Update documentation

_sources/intro.md

@@ -32,7 +32,7 @@ If you like the material, show it by giving a star on github.
 
 ## Literature
 
-* Lecture notes Schöberl and Faustmann+Schöberl 
+* Lecture notes Schöberl and Faustmann+Schöberl (available in TU-Wien TUWEL)
 
 Books:
 
@@ -68,6 +68,17 @@ Known issues are
 - If you get an error like `externally-managed-environment`, then either use
 virtual environments, or add the flag `--break-system-packages` to the pip command, see [explanation](https://veronneau.org/python-311-pip-and-breaking-system-packages.html)
 
+- If you have conflicts with other packages, you may install NGSolve in a [virtual environment](https://docs.python.org/3/library/venv.html#creating-virtual-environments). For example I did
+
+      python3 -m venv /Users/joachim/numpde
+      source /Users/joachim/numpde/bin/activate
+
+- If NGSolve compuatations are working, but you don't get the rendering: For jupyter notebook version < 7.0.0 you have to run additionally
+
+      jupyter nbextension install --user --py webgui_jupyter_widgets
+      jupyter nbextension enable --user --py webgui_jupyter_widgets
+
+
 
 If local installation does not work, there are alternatives:
 

intro.html

@@ -487,7 +487,7 @@ <h1>An Interactive Introduction to the Finite Element Method<a class="headerlink
 <section id="literature">
 <h2>Literature<a class="headerlink" href="#literature" title="Link to this heading">#</a></h2>
 <ul class="simple">
-<li><p>Lecture notes Schöberl and Faustmann+Schöberl</p></li>
+<li><p>Lecture notes Schöberl and Faustmann+Schöberl (available in TU-Wien TUWEL)</p></li>
 </ul>
 <p>Books:</p>
 <ul class="simple">
@@ -517,10 +517,22 @@ <h2>Installing NGSolve<a class="headerlink" href="#installing-ngsolve" title="Li
 </pre></div>
 </div>
 <p>Known issues are</p>
-<ul class="simple">
+<ul>
 <li><p>Use pip3 instead of pip if there is no pip</p></li>
 <li><p>If you get an error like <code class="docutils literal notranslate"><span class="pre">externally-managed-environment</span></code>, then either use
 virtual environments, or add the flag <code class="docutils literal notranslate"><span class="pre">--break-system-packages</span></code> to the pip command, see <a class="reference external" href="https://veronneau.org/python-311-pip-and-breaking-system-packages.html">explanation</a></p></li>
+<li><p>If you have conflicts with other packages, you may install NGSolve in a <a class="reference external" href="https://docs.python.org/3/library/venv.html#creating-virtual-environments">virtual environment</a>. For example I did</p>
+<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>python3 -m venv /Users/joachim/numpde
+source /Users/joachim/numpde/bin/activate
+</pre></div>
+</div>
+</li>
+<li><p>If NGSolve compuatations are working, but you don’t get the rendering: For jupyter notebook version &lt; 7.0.0 you have to run additionally</p>
+<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>jupyter nbextension install --user --py webgui_jupyter_widgets
+jupyter nbextension enable --user --py webgui_jupyter_widgets
+</pre></div>
+</div>
+</li>
 </ul>
 <p>If local installation does not work, there are alternatives:</p>
 <ul>