--- a/day1/session2.tex	Mon Jan 25 12:06:18 2010 +0530
+++ b/day1/session2.tex	Thu Feb 04 19:36:17 2010 +0530
@@ -78,7 +78,7 @@
 \author[FOSSEE] {FOSSEE}
 
 \institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
-\date[] {11 January, 2010\\Day 1, Session 2}
+\date[] {28 January, 2010\\Day 1, Session 2}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %\pgfdeclareimage[height=0.75cm]{iitmlogo}{iitmlogo}
@@ -179,10 +179,10 @@
 \begin{frame}[fragile]
 \frametitle{Additional Plotting Attributes}
 \begin{itemize}
-  \item \typ{'o'} - Filled circles
-  \item \typ{'.'} - Small Dots
-  \item \typ{'-'} - Lines
-  \item \typ{'--'} - Dashed lines
+  \item \kwrd{'o'} - Filled circles
+  \item \kwrd{'.'} - Small Dots
+  \item \kwrd{'-'} - Lines
+  \item \kwrd{'- -'} - Dashed lines
 \end{itemize}
 \end{frame}
 
@@ -190,7 +190,7 @@
 \begin{frame}[fragile]
   \frametitle{Lists: Introduction}
   \begin{lstlisting}
-    In []: x = [4, 2, 1, 3]
+    In []: x = [0, 1, 2, 3]
 
     In []: y = [7, 11, 15, 19]
 
@@ -208,17 +208,17 @@
 \end{lstlisting}
 \emphbar{Empty List}
 \begin{lstlisting}
-In []: a = [ 5, 2, 3, 1, 4] 
+In []: a = [ 1, 2, 3, 4, 5] 
 
 In []: a[0]+a[1]+a[-1]
-Out[]: 11
+Out[]: 8
 \end{lstlisting}
 \end{frame}
 
 \begin{frame}[fragile]
   \frametitle{List: Slicing}
   \begin{block}{Remember\ldots}
-	\kwrd{In []: a = [ 5, 2, 3, 1, 4]}
+	\kwrd{In []: a = [ 1, 2, 3, 4, 5]}
   \end{block}
 \begin{lstlisting}
 In []: a[1:3]
@@ -227,7 +227,7 @@
 \emphbar{A slice}
 \begin{lstlisting}
 In []: a[1:-1]
-Out[]: [2, 3, 1]
+Out[]: [2, 3, 4]
 \end{lstlisting}
 \alert{\typ{list[initial:final]}}
 \end{frame}
@@ -236,15 +236,15 @@
 \begin{frame}[fragile]
 \frametitle{List operations}
 \begin{lstlisting}
-In []: b = [ 8, 6, 9, 9]
+In []: b = [ 6, 7, 8, 9]
 In []: c = a + b
 
 In []: c
-Out[]: [5, 2, 3, 1, 4, 8, 6, 9, 9]
+Out[]: [1, 2, 3, 4, 5, 6, 7, 8, 9]
 
 In []: a.append(6)
 In []: a
-Out[]: [5, 2, 3, 1, 4, 6]
+Out[]: [ 1, 2, 3, 4, 5, 6]
 \end{lstlisting}
 %\inctime{10}
 \end{frame}
@@ -303,23 +303,29 @@
  ....:     tsq.append(time*time)
  ....:
  ....:
+
+In []: plot(l, tsq)
+Out[]: [<matplotlib.lines.Line2D object at 0xa5b05ac>]
 \end{lstlisting}
-Hit the ``ENTER'' key twice to come to the previous indentation level
-\begin{lstlisting}
-In []: print tsq
-\end{lstlisting}
-\kwrd{tsq} is the list of squares of \typ{t} values.
+This gives \kwrd{tsq} which is the list of squares of \typ{t} values.
 \end{frame}
 
 \begin{frame}[fragile]
-\frametitle{Plotting $L$ vs $T^2$ \ldots}
-\begin{lstlisting}
-In []: plot(l, tsq)
-Out[]: [<matplotlib.lines.Line2D object at 0xa5b05ac>]
-\end{lstlisting}
-This gives the required plot. 
+  \frametitle{How to come out of the \texttt{for} loop?}
+  Recall that hitting the ``ENTER'' key twice returns the cursor to the previous indentation level
+  \begin{lstlisting}
+    In []: for time in t:
+     ....:     tsq.append(time*time)
+     ....:     
+     ....:     
+
+    In []: print tsq
+  \end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
 \begin{figure}
-\includegraphics[width=2.2in]{data/L-TSq-limited.png}
+\includegraphics[width=3.5in]{data/L-TSq-limited.png}
 \end{figure}
 \end{frame}
 
@@ -353,7 +359,7 @@
 
 \begin{frame}[fragile]
 \frametitle{Plotting from \typ{pendulum.txt}}
-Type the following in an editor. Save as \typ{pend\_pl.py}
+Open a new script and type the following:
 \begin{lstlisting}
 l = []
 t = []
@@ -365,15 +371,14 @@
 for time in t:
     tsq.append(time*time)
 plot(l, tsq, '.')
-show()
 \end{lstlisting}
 \end{frame}
 
 \begin{frame}
 \frametitle{Save and run}
 \begin{itemize}
-  \item Save as \typ{pend\_pl.py}
-  \item Run using \kwrd{\%run -i pend\_pl.py}
+  \item Save as pendulum\_plot.py.
+  \item Run using \kwrd{\%run -i pendulum\_plot.py}
 \end{itemize}
 \end{frame}
 
@@ -452,7 +457,6 @@
 for time in t:
     tsq.append(time*time)
 plot(l, tsq, '.')
-show()
 \end{lstlisting}
 \end{frame}