Initial files for scipy india 2016 tutorial.

These are all from older material delivered at various places.  The
material is from the PyConAPAC tutorial slides.

1 files changed, 904 insertions, 0 deletions

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+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%Tutorial slides on Python.
+%
+% Author: FOSSEE
+% Copyright (c) 2009-2016, FOSSEE, IIT Bombay
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\documentclass[14pt,compress]{beamer}
+
+% Modified from: generic-ornate-15min-45min.de.tex
+\mode<presentation>
+{
+  \usetheme{Warsaw}
+  \useoutertheme{infolines}
+  \setbeamercovered{transparent}
+}
+
+\usepackage[english]{babel}
+\usepackage[latin1]{inputenc}
+%\usepackage{times}
+\usepackage[T1]{fontenc}
+
+% Taken from Fernando's slides.
+\usepackage{ae,aecompl}
+\usepackage{mathpazo,courier,euler}
+\usepackage[scaled=.95]{helvet}
+
+\definecolor{darkgreen}{rgb}{0,0.5,0}
+
+\usepackage{listings}
+\lstset{language=Python,
+    basicstyle=\ttfamily\bfseries,
+    commentstyle=\color{red}\itshape,
+  stringstyle=\color{darkgreen},
+  showstringspaces=false,
+  keywordstyle=\color{blue}\bfseries}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Macros
+\setbeamercolor{emphbar}{bg=blue!20, fg=black}
+\newcommand{\emphbar}[1]
+{\begin{beamercolorbox}[rounded=true]{emphbar}
+      {#1}
+ \end{beamercolorbox}
+}
+\newcounter{time}
+\setcounter{time}{0}
+\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}}
+
+\newcommand{\typ}[1]{\lstinline{#1}}
+
+\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}}  }
+
+%%% This is from Fernando's setup.
+% \usepackage{color}
+% \definecolor{orange}{cmyk}{0,0.4,0.8,0.2}
+% % Use and configure listings package for nicely formatted code
+% \usepackage{listings}
+% \lstset{
+%    language=Python,
+%    basicstyle=\small\ttfamily,
+%    commentstyle=\ttfamily\color{blue},
+%    stringstyle=\ttfamily\color{orange},
+%    showstringspaces=false,
+%    breaklines=true,
+%    postbreak = \space\dots
+% }
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Title page
+\title[Interactive Plotting]{Introductory Scientific Computing with
+Python}
+\subtitle{Introduction, IPython and Plotting}
+
+\author[FOSSEE] {FOSSEE}
+
+\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
+\date[] {SciPy India 2016,\\
+Mumbai
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%\pgfdeclareimage[height=0.75cm]{iitmlogo}{iitmlogo}
+%\logo{\pgfuseimage{iitmlogo}}
+
+
+%% Delete this, if you do not want the table of contents to pop up at
+%% the beginning of each subsection:
+\AtBeginSubsection[]
+{
+  \begin{frame}<beamer>
+    \frametitle{Outline}
+    \tableofcontents[currentsection,currentsubsection]
+  \end{frame}
+}
+
+\AtBeginSection[]
+{
+  \begin{frame}<beamer>
+    \frametitle{Outline}
+    \tableofcontents[currentsection,currentsubsection]
+  \end{frame}
+}
+
+% If you wish to uncover everything in a step-wise fashion, uncomment
+% the following command:
+%\beamerdefaultoverlayspecification{<+->}
+
+%%\includeonlyframes{current,current1,current2,current3,current4,current5,current6}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% DOCUMENT STARTS
+\begin{document}
+
+\begin{frame}
+  \maketitle
+\end{frame}
+
+%% \begin{frame}
+%%   \frametitle{Outline}
+%%   \tableofcontents
+%%   % You might wish to add the option [pausesections]
+%% \end{frame}
+
+\begin{frame}
+    \frametitle{Acknowledgement}
+    \Large
+    \begin{center}
+        \alert{FOSSEE group (\url{fossee.in})} \\
+        based at\\
+        \alert{IIT Bombay}\\
+        and funded by\\
+        The National Mission on Education through ICT, \\
+        \alert{Ministry of HRD, India}
+    \end{center}
+\end{frame}
+
+\section{Checklist}
+\begin{frame}
+\frametitle{Checklist}
+  \begin{enumerate}
+    \item Editor - we recommend \alert{Canopy}
+    \item IPython
+    \item Data files:
+      \begin{itemize}
+      \item \typ{pendulum.txt}
+      \item \typ{data.csv}
+      \end{itemize}
+    \item Images
+      \begin{itemize}
+      \item \typ{lena.png}
+      \end{itemize}
+  \end{enumerate}
+\end{frame}
+
+\begin{frame}
+  \frametitle{About the Tutorial}
+  \begin{block}{Intended Audience}
+  \begin{itemize}
+       \item Engg., Mathematics and Science researchers with a
+           reasonable programming background.
