# HG changeset patch # User Puneeth Chaganti # Date 1286739037 -19800 # Node ID 461a68dbefb14e9cf33e93842f5dc3429844dfdb # Parent d4cee7ebcf9bdea66466b228ea9d1a6775bbb15f Slides for loops LO. diff -r d4cee7ebcf9b -r 461a68dbefb1 loops/script.rst --- a/loops/script.rst Mon Oct 11 01:00:14 2010 +0530 +++ b/loops/script.rst Mon Oct 11 01:00:37 2010 +0530 @@ -63,7 +63,7 @@ Following is an exercise that you must do. %%1%% Write a ``while`` loop to print the squares of all the even -numbers below 10. Then, return to the video. +numbers below 10. Please, pause the video here. Do the exercise and then continue. @@ -88,8 +88,8 @@ Following is an exercise that you must do. -%%2%% Pause the video here and write a ``for`` loop to print the -squares of all the even numbers below 10. Then, return to the video. +%%2%% Write a ``for`` loop to print the squares of all the even +numbers below 10. Please, pause the video here. Do the exercise and then continue. diff -r d4cee7ebcf9b -r 461a68dbefb1 loops/slides.org --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/loops/slides.org Mon Oct 11 01:00:37 2010 +0530 @@ -0,0 +1,87 @@ +#+LaTeX_CLASS: beamer +#+LaTeX_CLASS_OPTIONS: [presentation] +#+BEAMER_FRAME_LEVEL: 1 + +#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} +#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra) +#+PROPERTY: BEAMER_col_ALL 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 :ETC + +#+LaTeX_CLASS: beamer +#+LaTeX_CLASS_OPTIONS: [presentation] + +#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl} +#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet} + +#+LaTeX_HEADER: \usepackage{listings} + +#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries, +#+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, +#+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries} + +#+TITLE: Loops +#+AUTHOR: FOSSEE +#+EMAIL: +#+DATE: + +#+DESCRIPTION: +#+KEYWORDS: +#+LANGUAGE: en +#+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t +#+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc + +* Outline + - Loop while a condition is true. + - Iterate over a sequence + - Breaking out of loops. + - Skipping iterations. +* Question 1 + Write a ~while~ loop to print the squares of all the even + numbers below 10. +* Solution 1 + #+begin_src python + In []: i = 2 + + In []: while i<10: + ....: print i*i + ....: i += 2 + #+end_src +* Question 2 + Write a ~for~ loop to print the squares of all the even numbers + below 10. +* Solution 2 + #+begin_src python + In []: for n in range(2, 10, 2): + ....: print n*n + #+end_src +* Question 3 + Using the ~continue~ keyword modify the ~for~ loop to print the + squares of even numbers below 10, to print the squares of only + multiples of 4. (Do not modify the range function call.) +* Solution 3 + #+begin_src python + for n in range(2, 10, 2): + if n%4: + continue + print n*n + #+end_src +* Summary + You should now be able to -- + - use the ~for~ loop + - use the ~while~ loop + - Use ~break~, ~continue~ and ~pass~ statements +* Thank you! +#+begin_latex + \begin{block}{} + \begin{center} + This spoken tutorial has been produced by the + \textcolor{blue}{FOSSEE} team, which is funded by the + \end{center} + \begin{center} + \textcolor{blue}{National Mission on Education through \\ + Information \& Communication Technology \\ + MHRD, Govt. of India}. + \end{center} + \end{block} +#+end_latex + + diff -r d4cee7ebcf9b -r 461a68dbefb1 loops/slides.tex --- a/loops/slides.tex Mon Oct 11 01:00:14 2010 +0530 +++ b/loops/slides.tex Mon Oct 11 01:00:37 2010 +0530 @@ -1,95 +1,128 @@ -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%Tutorial slides on Python. -% -% Author: FOSSEE -% Copyright (c) 2009, FOSSEE, IIT Bombay -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -\documentclass[14pt,compress]{beamer} -%\documentclass[draft]{beamer} -%\documentclass[compress,handout]{beamer} -%\usepackage{pgfpages} -%\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm] - -% Modified from: generic-ornate-15min-45min.de.tex -\mode -{ - \usetheme{Warsaw} - \useoutertheme{infolines} - \setbeamercovered{transparent} -} - -\usepackage[english]{babel} +% Created 2010-10-10 Sun 21:15 +\documentclass[presentation]{beamer} \usepackage[latin1]{inputenc} -%\usepackage{times} \usepackage[T1]{fontenc} - -\usepackage{ae,aecompl} -\usepackage{mathpazo,courier,euler} -\usepackage[scaled=.95]{helvet} +\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}} -\definecolor{darkgreen}{rgb}{0,0.5,0} - -\usepackage{listings} -\lstset{language=Python, - basicstyle=\ttfamily\bfseries, - commentstyle=\color{red}\itshape, - stringstyle=\color{darkgreen}, - showstringspaces=false, - keywordstyle=\color{blue}\bfseries} - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% Macros -\setbeamercolor{emphbar}{bg=blue!20, fg=black} -\newcommand{\emphbar}[1] -{\begin{beamercolorbox}[rounded=true]{emphbar} - {#1} - \end{beamercolorbox} -} -\newcounter{time} -\setcounter{time}{0} -\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}} - -\newcommand{\typ}[1]{\lstinline{#1}} - -\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}} } - -% Title page -\title{Your Title Here} - -\author[FOSSEE] {FOSSEE} - -\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay} +\title{Loops} +\author{FOSSEE} \date{} -% DOCUMENT STARTS +\usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} \begin{document} +\maketitle + + + + + + + + + \begin{frame} - \maketitle +\frametitle{Outline} +\label{sec-1} + +\begin{itemize} +\item Loop while a condition is true. +\item Iterate over a sequence +\item Breaking out of loops. +\item Skipping iterations. +\end{itemize} \end{frame} +\begin{frame} +\frametitle{Question 1} +\label{sec-2} + Write a \texttt{while} loop to print the squares of all the even + numbers below 10. +\end{frame} \begin{frame}[fragile] - \frametitle{Outline} - \begin{itemize} - \item - \end{itemize} +\frametitle{Solution 1} +\label{sec-3} + +\lstset{language=Python} +\begin{lstlisting} +In []: i = 2 + +In []: while i<10: + ....: print i*i + ....: i += 2 +\end{lstlisting} \end{frame} +\begin{frame} +\frametitle{Question 2} +\label{sec-4} + + Write a \texttt{for} loop to print the squares of all the even numbers + below 10. +\end{frame} +\begin{frame}[fragile] +\frametitle{Solution 2} +\label{sec-5} -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%% All other slides here. %% -%% The same slides will be used in a classroom setting. %% -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +\lstset{language=Python} +\begin{lstlisting} +In []: for n in range(2, 10, 2): + ....: print n*n +\end{lstlisting} +\end{frame} +\begin{frame} +\frametitle{Question 3} +\label{sec-6} + Using the \texttt{continue} keyword modify the \texttt{for} loop to print the + squares of even numbers below 10, to print the squares of only + multiples of 4. (Do not modify the range function call.) +\end{frame} \begin{frame}[fragile] - \frametitle{Summary} - \begin{itemize} - \item - \end{itemize} +\frametitle{Solution 3} +\label{sec-7} + +\lstset{language=Python} +\begin{lstlisting} +for n in range(2, 10, 2): + if n%4: + continue + print n*n +\end{lstlisting} \end{frame} - \begin{frame} - \frametitle{Thank you!} +\frametitle{Summary} +\label{sec-8} + + You should now be able to -- +\begin{itemize} +\item use the \texttt{for} loop +\item use the \texttt{while} loop +\item Use \texttt{break}, \texttt{continue} and \texttt{pass} statements +\end{itemize} +\end{frame} +\begin{frame} +\frametitle{Thank you!} +\label{sec-9} + \begin{block}{} \begin{center} This spoken tutorial has been produced by the