--- a/accessing-pieces-arrays/slides.tex	Tue Oct 26 11:01:31 2010 +0530
+++ b/accessing-pieces-arrays/slides.tex	Tue Oct 26 13:06:20 2010 +0530
@@ -1,4 +1,4 @@
-% Created 2010-10-10 Sun 18:48
+% Created 2010-10-26 Tue 12:11
 \documentclass[presentation]{beamer}
 \usepackage[latin1]{inputenc}
 \usepackage[T1]{fontenc}
@@ -8,6 +8,7 @@
 \usepackage{float}
 \usepackage{wrapfig}
 \usepackage{soul}
+\usepackage{t1enc}
 \usepackage{textcomp}
 \usepackage{marvosym}
 \usepackage{wasysym}
@@ -56,8 +57,7 @@
 \frametitle{Sample Arrays}
 \label{sec-2}
 
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 In []: A = array([12, 23, 34, 45, 56])
 
 In []: C = array([[11, 12, 13, 14, 15],
@@ -65,7 +65,7 @@
                   [31, 32, 33, 34, 35],
                   [41, 42, 43, 44, 45],
                   [51, 52, 53, 54, 55]])
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}
 \frametitle{Question 1}
@@ -77,10 +77,9 @@
 \frametitle{Solution 1}
 \label{sec-4}
 
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 In []:  C[:, -1] = 0
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}
 \frametitle{Question 2}
@@ -92,10 +91,9 @@
 \frametitle{Solution 2}
 \label{sec-6}
 
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 In []:  A[:] = [11, 12, 13, 14, 15]
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}
 \frametitle{squares.png}
@@ -119,12 +117,11 @@
 \frametitle{Solution 3}
 \label{sec-9}
 
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 In []:  C[1, 1:3]
 In []:  C[0:4, 0]
 In []:  C[1:5, 0]
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}
 \frametitle{Question 4}
@@ -136,10 +133,9 @@
 \frametitle{Solution 4}
 \label{sec-11}
 
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 In []:  C[1:3, 2:4]
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}
 \frametitle{Question 5}
@@ -151,31 +147,28 @@
 \frametitle{Solution 5}
 \label{sec-13}
 
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 In []: imshow(I[75:225, 75:225])
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}[fragile]
 \frametitle{Question 6}
 \label{sec-14}
 
   Obtain the following
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 [[12, 0], [42, 0]]
 [[12, 13, 14], [0, 0, 0]]
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}[fragile]
 \frametitle{Solution 6}
 \label{sec-15}
 
-\lstset{language=Python}
-\begin{lstlisting}
+\begin{verbatim}
 In []: C[::3, 1::3]
 In []: C[::4, 1:4]
-\end{lstlisting}
+\end{verbatim}
 \end{frame}
 \begin{frame}
 \frametitle{Summary}