Binary file slides/slides04.pdf has changed

--- a/slides/slides04.tex	Sun Oct 19 09:51:35 2025 +0200
+++ b/slides/slides04.tex	Mon Oct 20 22:18:21 2025 +0200
@@ -39,10 +39,10 @@
   \begin{center}
   \begin{tabular}{ll}
     Email:  & christian.urban at kcl.ac.uk\\
-     Office Hour: & Fridays 12 -- 14\\  
+     Office Hour: & Friday 11:30 -- 12:30\\
   Location: & N7.07 (North Wing, Bush House)\\
   Slides \& Progs: & KEATS\\
-  Pollev: & \texttt{\alert{https://pollev.com/cfltutoratki576}}\\  
+  %%Pollev: & \texttt{\alert{https://pollev.com/cfltutoratki576}}\\  
   \end{tabular}
   \end{center}
 
@@ -61,6 +61,11 @@
       };
     \end{tikzpicture}
   \end{center}
+
+\begin{textblock}{5}(12,3)
+  \includegraphics[scale=0.35]{qr01}\\
+  \small{}Wifi: IET-Guest\\
+\end{textblock}
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
@@ -1676,6 +1681,8 @@
 \begin{frame}<1-28>[c]
 \end{frame}
 
+\end{document}
+
 \begin{frame}[c]
   \frametitle{Week 3 Feedback}
   \begin{center}