loops/slides.tex
author bhanu
Mon, 08 Nov 2010 01:34:02 +0530
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permissions -rw-r--r--
Language check done for the script `strings`
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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% Created 2010-10-27 Wed 17:51
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\documentclass[presentation]{beamer}
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\usepackage[latin1]{inputenc}
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\usepackage[T1]{fontenc}
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\usepackage{fixltx2e}
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\usepackage{graphicx}
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\usepackage{longtable}
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\usepackage{float}
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\usepackage{wrapfig}
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\usepackage{soul}
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\usepackage{t1enc}
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\usepackage{textcomp}
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\usepackage{marvosym}
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\usepackage{wasysym}
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\usepackage{latexsym}
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\usepackage{amssymb}
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\usepackage{hyperref}
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\tolerance=1000
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\usepackage[english]{babel} \usepackage{ae,aecompl}
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\usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
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\usepackage{listings}
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\lstset{language=Python, basicstyle=\ttfamily\bfseries,
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commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
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showstringspaces=false, keywordstyle=\color{blue}\bfseries}
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\providecommand{\alert}[1]{\textbf{#1}}
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\title{Loops}
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\author{FOSSEE}
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\date{}
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\usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
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\begin{document}
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\maketitle
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\begin{frame}
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\frametitle{Outline}
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\label{sec-1}
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\begin{itemize}
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\item Loop while a condition is true.
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\item Iterate over a sequence
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\item Breaking out of loops.
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\item Skipping iterations.
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\end{itemize}
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\end{frame}
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\begin{frame}
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\frametitle{Question 1}
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\label{sec-2}
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  Write a \texttt{while} loop to print the squares of all the even
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  numbers below 10. 
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Solution 1}
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\label{sec-3}
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\begin{verbatim}
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In []: i = 2
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In []:  while i<10:
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 ....:     print i*i
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 ....:     i += 2
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\end{verbatim}
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\end{frame}
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\begin{frame}
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\frametitle{Question 2}
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\label{sec-4}
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  Write a \texttt{for} loop to print the squares of all the even numbers
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  below 10.
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Solution 2}
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\label{sec-5}
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\begin{verbatim}
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In []: for n in range(2, 10, 2):
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 ....:     print n*n
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\end{verbatim}
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\end{frame}
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\begin{frame}
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\frametitle{Question 3}
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\label{sec-6}
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  Using the \texttt{continue} keyword modify the \texttt{for} loop to print the
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  squares of even numbers below 10, to print the squares of only
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  multiples of 4. (Do not modify the range function call.)
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\end{frame}
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\begin{frame}[fragile]
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\frametitle{Solution 3}
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\label{sec-7}
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\begin{verbatim}
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for n in range(2, 10, 2):
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    if n%4:
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        continue      
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    print n*n
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\end{verbatim}
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\end{frame}
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\begin{frame}
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\frametitle{Summary}
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\label{sec-8}
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  You should now be able to --
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\begin{itemize}
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\item use the \texttt{for} loop
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\item use the \texttt{while} loop
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\item Use \texttt{break}, \texttt{continue} and \texttt{pass} statements
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\end{itemize}
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\end{frame}
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\begin{frame}
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\frametitle{Thank you!}
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\label{sec-9}
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  \begin{block}{}
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  \begin{center}
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  This spoken tutorial has been produced by the
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  \textcolor{blue}{FOSSEE} team, which is funded by the 
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  \end{center}
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  \begin{center}
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    \textcolor{blue}{National Mission on Education through \\
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      Information \& Communication Technology \\ 
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      MHRD, Govt. of India}.
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  \end{center}  
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  \end{block}
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\end{frame}
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\end{document}