day1/session1.tex
author Nishanth Amuluru <nishanth@fossee.in>
Tue, 14 Dec 2010 23:15:36 +0530
branchscipyin2010
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%Tutorial slides on Python.
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%
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% Author: FOSSEE 
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% Copyright (c) 2009, FOSSEE, IIT Bombay
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\documentclass[14pt,compress]{beamer}
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%\documentclass[draft]{beamer}
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%\documentclass[compress,handout]{beamer}
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%\usepackage{pgfpages} 
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%\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm]
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% Modified from: generic-ornate-15min-45min.de.tex
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\mode<presentation>
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{
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  \usetheme{Warsaw}
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  \useoutertheme{infolines}
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  \setbeamercovered{transparent}
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}
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\usepackage[english]{babel}
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\usepackage[latin1]{inputenc}
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%\usepackage{times}
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\usepackage[T1]{fontenc}
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% Taken from Fernando's slides.
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\usepackage{ae,aecompl}
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\usepackage{mathpazo,courier,euler}
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\usepackage[scaled=.95]{helvet}
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\definecolor{darkgreen}{rgb}{0,0.5,0}
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\usepackage{listings}
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\lstset{language=Python,
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    basicstyle=\ttfamily\bfseries,
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    commentstyle=\color{red}\itshape,
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  stringstyle=\color{darkgreen},
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  showstringspaces=false,
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  keywordstyle=\color{blue}\bfseries}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Macros
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\setbeamercolor{emphbar}{bg=blue!20, fg=black}
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\newcommand{\emphbar}[1]
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{\begin{beamercolorbox}[rounded=true]{emphbar} 
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      {#1}
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 \end{beamercolorbox}
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}
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\newcounter{time}
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\setcounter{time}{0}
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\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}}
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\newcommand{\typ}[1]{\lstinline{#1}}
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\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}}  }
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%%% This is from Fernando's setup.
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% \usepackage{color}
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% \definecolor{orange}{cmyk}{0,0.4,0.8,0.2}
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% % Use and configure listings package for nicely formatted code
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% \usepackage{listings}
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% \lstset{
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%    language=Python,
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%    basicstyle=\small\ttfamily,
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%    commentstyle=\ttfamily\color{blue},
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%    stringstyle=\ttfamily\color{orange},
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%    showstringspaces=false,
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%    breaklines=true,
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%    postbreak = \space\dots
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% }
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Title page
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\title[Interactive Plotting]{Python for Science and Engg: Interactive Plotting}
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\author[FOSSEE group] {FOSSEE}
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\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
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\date[] {SciPy.in 2010, Tutorials}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%\pgfdeclareimage[height=0.75cm]{iitmlogo}{iitmlogo}
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%\logo{\pgfuseimage{iitmlogo}}
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%% Delete this, if you do not want the table of contents to pop up at
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%% the beginning of each subsection:
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\AtBeginSubsection[]
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{
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  \begin{frame}<beamer>
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    \frametitle{Outline}
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    \tableofcontents[currentsection,currentsubsection]
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  \end{frame}
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}
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\AtBeginSection[]
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{
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  \begin{frame}<beamer>
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    \frametitle{Outline}
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    \tableofcontents[currentsection,currentsubsection]
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  \end{frame}
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}
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% If you wish to uncover everything in a step-wise fashion, uncomment
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% the following command: 
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%\beamerdefaultoverlayspecification{<+->}
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%%\includeonlyframes{current,current1,current2,current3,current4,current5,current6}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% DOCUMENT STARTS
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\begin{document}
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\begin{frame}
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  \maketitle
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\end{frame}
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%% \begin{frame}
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%%   \frametitle{Outline}
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%%   \tableofcontents
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%%   % You might wish to add the option [pausesections]
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%% \end{frame}
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\section{Checklist}
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\begin{frame}
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\frametitle{Checklist}
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  \begin{enumerate}
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    \item IPython
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    \item Editor - we recommend \alert{scite}
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    \item Data files: 
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      \begin{itemize}
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      \item \typ{anag.txt}
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      \item \typ{holmes.txt}
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      \item \typ{pendulum.txt}
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      \item \typ{pos.txt}
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      \item \typ{sslc1.txt}
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      \item \typ{primes.txt}
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      \end{itemize}
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    \item Images
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      \begin{itemize}
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      \item \typ{lena.png}
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      \end{itemize}
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  \end{enumerate}
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\end{frame}
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\section{Starting up IPython}
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\begin{frame}[fragile]
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\frametitle{Starting up \ldots}
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\begin{block}{}
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\begin{lstlisting}
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  $ ipython -pylab
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\end{lstlisting} %$
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\end{block}
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\begin{lstlisting}     
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  In []: print "Hello, World!"