+  \end{itemize}
+  \end{block}
+
+  \begin{block}{Goal: Successful participants will be able to}
+    \begin{itemize}
+      \item Start using Python as plotting, computational tool.
+      \item Use the basic libraries and tools for scientific computing
+          with Python.
+    \end{itemize}
+  \end{block}
+\end{frame}
+
+%% \begin{frame}[fragile]
+%% \frametitle{The Python interpreter \ldots}
+%% \begin{block}{}
+%% \begin{lstlisting}
+%%   $ python
+%% \end{lstlisting} %$
+%% \end{block}
+%% \begin{lstlisting}
+%%   >>> print "Hello, World!"
+%%   Hello, World!
+%% \end{lstlisting}
+%% Exiting
+%% \begin{lstlisting}
+%%   >>> ^D(Ctrl-D)
+%%   $
+%% \end{lstlisting} %$
+%% \end{frame}
+
+\section{Starting up IPython}
+\begin{frame}[fragile]
+\frametitle{Starting up \ldots}
+\begin{block}{Enthought Canopy menu}
+\begin{itemize}
+    \item Canopy command prompt (Tools menu)
+    \item PyLab
+\end{itemize}
+\end{block}
+
+\begin{block}{Terminal}
+\begin{lstlisting}
+  $ ipython --pylab
+\end{lstlisting} %$
+\end{block}
+\end{frame}
+
+% \section{Starting up IPython}
+% \begin{frame}[fragile]
+% \frametitle{Starting up \ldots}
+% \begin{block}{Terminal Jupyter}
+% \begin{lstlisting}
+%   $ jupyter console
+
+%   In [1]: %pylab
+% \end{lstlisting} %$
+% \end{block}
+% \end{frame}
+
+
+\begin{frame}[fragile]
+\frametitle{Running IPython}
+\begin{lstlisting}
+  In []: print("Hello, World!")
+  Hello, World!
+\end{lstlisting}
+
+Exiting on the \textbf{terminal}
+\begin{lstlisting}
+  In []: ^D(Ctrl-D)
+  Do you really want to exit([y]/n)? y
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Pressed Ctrl-D on Canopy? }
+  \begin{itemize}
+  \item Pressed \verb+Ctrl-D+ inside Canopy?
+  \item You suddenly lost the Python prompt?
+  \item Go to \verb+View->Python+
+  \end{itemize}
+\end{frame}
+
+
+\section{Breaking out of loops}
+\begin{frame}[fragile]
+\frametitle{Breaking out of Loops}
+Breaking out of loops
+\begin{lstlisting}
+  In []: while True:
+    ...:     print("Hello, World!")
+    ...:
+  Hello, World!
+  Hello, World!^C(Ctrl-C)
+  ------------------------------------
+  KeyboardInterrupt
+\end{lstlisting}
+  \inctime{10}
+\end{frame}
+
+\section{Plotting}
+\subsection{Drawing plots}
+\begin{frame}[fragile]
+\frametitle{First Plot}
+\begin{columns}
+    \column{0.25\textwidth}
+    \hspace*{-0.25in}
+  \includegraphics[height=2in, interpolate=true]{data/firstplot}
+    \column{0.8\textwidth}
+    \begin{block}{}
+    \begin{small}
+\begin{lstlisting}
+In []: x = linspace(0, 2*pi, 50)
+In []: plot(x, sin(x))
+\end{lstlisting}
+    \end{small}
+    \end{block}
+\end{columns}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Walkthrough}
+\begin{block}{\typ{x = linspace(start, stop, num)} }
+returns \typ{num} evenly spaced points, in the interval [\typ{start}, \typ{stop}].
