--- a/handouts/ho02.tex Fri Sep 25 20:59:24 2015 +0100
+++ b/handouts/ho02.tex Mon Sep 28 23:47:34 2015 +0100
@@ -545,8 +545,9 @@
\lstinputlisting{../progs/app6.scala}
\caption{The simplification function and modified
\texttt{ders}-function; this function now
-calls \texttt{der} first, but then tries to simplify
-the resulting derivative regular expressions.\label{scala2}}
+calls \texttt{der} first, but then simplifies
+the resulting derivative regular expressions, see
+Line~28.\label{scala2}}
\end{figure}
\begin{center}