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  Hello, World!
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\end{lstlisting}
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Exiting
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\begin{lstlisting}
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  In []: ^D(Ctrl-D)
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  Do you really want to exit([y]/n)? y
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\end{lstlisting}
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\end{frame}
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\section{Plotting}
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\subsection{Drawing plots}
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\begin{frame}[fragile]
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\frametitle{First Plot}
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\begin{columns}
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    \column{0.25\textwidth}
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    \hspace*{-0.5in}
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  \includegraphics[height=2in, interpolate=true]{data/firstplot}
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    \column{0.8\textwidth}
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    \begin{block}{}
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    \begin{small}
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\begin{lstlisting}
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In []: x = linspace(0, 2*pi, 50)
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In []: plot(x, sin(x))
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\end{lstlisting}
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    \end{small}
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    \end{block}
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\end{columns}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Walkthrough}
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\begin{block}{\typ{x = linspace(start, stop, num)} }
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returns \typ{num} evenly spaced points, in the interval [\typ{start}, \typ{stop}].
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\end{block}
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\begin{lstlisting}
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x[0] = start
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x[num - 1] = end
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\end{lstlisting}
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\vspace*{.35in}
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\begin{block}{\typ{plot(x, y)}}
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plots \typ{x} and \typ{y} using default line style and color
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\end{block}
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%\inctime{10}
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\end{frame}
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\subsection{Decoration}
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\begin{frame}[fragile]
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\frametitle{Adding Labels}
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\begin{columns}
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  \column{0.25\textwidth}
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  \hspace*{-0.45in}
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  \includegraphics[height=2in, interpolate=true]{data/label}  
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  \hspace*{0.5in}
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  \column{0.55\textwidth}
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  \begin{block}{}
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  \small
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  \begin{lstlisting}
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In []: xlabel('x')
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In []: ylabel('sin(x)')
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  \end{lstlisting}
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  \small
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%  \end{lstlisting}
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%\typ{xlabel(s)} sets the label of the \typ{x}-axis to \typ{s}
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%  \begin{lstlisting}
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  \end{block}
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%\typ{ylabel(s)} sets the label of the \typ{y}-axis to \typ{s}
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\end{columns}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Another example}
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  \begin{lstlisting}
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In []: clf()
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  \end{lstlisting}
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\emphbar{Clears the plot area.}
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  \begin{lstlisting}
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In []: y = linspace(0, 2*pi, 50)
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In []: plot(y, sin(2*y))
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In []: xlabel('y')
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In []: ylabel('sin(2y)')
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  \end{lstlisting}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Title}
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\vspace*{-0.15in}
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%  \begin{block}{}
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%  \small
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\begin{lstlisting}
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In []: title('Sinusoids')
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\end{lstlisting}
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%  \small
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%  \end{block}
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  \vspace*{-0.1in}
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  \begin{center}
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  \includegraphics[height=2in, interpolate=true]{data/title}  
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  \end{center}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Saving \& Closing}
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\begin{lstlisting}
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In []: savefig('sin.png')
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In []: close()
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\end{lstlisting}
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Supported formats to store images:
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\begin{itemize}
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\item png
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\item eps - Easy to embed in LaTeX files
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\item emf
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\item pdf
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\item ps
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\item raw
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\item rgba
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\item svg
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\end{itemize}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{IPython tips \ldots}
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\begin{itemize}
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    \item Use \typ{TAB} to complete command 
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\end{itemize}
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        \vspace*{0.5in}
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        {\Large \structure{History}}
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\begin{itemize}
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    \item Accesses history (also from past sessions)
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    \item Up and down arrows (\typ{Ctrl-p}/\typ{Ctrl-n})
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\end{itemize}
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\end{frame}
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\section{Multiple plots}
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\begin{frame}[fragile]