+\end{block}
+\vspace*{.35in}
+\begin{block}{}
+  \small
+\begin{lstlisting}
+In []: x[0]
+Out[]: 0.0
+
+In []: x[49]
+Out[]: 6.2831853071795862
+\end{lstlisting}
+\end{block}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Walkthrough \ldots}
+\begin{block}{\typ{plot(x, y)}}
+plots \typ{x} and \typ{y} using default line style and color
+\end{block}
+\inctime{5}
+\end{frame}
+
+\begin{frame}
+  \frametitle{Important instructions}
+  \begin{itemize}
+  \item Please do not close the plot windows or IPython
+  \item For the first session, please do not experiment
+  \item Follow along and type everything!
+  \item Case matters
+  \item Every character you type matters!
+  \end{itemize}
+\end{frame}
+
+\subsection{Decoration}
+\begin{frame}[fragile]
+\frametitle{Adding Labels}
+\begin{columns}
+  \column{0.25\textwidth}
+  \hspace*{-0.45in}
+  \includegraphics[height=2in, interpolate=true]{data/label}
+  \hspace*{0.5in}
+  \column{0.55\textwidth}
+  \begin{block}{}
+  \small
+  \begin{lstlisting}
+In []: xlabel('x')
+
+In []: ylabel('sin(x)')
+  \end{lstlisting}
+  \small
+%  \end{lstlisting}
+%\typ{xlabel(s)} sets the label of the \typ{x}-axis to \typ{s}
+
+%  \begin{lstlisting}
+  \end{block}
+%\typ{ylabel(s)} sets the label of the \typ{y}-axis to \typ{s}
+\end{columns}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Another example}
+  \begin{lstlisting}
+In []: clf()
+  \end{lstlisting}
+\emphbar{Clears the plot area.}
+  \begin{lstlisting}
+In []: y = linspace(0, 2*pi, 50)
+In []: plot(y, sin(2*y))
+In []: xlabel('y')
+In []: ylabel('sin(2y)')
+  \end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{IPython tips}
+
+\begin{itemize}
+\item Use \typ{TAB} to complete command
+\item Try:
+\begin{lstlisting}
+In []: pl<TAB>
+\end{lstlisting}
+\end{itemize}
+\vspace*{0.5in}
+
+{\Large \structure{History}}
+\begin{itemize}
+\item Up arrow and down arrow
+
+\item Left / right to move and edit
+
+\item Type some text and press up arrow:
+\begin{lstlisting}
+In []: pl<Up Arrow>
+\end{lstlisting}
+
+\end{itemize}
+
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Advanced IPython tips \ldots}
+  \begin{itemize}
+\item Search: \typ{Ctrl-r} and start typing
+
+\item \typ{Ctrl-a}: go to start of line
+
+\item \typ{Ctrl-e}: go to end of line
+
+\item \typ{Ctrl-k}: kill to end of line
+  \end{itemize}
+\end{frame}
+
+
+\subsection{More decoration}
+\begin{frame}[fragile]
+\frametitle{Title and Legends}
+\vspace*{-0.15in}
+%  \begin{block}{}
+%  \small
+\begin{lstlisting}
+In []: title('Sinusoids')
+In []: legend(['sin(2y)'])
+\end{lstlisting}
+%  \small
+%  \end{block}
+  \vspace*{-0.1in}
+  \begin{center}
+  \includegraphics[height=2in, interpolate=true]{data/legend}
+  \end{center}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Legend Placement}
+\begin{block}{}
+    \small
+\begin{lstlisting}
+In []: legend(['sin(2y)'], loc='center')
+\end{lstlisting}
+\end{block}
+
+\begin{columns}
+    \column{0.6\textwidth}
+ \includegraphics[height=2in, interpolate=true]{data/position}
+\column{0.45\textwidth}
+\vspace{-0.2in}
+\begin{lstlisting}
+'best'
+'right'
+'left'
+'center'
+\end{lstlisting}
+\end{columns}
+\inctime{15}
+\end{frame}
+
+\begin{frame}
+  \frametitle{Important instructions}
+  \begin{itemize}
+  \item Please do not close the plot windows or IPython
+  \item For the first session, please do not experiment
+  \item Follow along and type everything!
