked out copy, try typing:</p>
       <p><em>$ svn up</em></p>
-      <p>This requires installation of the <a 
href="http://subversion.tigris.org/";>subversion program</a>.  If the fitting 
of the R<sub>1</sub> and R<sub>2</sub> NMR relaxation rates is required, the 
relaxation curve-fitting C modules will need to be compiled using <a 
href='http://www.scons.org/'>SCons</a>.  For more information, see the 
compilation subsection of the <a 
href="http://www.nmr-relax.com/download.html#Source_code_repository";>relax 
downloads</a> page.</p>
+      <p>This requires installation of the <a 
href="http://subversion.tigris.org/";>subversion program</a>.  If the fitting 
of the R<sub>1</sub> and R<sub>2</sub> NMR relaxation rates is required, the 
relaxation curve-fitting C modules will need to be compiled using <a 
href="http://www.scons.org/";>SCons</a>.  For more information, see the 
compilation subsection of the <a 
href="http://www.nmr-relax.com/download.html#Source_code_repository";>relax 
downloads</a> page.</p>
 
-     <h3>How do I check out a relax source code branch?</h3>
+     <h3 id="source_code_branch">How do I check out a relax source code 
branch?</h3>
 
       <p>Sometimes code for a new analysis type or a new feature is 
developed within a dedicated branch within the <a 
href="http://svn.gna.org/viewcvs/relax/";>relax repository</a>.  To obtain for 
example the incomplete relaxation dispersion relax branch, type:</p>
       <p><em>$ svn co 
svn://svn.gna.org/svn/relax/branches/relax_disp</em></p>
       <p>or:</p>
       <p><em>$ svn co 
http://svn.gna.org/svn/relax/branches/relax_disp</em></p>
       <p>This will create the directory <em>relax_disp</em> containing the 
source code of the branch.</p>
+
+     <h3 id="radian_units">The equations (or units) used by relax are 
incorrect!</h3>
+
+     <p>This is more a commonly stated point rather than a question.  But if 
you believe that NMR relaxation data should be measured in Hertz, that the 
molecular correlation times or internal correlation times do not contain 
radian units, that the units for spherical harmonics is not radians, or that 
the rotation power spectral density functions do not contain radian units, 
the following links are for you.</p>
+     <p>Radians are a dimensionless and hidden unit ubiquitous to NMR.  A <a 
href="http://permalink.gmane.org/gmane.science.nmr.relax.user/723";>detailed 
description of this hidden radian unit as used in NMR</a> has been written as 
reference for understanding the unit in the context of the SI system.  Copies 
of this description can also be found <a 
href="http://marc.info/?l=relax-users&amp;m=135070801026465&amp;w=2";>here</a>,
 <a 
href="https://mail.gna.org/public/relax-users/2009-01/msg00000.html";>here</a> 
or <a 
href="http://www.mail-archive.com/relax-users@xxxxxxx/msg00582.html";>here</a>.</p>
+     <p>A <a 
href="http://permalink.gmane.org/gmane.science.nmr.relax.devel/1034";>detailed 
derivation in the context of Abragam's relaxation equations</a> may also 
help.  Copies of this derivation can be found <a 
href="https://mail.gna.org/public/relax-devel/2007-06/msg00012.html";>here</a> 
or <a 
href="http://www.mail-archive.com/relax-devel@xxxxxxx/msg00975.html";>here</a> 
as well.</p>
 
   </div>