% Created 2011-05-24 Tue 09:52 \documentclass[presentation]{beamer} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage{fixltx2e} \usepackage{graphicx} \usepackage{longtable} \usepackage{float} \usepackage{wrapfig} \usepackage{soul} \usepackage{textcomp} \usepackage{marvosym} \usepackage{wasysym} \usepackage{latexsym} \usepackage{amssymb} \usepackage{hyperref} \tolerance=1000 \usepackage[english]{babel} \usepackage{ae,aecompl} \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet} \usepackage{listings} \lstset{language=Python, basicstyle=\ttfamily\bfseries, commentstyle=\color{red}\itshape, stringstyle=\color {darkgreen}, showstringspaces=false, keywordstyle=\color{blue}\bfseries} \providecommand{\alert}[1]{\textbf{#1}} \title{} \author{FOSSEE} \date{2010-09-14 Tue} \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} \begin{document} \begin{frame} \begin{center} \vspace{12pt} \textcolor{blue}{\huge Getting started with Lists} \end{center} \vspace{18pt} \begin{center} \vspace{10pt} \includegraphics[scale=0.95]{../images/fossee-logo.png}\\ \vspace{5pt} \scriptsize Developed by FOSSEE Team, IIT-Bombay. \\ \scriptsize Funded by National Mission on Education through ICT\\ \scriptsize MHRD,Govt. of India\\ \includegraphics[scale=0.30]{../images/iitb-logo.png}\\ \end{center} \end{frame} \begin{frame} \frametitle{Objectives} \label{sec-2} At the end of this tutorial, you will be able to, \begin{itemize} \item Create lists \item Access list elements \item Append elements to lists \item Delete elements from lists \end{itemize} \end{frame} \begin{frame} \frametitle{Exercise 1} \label{sec-3} \begin{itemize} \item What happens when you do nonempty[-1]. \end{itemize} \end{frame} \begin{frame} \frametitle{Exercise 2} \label{sec-4} \begin{itemize} \item What is the syntax to get the element `and' in the list,listinlist ? \item How would you get `and' using negative indices? \end{itemize} \end{frame} \begin{frame}[fragile] \frametitle{Solution 2} \label{sec-5} \lstset{language=Python} \begin{lstlisting} listinlist[1] listinlist[-5] \end{lstlisting} \end{frame} \begin{frame} \frametitle{Exercise 3} \label{sec-6} \begin{itemize} \item Remove the third element from the list, listinlist. \item Remove `and' from the list, listinlist. \end{itemize} \end{frame} \begin{frame}[fragile] \frametitle{Solution 3} \label{sec-7} \lstset{language=Python} \begin{lstlisting} del(listinlist[2]) listinlist.remove('and') \end{lstlisting} \end{frame} \begin{frame} \frametitle{Summary} \label{sec-8} In this tutorial, we have learnt to – \begin{itemize} \item Create lists. \item Access lists using their index numbers. \item Append elements to list using the function ``append``. \item Delete Element from lists by specifying the index number of the element to be deleted in the ``del`` function. \item Delete element from list by content using ``remove`` function. \item Find out the list length using the ``len`` function. \end{itemize} \end{frame} \begin{frame} \frametitle{Evaluation} \label{sec-9} \begin{enumerate} \item How do you create an empty list? \vspace{8pt} \item Can you have a list inside a list ? \vspace{8pt} \item How would you access the end of a list without finding its length? \end{enumerate} \end{frame} \begin{frame} \frametitle{Solutions} \label{sec-10} \begin{enumerate} \item empty=[] \vspace{8pt} \item Yes\\ list\_in\_list=[2.3,[2,4,6],'string,'all datatypes can be there'] \vspace{8pt} \item Using negative indices\\ nonempty = ['spam', `eggs', 100, 1.234]\\ nonempty[-1] \end{enumerate} \end{frame} \begin{frame} \begin{block}{} \begin{center} \textcolor{blue}{\Large THANK YOU!} \end{center} \end{block} \begin{block}{} \begin{center} For more Information, visit our website\\ \url{http://fossee.in/} \end{center} \end{block} \end{frame} \end{document}