+  \item Case matters
+  \item Every character you type matters!
+  \end{itemize}
+\end{frame}
+
+%% \begin{frame}[fragile]
+%%   \frametitle{For arbitrary location}
+%% \vspace*{-0.1in}
+%% \begin{lstlisting}
+%% In []: legend(['sin(2y)'], loc=(.8,.1))
+%% \end{lstlisting}
+%% \emphbar{Specify south-east corner position}
+%% %\vspace*{-0.2in}
+%% \begin{center}
+%%   \includegraphics[height=2in, interpolate=true]{data/loc}
+%% \end{center}
+%% %\inctime{10}
+%% \end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Showing it better}
+\vspace{-0.15in}
+\begin{lstlisting}
+In []: plot(y, cos(y), 'r')
+# See a red plot!
+
+In []: clf()
+In []: plot(y, sin(y), 'g', linewidth=2)
+\end{lstlisting}
+\vspace*{-0.2in}
+\begin{center}
+  \includegraphics[height=2.2in, interpolate=true]{data/green}
+\end{center}
+%\inctime{10}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Annotating}
+\vspace*{-0.1in}
+\begin{lstlisting}
+In[]: annotate('local max', xy=(1.5, 1))
+\end{lstlisting}
+\vspace*{-0.2in}
+\begin{center}
+  \includegraphics[height=3in, interpolate=true]{data/annotate}
+\end{center}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Saving \& Closing}
+\begin{lstlisting}
+In []: savefig('sin.png')
+
+In []: close()
+\end{lstlisting}
+Some supported formats:
+\begin{itemize}
+\item png
+\item pdf
+\item svg
+\end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Recap}
+  \begin{itemize}
+  \item \typ{linspace(start, end, num)}
+  \item \typ{plot(x, y)}
+  \item \typ{clf()}
+  \item \typ{xlabel, ylabel}
+  \item \typ{title, legend, annotate}
+  \item \typ{savefig}
+  \item \typ{close}
+  \end{itemize}
+  \inctime{10}
+\end{frame}
+
+\section{Multiple plots}
+\begin{frame}[fragile]
+  \frametitle{Overlaid Plots}
+\begin{lstlisting}
+In []: y = linspace(0, 2*pi, 50)
+\end{lstlisting}
+
+\begin{lstlisting}
+In []: clf()
+In []: plot(y, sin(y))
+In []: plot(y, cos(y))
+In []: xlabel('y')
+In []: ylabel('f(y)')
+In []: legend(['sin(y)', 'cos(y)'])
+# Note how we made two legends
+\end{lstlisting}
+
+
+\emphbar{By default plots would be overlaid!}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Plotting separate figures}
+\begin{lstlisting}
+In []: clf()
+In []: figure(1)
+In []: plot(y, sin(y))
+In []: figure(2)
+In []: plot(y, cos(y))
+In []: savefig('cosine.png')
+In []: figure(1)
+In []: title('sin(y)')
+In []: savefig('sine.png')
+In []: close()
+In []: close()
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Get Axes lengths}
+\emphbar{Getting axes lengths}
+  \begin{lstlisting}
+In []: xmin, xmax = xlim()
+In []: ymin, ymax = ylim()
+In []: print(xmin, xmax)
+\end{lstlisting}
+\pause
+\emphbar{Set the axes limits}
+  \begin{lstlisting}
+In []: xlim(xmin, 2*pi )
+In []: ylim(ymin-0.2, ymax+0.2)
+  \end{lstlisting}
+\end{frame}
+
+\begin{frame}[plain,fragile]
+  \frametitle{Axes lengths}
+  \vspace*{-0.2in}
+  \begin{center}
+    \includegraphics[height=3.25in, interpolate=true]{data/limits}
+  \end{center}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{IPython tip: documentation}
+
+\begin{itemize}
+
+    \item Try:
+\begin{lstlisting}
+In []: plot?