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\frametitle{Overlaid Plots}
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\begin{lstlisting}
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In []: clf()
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In []: plot(y, sin(y))
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In []: plot(y, cos(y))
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In []: xlabel('y')
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In []: ylabel('f(y)')
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\end{lstlisting}
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\emphbar{By default plots would be overlaid!}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Legend}
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\vspace*{-0.15in}
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%  \begin{block}{}
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%  \small
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\begin{lstlisting}
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In []: legend(['sin(y)', 'cos(y)']) 
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\end{lstlisting}
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%  \small
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%  \end{block}
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  \vspace*{-0.1in}
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  \begin{center}
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  \includegraphics[height=2in, interpolate=true]{data/legend}  
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  \end{center}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Legend Placement}
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\begin{block}{}
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    \small
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\begin{lstlisting}
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In []: legend(['sin(y)', 'cos(y)'], loc='center')
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\end{lstlisting}
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\end{block}
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\begin{columns}
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    \column{0.6\textwidth}
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 \includegraphics[height=2in, interpolate=true]{data/position}  
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\column{0.45\textwidth}
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\vspace{-0.2in}
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\begin{lstlisting}
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'best' 
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'right'
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'center'
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\end{lstlisting}
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\end{columns}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Plotting separate figures}
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\begin{lstlisting}
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In []: clf()
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In []: figure(1)
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In []: plot(y, sin(y))
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In []: figure(2)
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In []: plot(y, cos(y))
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In []: savefig('cosine.png')
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In []: figure(1)
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In []: title('sin(y)')
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In []: savefig('sine.png')
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In []: close()
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In []: close()
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\end{lstlisting}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Showing it better}
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\vspace{-0.15in}
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\begin{lstlisting}
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In []: plot(y, cos(y), 'r')
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In []: clf()
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In []: plot(y, sin(y), 'g', linewidth=2)
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\end{lstlisting}
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\vspace*{-0.2in}
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\begin{center}
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  \includegraphics[height=2.2in, interpolate=true]{data/green}  
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\end{center}
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%\inctime{10}
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Annotating}
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\vspace*{-0.15in}
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\begin{lstlisting}
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In []: annotate('local max', xy=(1.5, 1))
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\end{lstlisting}
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\vspace*{-0.2in}
fe6a38572a65 Added changes suggested by PR for session 1 day 1.
Shantanu <shantanu@fossee.in>
parents: 138
diff changeset
   386
\begin{center}
fe6a38572a65 Added changes suggested by PR for session 1 day 1.
Shantanu <shantanu@fossee.in>
parents: 138
diff changeset
   387
  \includegraphics[height=2in, interpolate=true]{data/annotate}  
fe6a38572a65 Added changes suggested by PR for session 1 day 1.
Shantanu <shantanu@fossee.in>
parents: 138
diff changeset
   388
\end{center}
110
220ac08e67b5 Added Legend placement and Annotating.
Puneeth Chaganti <punchagan@fossee.in>
parents: 107
diff changeset
   389
\end{frame}
220ac08e67b5 Added Legend placement and Annotating.
Puneeth Chaganti <punchagan@fossee.in>
parents: 107
diff changeset
   390
220ac08e67b5 Added Legend placement and Annotating.
Puneeth Chaganti <punchagan@fossee.in>
parents: 107
diff changeset
   391
\begin{frame}[fragile]
381
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   392
\frametitle{Axes lengths}
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   393
\emphbar{Getting axes lengths}
107
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   394
  \begin{lstlisting}
381
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   395
In []: xmin, xmax = xlim() 
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   396
In []: ymin, ymax = ylim() 
427
66d296ff31b9 Minor changes to session1.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 426
diff changeset
   397
In []: print xmin, xmax 
303
26f5e864a135 Updated session 1 of day 1.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 293
diff changeset
   398
  \end{lstlisting}
381
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   399
\emphbar{Set the axes limits}
303
26f5e864a135 Updated session 1 of day 1.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 293
diff changeset
   400
  \begin{lstlisting}
381
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   401
In []: xlim(xmin, 2*pi )
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   402
In []: ylim(ymin-0.2, ymax+0.2)
107
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   403
  \end{lstlisting}
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   404
\end{frame}
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   405
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   406
\begin{frame}[fragile]
387
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   407
  \frametitle{Axes lengths}
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   408
  \begin{center}
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   409
    \includegraphics[height=3in, interpolate=true]{data/limits}
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   410
  \end{center}
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   411
\end{frame}
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   412
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   413
\begin{frame}[fragile]
407
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   414
\frametitle{IPython tips \ldots}
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   415
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   416
\begin{itemize}
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   417
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   418
    \item Try:
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   419
\begin{lstlisting}
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   420
In []: plot?
