loops/slides.org
author Anoop Jacob Thomas<anoop@fossee.in>
Sat, 18 Dec 2010 12:54:49 +0530
changeset 524 b602b4dcc87d
parent 278 461a68dbefb1
permissions -rw-r--r--
Made some changes to the script embellishing a plot, but it still needs changes.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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#+LaTeX_CLASS: beamer
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#+LaTeX_CLASS_OPTIONS: [presentation]
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#+BEAMER_FRAME_LEVEL: 1
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#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
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#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra)
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#+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
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#+LaTeX_CLASS: beamer
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#+LaTeX_CLASS_OPTIONS: [presentation]
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#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl}
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#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
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#+LaTeX_HEADER: \usepackage{listings}
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#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,
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#+LaTeX_HEADER:  commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
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#+LaTeX_HEADER:  showstringspaces=false, keywordstyle=\color{blue}\bfseries}
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#+TITLE:    Loops
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#+AUTHOR:    FOSSEE
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#+EMAIL:     
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#+DATE:    
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#+DESCRIPTION: 
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#+KEYWORDS: 
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#+LANGUAGE:  en
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#+OPTIONS:   H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
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#+OPTIONS:   TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc
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* Outline
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  - Loop while a condition is true. 
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  - Iterate over a sequence
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  - Breaking out of loops.
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  - Skipping iterations.
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* Question 1
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  Write a ~while~ loop to print the squares of all the even
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  numbers below 10. 
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* Solution 1
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  #+begin_src python
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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_src
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* Question 2
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  Write a ~for~ loop to print the squares of all the even numbers
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  below 10.
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* Solution 2
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  #+begin_src python    
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    In []: for n in range(2, 10, 2):
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     ....:     print n*n
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  #+end_src
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* Question 3
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  Using the ~continue~ keyword modify the ~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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* Solution 3
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  #+begin_src python    
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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_src
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* Summary
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  You should now be able to --
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  - use the ~for~ loop 
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  - use the ~while~ loop
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  - Use ~break~, ~continue~ and ~pass~ statements 
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* Thank you!
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#+begin_latex
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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_latex
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