From 82279af4f399e94f5c0e616db3055a27e88024c1 Mon Sep 17 00:00:00 2001
From: Carsten Knoll <carsten.knoll@posteo.de>
Date: Sun, 14 Oct 2018 19:56:29 +0200
Subject: [PATCH] Fix some strange problems in {lstlisting}-envs

---
 lectures/lecture-06-TiKZ.tex | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lectures/lecture-06-TiKZ.tex b/lectures/lecture-06-TiKZ.tex
index 1541224..c59b75a 100644
--- a/lectures/lecture-06-TiKZ.tex
+++ b/lectures/lecture-06-TiKZ.tex
@@ -920,7 +920,7 @@ Kann zum Beispiel in \texttt{figure} Umgebung eingebettet werden.
 \begin{scope}[$\dots$]
   $\dots\quad(\textsf{Wie vorher})$
   \draw (i-12) -- (i-12 |- O)
-    node[label = {below:\$x_0 + \varepsilon\$}] {};
+   node[label = {below:$\text{\${}x\_0 + \textbackslash{}varepsilon\$}$}] {};
 \end{scope}
 \end{lstlisting}
 
@@ -957,9 +957,9 @@ Kann zum Beispiel in \texttt{figure} Umgebung eingebettet werden.
 \begin{scope}[$\dots$]
   $\dots\quad(\textsl{Wie vorher})$
   \draw[blue, <->] (i-2) --
-    node[right] {\$f(x_0 + \varepsilon) - f(x_0)\$} (i-12);
+    node[right] {$\text{\${}f(x\_0 + \textbackslash{}varepsilon  - f(x\_0) )\$}$} (i-12);
   \draw[blue, <->] (i-1) --
-    node[below] {\$\varepsilon\$} (i-12);
+    node[below] {$\text{\${}\textbackslash{}varepsilon\$}$} (i-12);
 \end{scope}
 \end{lstlisting}
 
@@ -1000,10 +1000,10 @@ Kann zum Beispiel in \texttt{figure} Umgebung eingebettet werden.
 \begin{scope}[$\dots$]
   $\dots\quad (\textsl{Wie vorher})$
   \path (i-1 |- O) --
-    node[below] {\$\varepsilon\$} (i-2 |- O);
+    node[below] {$\text{\$\textbackslash{}varepsilon\$}$} (i-2 |- O);
   \draw[gray] (i-2) -- (i-2 -| xmax);
   \draw[gray, <->] ([xshift = -0.5cm]i-2 -| xmax) --
-    node[fill = white] {\$f(x_0 + \varepsilon)\$}
+    node[fill = white] {$\text{\${}f(x\_0) + \textbackslash{}varepsilon\$}$}
     ([xshift = -0.5cm]xmax);
 \end{scope}
 \end{lstlisting}