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   421
\end{lstlisting}
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   422
        to get more information on \typ{plot} 
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   423
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   424
        \vspace*{0.5in}
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   425
    \item Try: 
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   426
\begin{lstlisting}
413
984d8a3394cc Minor edits. Reorder dependency files so easier to eyeball with ls output. Fix typo for showing source in ipython.
Christopher Burns <chris.d.burns@gmail.com>
parents: 407
diff changeset
   427
In []: plot??
407
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   428
\end{lstlisting}
413
984d8a3394cc Minor edits. Reorder dependency files so easier to eyeball with ls output. Fix typo for showing source in ipython.
Christopher Burns <chris.d.burns@gmail.com>
parents: 407
diff changeset
   429
    to see the source code for \typ{plot}
407
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   430
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   431
\end{itemize}
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   432
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   433
\end{frame}
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   434
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   435
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   436
\begin{frame}[fragile]
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   437
\frametitle{Review Problem}
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   438
\begin{enumerate}
171
29c0c504750c Added some changes suggested during the review.
Shantanu <shantanu@fossee.in>
parents: 147
diff changeset
   439
\item Plot x, -x, sin(x), xsin(x) in range $-5\pi$ to $5\pi$
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   440
\item Add a legend
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   441
\item Annotate the origin
303
26f5e864a135 Updated session 1 of day 1.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 293
diff changeset
   442
\item Set axes limits to the range of x
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   443
\end{enumerate}
337
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   444
\vspace*{-0.1in}
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   445
\begin{center}
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   446
  \includegraphics[height=2.1in, interpolate=true]{data/four_plot}  
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   447
\end{center}
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   448
\end{frame}
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   449
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   450
\begin{frame}[fragile]
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   451
\frametitle{Review Problem \ldots}
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   452
\alert{Plotting \ldots}
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   453
\begin{lstlisting}
414
68ef3dced7a0 Add whitespace to assignment.
Christopher Burns <chris.d.burns@gmail.com>
parents: 413
diff changeset
   454
In []: x = linspace(-5*pi, 5*pi, 500)
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   455
In []: plot(x, x, 'b')
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   456
In []: plot(x, -x, 'b')
337
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   457
In []: plot(x, sin(x), 'g', linewidth=2)
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   458
In []: plot(x, x*sin(x), 'r', 
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   459
            linewidth=3)
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   460
\end{lstlisting}
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   461
$\vdots$
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   462
\end{frame}
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   463
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   464
\begin{frame}[fragile]
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   465
\frametitle{Review Problem \ldots}
337
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   466
\alert{Legend \& Annotation\ldots}
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   467
\begin{lstlisting}
264
c3a1de5b8216 Updated day1 session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 247
diff changeset
   468
In []: legend(['x', '-x', 'sin(x)', 
c3a1de5b8216 Updated day1 session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 247
diff changeset
   469
               'xsin(x)'])
c3a1de5b8216 Updated day1 session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 247
diff changeset
   470
In []: annotate('origin', xy = (0, 0))
337
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   471
\end{lstlisting}
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   472
\alert{Setting Axes limits\ldots}
56aa2efbf7d9 Changes at scipy.in
Puneeth Chaganti <punchagan@fossee.in>
parents: 330
diff changeset
   473
\begin{lstlisting}
264
c3a1de5b8216 Updated day1 session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 247
diff changeset
   474
In []: xlim(-5*pi, 5*pi)
c3a1de5b8216 Updated day1 session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 247
diff changeset
   475
In []: ylim(-5*pi, 5*pi)
147
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   476
\end{lstlisting}
6874a667dc4e Added review at end of session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 143
diff changeset
   477
\end{frame}
264
c3a1de5b8216 Updated day1 session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 247
diff changeset
   478
280
9bed85f05eb8 Added save command in session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 279
diff changeset
   479
\begin{frame}[fragile]
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   480
\frametitle{Command History}
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   481
Use the \typ{\%hist} \alert{magic} command of IPython 
303
26f5e864a135 Updated session 1 of day 1.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 293
diff changeset
   482
\typ{In []: \%hist}\\
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   483
This displays all the commands typed in so far aka Command History.
