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     1 % Created 2010-11-09 Tue 16:07

     2 %Tutorial slides on Python.

     2 \documentclass[presentation]{beamer}

     3 %

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     4 % Author: FOSSEE 

     4 \usepackage[T1]{fontenc}

     5 % Copyright (c) 2009, FOSSEE, IIT Bombay

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    24 \providecommand{\alert}[1]{\textbf{#1}}

     8 \documentclass[14pt,compress]{beamer}

    26 \title{Manipulating Lists}

     9 %\documentclass[draft]{beamer}

    27 \author{FOSSEE}

    10 %\documentclass[compress,handout]{beamer}

    11 %\usepackage{pgfpages} 

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    13 

    14 % Modified from: generic-ornate-15min-45min.de.tex

    15 \mode<presentation>

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    22 \usepackage[english]{babel}

    23 \usepackage[latin1]{inputenc}

    24 %\usepackage{times}

    25 \usepackage[T1]{fontenc}

    26 

    27 \usepackage{ae,aecompl}

    28 \usepackage{mathpazo,courier,euler}

    29 \usepackage[scaled=.95]{helvet}

    30 

    31 \definecolor{darkgreen}{rgb}{0,0.5,0}

    32 

    33 \usepackage{listings}

    34 \lstset{language=Python,

    35     basicstyle=\ttfamily\bfseries,

    36     commentstyle=\color{red}\itshape,

    37   stringstyle=\color{darkgreen},

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    40 

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    54 

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    56 

    57 % Title page

    58 \title{Your Title Here}

    59 

    60 \author[FOSSEE] {FOSSEE}

    61 

    62 \institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}

    65 % DOCUMENT STARTS

    30 \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}

    68 \begin{frame}

    33 \maketitle

    69   \maketitle

    70 \end{frame}

    84 \begin{frame}[fragile]

    37 

    85   \frametitle{Summary}

    38 

    86   \begin{itemize}

    39 

    87     \item 

    40 

    88   \end{itemize}

    41 

    89 \end{frame}

    92   \frametitle{Thank you!}  

    44 \frametitle{Outline}

    45 \label{sec-1}

    46 

    47   In this session we shall be looking at 

    48 \begin{itemize}

    49 \item Concatenating lists

    50 \item Obtaining parts of lists

    51 \item Sorting lists

    52 \item Reversing lists

    53 \end{itemize}

    54 \end{frame}

    55 \begin{frame}

    56 \frametitle{Question 1}

    57 \label{sec-2}

    58 

    59   Obtain the primes less than 10, from the list \texttt{primes}. 

    60 \end{frame}

    61 \begin{frame}[fragile]

    62 \frametitle{Solution 1}

    63 \label{sec-3}

    64 

    65 \lstset{language=Python}

    66 \begin{lstlisting}

    67 primes[0:4]

    68 \end{lstlisting}

    69 \end{frame}

    70 \begin{frame}[fragile]

    71 \frametitle{Slicing}

    72 \label{sec-4}

    73 

    74 \lstset{language=Python}

    75 \begin{lstlisting}

    76 p[start:stop]

    77 \end{lstlisting}

    78 \begin{itemize}

    79 \item Returns all elements of \texttt{p} between \texttt{start} and \texttt{stop}

    80 \item The element with index equal to \texttt{stop} is \textbf{not} included.

    81 \end{itemize}

    82 \end{frame}

    83 \begin{frame}

    84 \frametitle{Question 2}

    85 \label{sec-5}

    86 

    87   Obtain all the multiples of three from the list \texttt{num}.

    88 \end{frame}

    89 \begin{frame}[fragile]

    90 \frametitle{Solution 2}

    91 \label{sec-6}

    92 

    93 \lstset{language=Python}

    94 \begin{lstlisting}

    95 num[::3]

    96 \end{lstlisting}

    97 \end{frame}

    98 \begin{frame}[fragile]

    99 \frametitle{Question 3}

   100 \label{sec-7}

   101 

   102   Given a list of marks of students in an examination, obtain a list

   103   with marks in descending order.

   104 \lstset{language=Python}

   105 \begin{lstlisting}

   106 marks = [99, 67, 47, 100, 50, 75, 62]

   107 \end{lstlisting}

   108 \end{frame}

   109 \begin{frame}[fragile]

   110 \frametitle{Solution 3}

   111 \label{sec-8}

   112 

   113 \lstset{language=Python}

   114 \begin{lstlisting}

   115 sorted(marks)[::-1]

   116 \end{lstlisting}

   117 OR

   118 \lstset{language=Python}

   119 \begin{lstlisting}

   120 sorted(marks, reverse=True)

   121 \end{lstlisting}

   122 \end{frame}

   123 \begin{frame}

   124 \frametitle{Summary}

   125 \label{sec-9}

   126 

   127   In this tutorial session we learnt

   128 \begin{itemize}

   129 \item Obtaining parts of lists using slicing and striding

   130 \item List concatenation

   131 \item Sorting lists

   132 \item Reversing lists

   133 \end{itemize}

   134 \end{frame}

   135 \begin{frame}

   136 \frametitle{Thank you!}

   137 \label{sec-10}

   138