author | bhanu |
Mon, 08 Nov 2010 01:34:02 +0530 | |
changeset 454 | 0c69c2b32183 |
parent 365 | 0fbe8a18587f |
permissions | -rw-r--r-- |
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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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|
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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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|
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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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86 |
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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95 |
squares of even numbers below 10, to print the squares of only |
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96 |
multiples of 4. (Do not modify the range function call.) |
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97 |
\end{frame} |
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98 |
\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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103 |
for n in range(2, 10, 2): |
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104 |
if n%4: |
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continue |
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106 |
print n*n |
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107 |
\end{verbatim} |
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\end{frame} |
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\begin{frame} |
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\frametitle{Summary} |
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111 |
\label{sec-8} |
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112 |
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113 |
You should now be able to -- |
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114 |
\begin{itemize} |
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115 |
\item use the \texttt{for} loop |
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116 |
\item use the \texttt{while} loop |
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117 |
\item Use \texttt{break}, \texttt{continue} and \texttt{pass} statements |
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118 |
\end{itemize} |
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119 |
\end{frame} |
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120 |
\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} |