303
26f5e864a135 Updated session 1 of day 1.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 293
diff changeset
   484
\begin{block}{Careful about errors!}
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   485
  \kwrd{\%hist} will contain the errors as well.\\
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   486
\end{block}
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   487
\begin{block}{Magic Commands?}
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   488
  Magic commands are commands provided by IPython to make our life easier.
303
26f5e864a135 Updated session 1 of day 1.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 293
diff changeset
   489
\end{block}
280
9bed85f05eb8 Added save command in session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 279
diff changeset
   490
\end{frame}
9bed85f05eb8 Added save command in session1.
Puneeth Chaganti <punchagan@fossee.in>
parents: 279
diff changeset
   491
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   492
\begin{frame}[fragile]
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   493
  \frametitle{Saving commands into script}
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   494
Use the \typ{\%save} \alert{magic} command of IPython
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   495
\begin{block}{}
381
b797cd67982b Updated changes from GRDCS.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 379
diff changeset
   496
\typ{\%save script_name line_numbers}
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   497
\end{block}
415
331aaca9d779 Line numbers for history can be separated by spaces, not commas.
Christopher Burns <chris.d.burns@gmail.com>
parents: 414
diff changeset
   498
Line numbers can be specified individually separated by spaces or as a range separated by a dash.\\
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   499
\begin{block}{}
439
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   500
\typ{\%save four_plot.py} \alert{\typ{  16-18 21 25 27-32}} \\  
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   501
\end{block}
439
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   502
This saves from the history the commands entered on line numbers \alert{16, 17, 18, 21, 25, 27, 28, 29, 30, 31, 32}
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   503
\end{frame}
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   504
171
29c0c504750c Added some changes suggested during the review.
Shantanu <shantanu@fossee.in>
parents: 147
diff changeset
   505
\begin{frame}
293
f7d7b5565232 Added another ODE example to session6.
Puneeth Chaganti <punchagan@fossee.in>
parents: 290
diff changeset
   506
\frametitle{Python Scripts\ldots}
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   507
Now, four\_plot.py is called a Python Script.
293
f7d7b5565232 Added another ODE example to session6.
Puneeth Chaganti <punchagan@fossee.in>
parents: 290
diff changeset
   508
 \begin{itemize}
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   509
 \item run the script in IPython using \typ{\%run four_plot.py}\\
293
f7d7b5565232 Added another ODE example to session6.
Puneeth Chaganti <punchagan@fossee.in>
parents: 290
diff changeset
   510
 \end{itemize}
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   511
\pause
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   512
\alert{\typ{NameError: name 'linspace' is not defined}}
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   513
\begin{block}{}
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   514
To avoid this, run using \alert{\typ{\%run -i four_plot.py}}\\
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   515
\end{block}
293
f7d7b5565232 Added another ODE example to session6.
Puneeth Chaganti <punchagan@fossee.in>
parents: 290
diff changeset
   516
\end{frame}
f7d7b5565232 Added another ODE example to session6.
Puneeth Chaganti <punchagan@fossee.in>
parents: 290
diff changeset
   517
303
26f5e864a135 Updated session 1 of day 1.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 293
diff changeset
   518
\begin{frame}[fragile]
439
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   519
\frametitle{Doing this in Sage\ldots}
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   520
 \begin{itemize}
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   521
 \item Change the language to =Python= 
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   522
 \item Make a simple plot and save it
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   523
   \begin{lstlisting}
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   524
     from pylab import *
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   525
     x = linspace(0, 2*pi, 50)
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   526
     plot(x, sin(x))
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   527
     savefig('sample-sin.png')
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   528
   \end{lstlisting}
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   529
 \end{itemize}
387
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   530
\end{frame}
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   531
5e485a5d8ac4 Minor corrections post SVCE.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 385
diff changeset
   532
\begin{frame}[fragile]
246
d054581ef4b1 Made changes to Goals and added outline slides.
Madhusudan.C.S <madhusudancs@gmail.com>
parents: 225
diff changeset
   533
  \frametitle{What did we learn?}
171
29c0c504750c Added some changes suggested during the review.
