#+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:      
#+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

* 
#+begin_latex
\begin{center}
\vspace{12pt}
\textcolor{blue}{\huge Loops}
\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_latex
* Objectives
  At the end of this tutorial, you will be able to,

 - use the ``for'' loop
 - use the ``while'' loop
 - Use ``break'', ``continue'' and ``pass'' statements to play around
   with loops.
* Pre-requisite
Spoken tutorial on -
- Getting started with ~for~.
- Conditionals.
* Exercise 1
  Write a ~while~ loop to print the squares of all the even
  numbers below 10. 
* Exercise 2
  Write a ~for~ loop to print the squares of all the even numbers
  below 10.
* Exercise 3
  Using the ~continue~ keyword modify the ~for~ loop to print the
  squares of even numbers below 10, which are multiples of 4.
  (Do not modify the range function call.)
* Summary
 In this tutorial, we have learnt to,
  - Iterate over a sequence using ``for'' and ``while'' loops.
  - Break out of loops using ``break'' statement.
  - Skip iterations using ``continue'' statement.
  - Use the ``pass'' statement in a loop. 
* Evaluation
 1. Given ``range(1,4)''; Write a code to print only the number 1.

 2. Which statement do you use to skip iterations.
    - break
    - pass
    - continue
* Solutions
1. 
#+begin_src Python
for i in range(1,4):
    print i
    break
#+end_src

2. ~continue~
* 
#+begin_latex
  \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_latex