diff --git a/Lectures_my/NumMet/Lecture2/images/Runge.png b/Lectures_my/NumMet/Lecture2/images/Runge.png
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--- /dev/null
+++ b/Lectures_my/NumMet/Lecture2/images/Runge.png
Binary files differ
diff --git a/Lectures_my/NumMet/Lecture2/mchrzasz.tex b/Lectures_my/NumMet/Lecture2/mchrzasz.tex
index f1e8dae..27e2178 100644
--- a/Lectures_my/NumMet/Lecture2/mchrzasz.tex
+++ b/Lectures_my/NumMet/Lecture2/mchrzasz.tex
@@ -578,9 +578,22 @@
 
 \end{small}
 \end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}\frametitle{Runge oscillation}
+\begin{small}
 
+\ARROW If one has many points one needs to use a high order polynomial.\\
+\ARROW The problem with high order polynomials is that they start oscilationg at the edges $\mapsto$ so-called Runge oscillations.
 
+\begin{center}
+\includegraphics[width=0.75\textwidth]{images/Runge.png}
+\end{center}
 
+\ARROW Danny will tell you more about this next lecture.
+
+\end{small}
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \begin{frame}\frametitle{First degree spline function}
 \begin{small}