Shantanu <shantanu@fossee.in>
parents: 147
diff changeset
   534
  \begin{itemize}
373
f04eca8b2f3d Commits from NIT DGP and IITK
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 366
diff changeset
   535
    \item Starting up IPython
407
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   536
    \item Creating simple plots
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   537
    \item Adding labels and legends
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   538
    \item Annotating plots
246
d054581ef4b1 Made changes to Goals and added outline slides.
Madhusudan.C.S <madhusudancs@gmail.com>
parents: 225
diff changeset
   539
    \item Changing the looks: size, linewidth
407
b5d3b5ddac7b Added changes to session 1. Added some IPython tips.
Prabhu Ramachandran <prabhu@aero.iitb.ac.in>
parents: 405
diff changeset
   540
    \item Accessing history, documentation
379
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   541
    \item \kwrd{\%hist} - History of commands
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   542
    \item \kwrd{\%save} - Saving commands 
682b6f66fe11 Updated for day1 of GRD workshop.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents: 378
diff changeset
   543
    \item Running a script using \kwrd{\%run -i}
439
d85c3ed8545c Updated day1/session1.tex and some image files.
Puneeth Chaganti <punchagan@gmail.com>
parents: 427
diff changeset
   544
    \item Using \lstinline|pylab| in Sage
171
29c0c504750c Added some changes suggested during the review.
Shantanu <shantanu@fossee.in>
parents: 147
diff changeset
   545
  \end{itemize}
107
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   546
\end{frame}
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   547
647239f95c4a Added rough draft of slides and cheatsheet for Interactive Plotting.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
   548
\end{document}
140
fe6a38572a65 Added changes suggested by PR for session 1 day 1.
Shantanu <shantanu@fossee.in>
parents: 138
diff changeset
   549
343
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   550
%% Questions for Quiz %%
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   551
%% ------------------ %%
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   552
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   553
\begin{frame}[fragile]
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   554
\frametitle{\incqno }
352
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   555
Draw (roughly) the plot obtained by the following:
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   556
\begin{lstlisting}
358
162e3e453920 Added files to be circulated during workshops.
Puneeth Chaganti <punchagan@fossee.in>
parents: 354
diff changeset
   557
In []: x = linspace(0, pi, 3)
352
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   558
In []: plot(x, sin(x))
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   559
\end{lstlisting}
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   560
\end{frame}
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   561
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   562
\begin{frame}[fragile]
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   563
\frametitle{\incqno }
343
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   564
Describe the plot produced by the following:
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   565
\begin{lstlisting}
352
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   566
In []: x = linspace(0, 2*pi, 50)
343
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   567
In []: plot(x, cos(x), 'go')
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   568
\end{lstlisting}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   569
\end{frame}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   570
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   571
\begin{frame}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   572
\frametitle{\incqno }
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   573
How will you plot the previous graph with line width set to 3?  How will
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   574
you set the $x$ and $y$ labels of the plot?
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   575
\end{frame}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   576
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   577
\begin{frame}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   578
\frametitle{\incqno }
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   579
How will you set the x and y axis limits so that the region of interest
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   580
is in the rectangle $(0, -1.5)$ (left bottom coordinate) and $(2\pi,
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   581
1.5)$ (right top coordinate)?
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   582
\end{frame}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   583
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   584
\begin{frame}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   585
\frametitle{\incqno }
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   586
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?
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   587
\end{frame}
adb85e126341 Moved all day1 quiz questions to end of day1-sessions.
Puneeth Chaganti <punchagan@fossee.in>
parents: 342
diff changeset
   588
354
5dc6c3673f9d Changes made during REC Chennai workshop.
Puneeth Chaganti <punchagan@fossee.in>
parents: 352
diff changeset
   589
\begin{frame}[fragile]
352
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   590
\frametitle{\incqno }
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   591
The following code snippet has an error/bug:
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   592
\begin{lstlisting}
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   593
In []: y = linspace(0, 2*pi, 50)
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   594
In []: plot(y, sin(y))
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   595
In []: clf()
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   596
In []: plot(y, cos(y))
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   597
In []: legend(['sin(y)', 'cos(y)']) 
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   598
\end{lstlisting}
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   599
What is the error? How do you fix it?  
b44d7bcc6609 Added a few quiz questions; Minor edits.
Puneeth Chaganti <punchagan@fossee.in>
parents: 343
diff changeset
   600
\end{frame}