diff --git a/programming/lectures/vectors_matrices.tex b/programming/lectures/vectors_matrices.tex
index 36cbffc..bbaf48e 100644
--- a/programming/lectures/vectors_matrices.tex
+++ b/programming/lectures/vectors_matrices.tex
@@ -458,12 +458,10 @@
 \end{lstlisting}
 \end{frame}
 
-
 \begin{frame}[plain]
 \huge{Interludium: Matrixmultiplikation}
 \end{frame}
 
-
 \begin{frame}[fragile]
   \frametitle{Matrizen}
   \framesubtitle{\"Ubungen}
@@ -488,7 +486,6 @@
   \end{enumerate}
 \end{frame}
 
-
 \begin{frame}[fragile]
   \frametitle{Matrizen}
   \framesubtitle{\"Ubungen}