+\end{lstlisting}
+      \vspace*{0.2in}
+        to get more information on \typ{plot}
+
+      \item Use arrow keys to scroll docs
+      \item Note: exit help pager with ``q'' or ``ESC''
+\end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{IPython tip: source}
+\begin{itemize}
+    \item Try:
+\begin{lstlisting}
+In []: plot??
+\end{lstlisting}
+    to see the source code for \typ{plot}
+
+\end{itemize}
+\inctime{10}
+\end{frame}
+
+
+\begin{frame}[plain,fragile]
+\frametitle{Review Problem}
+\begin{enumerate}
+\item Plot $x, -x, \sin(x), x \sin(x)$ in range $-5\pi$ to $5\pi$
+\item Add a legend
+\item Annotate the origin
+\item Set axes limits to the range of x
+\end{enumerate}
+\vspace*{-0.15in}
+\begin{center}
+  \includegraphics[height=2.6in, interpolate=true]{data/four_plot}
+\end{center}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Review Problem \ldots}
+\alert{Plotting \ldots}
+\begin{lstlisting}
+In []: x = linspace(-5*pi, 5*pi, 500)
+In []: plot(x, x, 'b')
+In []: plot(x, -x, 'b')
+In []: plot(x, sin(x), 'g', linewidth=2)
+In []: plot(x, x*sin(x), 'r',
+            linewidth=3)
+\end{lstlisting}
+$\vdots$
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Review Problem \ldots}
+\alert{Legend \& Annotation\ldots}
+\begin{lstlisting}
+In []: legend(['x', '-x', 'sin(x)',
+               'xsin(x)'])
+In []: annotate('origin', xy = (0, 0))
+\end{lstlisting}
+\alert{Setting Axes limits\ldots}
+\begin{lstlisting}
+In []: xlim(-5*pi, 5*pi)
+In []: ylim(-5*pi, 5*pi)
+\end{lstlisting}
+\inctime{5}
+\end{frame}
+
+\section{Scripts -- Saving \& Running}
+\begin{frame}[fragile]
+\frametitle{Command History}
+Use the \typ{\%hist} \alert{magic} command of IPython
+\typ{In []: \%hist}\\
+This displays the ``Command History''
+\begin{block}{Careful about errors!}
+  \kwrd{\%hist} will contain the errors as well.\\
+\end{block}
+\pause
+\begin{block}{Magic Commands?}
+  Magic commands are commands provided by IPython to make our life easier.
+\end{block}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Saving commands into a script}
+  \begin{itemize}
+  \item Create a new file on Canopy
+  \item Copy commands for assignment with your mouse
+  \item Save the script to \typ{four_plot.py}
+  \end{itemize}
+\inctime{5}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Python Scripts\ldots}
+Now, \typ{four_plot.py} is called a Python Script.
+ \begin{itemize}
+ \item run the script in IPython using \typ{\%run four_plot.py}\\
+ \end{itemize}
+\pause
+\alert{\typ{NameError: name 'linspace' is not defined}}
+\begin{block}{}
+To avoid this, run using \alert{\typ{\%run -i four_plot.py}}\\
+\end{block}
+\pause
+Where is the plot?
+\begin{lstlisting}
+In []: show()
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Exercise}
+  \begin{itemize}
+  \item Add the \typ{show()} command to \typ{four_plot.py}
+  \item Test that it works
+  \end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Result graph}
+  \begin{center}
+    \includegraphics[height=3in, interpolate=true]{data/four_plot}
+  \end{center}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Running with Python}
+  \begin{itemize}
+  \item Start a new Canopy terminal
+  \item Run the script as:
+  \end{itemize}
+\begin{lstlisting}
+ $ python four_plot.py
+\end{lstlisting}
+  \pause
+  Do you see:
+  \begin{small}
+\begin{lstlisting}
+NameError: name 'linspace' is not defined
+\end{lstlisting}
+  \end{small}
+\inctime{5}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Imports}
+  \begin{itemize}
+  \item \typ{ipython --pylab} does magic
+  \item Import libraries using \typ{import}
+  \end{itemize}
+\begin{lstlisting}
+In []: from pylab import linspace
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Exercise}
+  \begin{itemize}
+  \item Add \typ{from pylab import linspace} to top of \typ{four_plot.py}
+  \item Test that it works
+  \end{itemize}
+\begin{lstlisting}
+# four_plot.py
+from pylab import linspace # <---
+x = linspace(-5*pi, 5*pi, 500)
+plot(x, x, 'b')
+...
