1 files changed, 51 insertions, 38 deletions
diff --git a/day1/session2.tex b/day1/session2.tex
index 13efd55..2e493e4 100644
--- a/day1/session2.tex
+++ b/day1/session2.tex
@@ -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[] {12 February, 2010\\Day 1, Session 2}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %\pgfdeclareimage[height=0.75cm]{iitmlogo}{iitmlogo}
@@ -179,10 +179,10 @@ Out[]: <matplotlib.text.Text object at 0x98746ec>
 \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 @@ Out[]: <matplotlib.text.Text object at 0x98746ec>
 \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]
 
@@ -208,43 +208,45 @@ In []: mtlist = []
 \end{lstlisting}
 \emphbar{Empty List}
 \begin{lstlisting}
-In []: a = [ 5, 2, 3, 1, 4] 
+In []: p = [ 2, 3, 5, 7] 
 
-In []: a[0]+a[1]+a[-1]
-Out[]: 11
+In []: p[0]+p[1]+p[-1]
+Out[]: 12
 \end{lstlisting}
 \end{frame}
 
 \begin{frame}[fragile]
   \frametitle{List: Slicing}
   \begin{block}{Remember\ldots}
-	\kwrd{In []: a = [ 5, 2, 3, 1, 4]}
+	\kwrd{In []: p = [ 2, 3, 5, 7]}
   \end{block}
 \begin{lstlisting}
-In []: a[1:3]
-Out[]: [2, 3]
+In []: p[1:3]
+Out[]: [3, 5]
 \end{lstlisting}
 \emphbar{A slice}
 \begin{lstlisting}
-In []: a[1:-1]
-Out[]: [2, 3, 1]
+In []: p[0:-1]
+Out[]: [2, 3, 5]
+In []: p[::2]
+Out[]: [2, 5]
 \end{lstlisting}
-\alert{\typ{list[initial:final]}}
+\alert{\typ{list[initial:final:step]}}
 \end{frame}
 
 %% more on list slicing
 \begin{frame}[fragile]
 \frametitle{List operations}
 \begin{lstlisting}
-In []: b = [ 8, 6, 9, 9]
-In []: c = a + b
+In []: b = [ 11, 13, 17]
+In []: c = p + b
 
 In []: c
-Out[]: [5, 2, 3, 1, 4, 8, 6, 9, 9]
+Out[]: [2, 3, 5, 7, 11, 13, 17]
 
-In []: a.append(6)
-In []: a
-Out[]: [5, 2, 3, 1, 4, 6]
+In []: p.append(11)
+In []: p
+Out[]: [ 2, 3, 5, 7, 11]
 \end{lstlisting}
 %\inctime{10}
 \end{frame}
@@ -299,27 +301,40 @@ In []: t = [0.69, 0.90, 1.19,
 \begin{lstlisting}
 In []: tsq = []
 
+In []: len(l)
+Out[]: 9
+
+In []: len(t)
+Out[]: 9
+
 In []: for time in t:
  ....:     tsq.append(time*time)
  ....:
  ....:
-\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.
-\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. 
+This gives \kwrd{tsq} which is the list of squares of \typ{t} values.
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{How to come out of the \texttt{for} loop?}
+  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, len(tsq)
+    In []: plot(l, 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 +368,7 @@ $ cat pendulum.txt
 
 \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 +380,14 @@ tsq = []
 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 +466,6 @@ tsq = []
 for time in t:
     tsq.append(time*time)
 plot(l, tsq, '.')
-show()
 \end{lstlisting}
 \end{frame}