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Try again}
+  \begin{itemize}
+  \item On Canopy terminal
+  \item Run the script as:
+  \end{itemize}
+\begin{lstlisting}
+ $ python four_plot.py
+\end{lstlisting}
+  \pause
+  \vspace*{0.15in}
+  Do you see:
+  \begin{small}
+\begin{lstlisting}
+NameError: name 'plot' is not defined
+\end{lstlisting}
+  \end{small}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Exercise}
+  \begin{itemize}
+  \item Change line 1 to \typ{from pylab import *}
+  \item Test that it works
+  \end{itemize}
+\begin{lstlisting}
+# four_plot.py
+from pylab import * # <---
+x = linspace(-5*pi, 5*pi, 500)
+plot(x, x, 'b')
+...
+\end{lstlisting}
+\inctime{5}
+\end{frame}
+
+
+\begin{frame}[fragile]
+  \frametitle{What did we learn?}
+  \begin{itemize}
+    \item Starting up IPython
+    \item Creating simple plots
+    \item Adding labels and legends
+    \item Annotating plots
+    \item Changing the looks: size, linewidth
+    \item Accessing history, documentation
+    \item \kwrd{\%hist} - History of commands
+    \item Creating a Python script on Canopy
+    \item Running a script using \kwrd{\%run -i}
+    \item Importing functionality
+    \item Running a script with\ \typ{python script.py}
+  \end{itemize}
+\end{frame}
+
+\begin{frame}
+  \frametitle{Next: using Canopy}
+  \begin{itemize}
+  \item Much easier
+  \item Write code in the editor
+  \item Save (Ctrl-S or Cmd-S)
+  \item Run selection: Ctrl-Shift-R (Cmd-Shift-R on OS X)
+  \item Run code: Ctrl-R (Cmd-R on OS X)
+  \end{itemize}
+  \inctime{5}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Note on script file names}
+  \begin{itemize}
+  \item Should start with a letter
+  \item Can use \typ{_} (underscore) and numbers
+  \item No \typ{.} allowed
+  \item No spaces or special characters
+  \end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+  \frametitle{Test}
+  \begin{itemize}
+  \item \typ{1_script.py}
+  \item \typ{script_1.py}
+  \item \typ{one11.py}
+  \item \typ{one script.py}
+  \item \typ{one,script;xxx.py}
+  \item \typ{one.two.py}
+  \end{itemize}
+\end{frame}
+
+\end{document}
+
+%% Questions for Quiz %%
+%% ------------------ %%
+
+\begin{frame}[fragile]
+\frametitle{\incqno }
+Draw (roughly) the plot obtained by the following:
+\begin{lstlisting}
+In []: x = linspace(0, pi, 3)
+In []: plot(x, sin(x))
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{\incqno }
+Describe the plot produced by the following:
+\begin{lstlisting}
+In []: x = linspace(0, 2*pi, 50)
+In []: plot(x, cos(x), 'go')
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}
+\frametitle{\incqno }
+How will you plot the previous graph with line width set to 3?  How will
+you set the $x$ and $y$ labels of the plot?
+\end{frame}
+
+\begin{frame}
+\frametitle{\incqno }
+How will you set the x and y axis limits so that the region of interest
+is in the rectangle $(0, -1.5)$ (left bottom coordinate) and $(2\pi,
+1.5)$ (right top coordinate)?
+\end{frame}
+
+\begin{frame}
+\frametitle{\incqno }
+What ipython magic command do you use to obtain the lines of code you have already typed in the interpreter? What command do you use to save them?
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{\incqno }
+The following code snippet has an error/bug:
+\begin{lstlisting}
+In []: y = linspace(0, 2*pi, 50)
+In []: plot(y, sin(y))
+In []: clf()
+In []: plot(y, cos(y))
+In []: legend(['sin(y)', 'cos(y)'])
+\end{lstlisting}
+What is the error? How do you fix it?
+\end{frame}