1 #+LaTeX_CLASS: beamer

     2 #+LaTeX_CLASS_OPTIONS: [presentation]

     3 #+BEAMER_FRAME_LEVEL: 1

     4 

     5 #+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}

     6 #+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra)

     7 #+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

     8 

     9 #+LaTeX_CLASS: beamer

    10 #+LaTeX_CLASS_OPTIONS: [presentation]

    11 

    12 #+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl}

    13 #+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}

    14 

    15 #+LaTeX_HEADER: \usepackage{listings}

    16 

    17 #+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,

    18 #+LaTeX_HEADER:  commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},

    19 #+LaTeX_HEADER:  showstringspaces=false, keywordstyle=\color{blue}\bfseries}

    20 

    21 #+TITLE:    Loops

    22 #+AUTHOR:    FOSSEE

    23 #+EMAIL:     

    24 #+DATE:    

    25 

    26 #+DESCRIPTION: 

    27 #+KEYWORDS: 

    28 #+LANGUAGE:  en

    29 #+OPTIONS:   H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t

    30 #+OPTIONS:   TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc

    31 

    32 * Outline

    33   - Loop while a condition is true. 

    34   - Iterate over a sequence

    35   - Breaking out of loops.

    36   - Skipping iterations.

    37 * Question 1

    38   Write a ~while~ loop to print the squares of all the even

    39   numbers below 10. 

    40 * Solution 1

    41   #+begin_src python

    42     In []: i = 2

    43     

    44     In []:  while i<10:

    45      ....:     print i*i

    46      ....:     i += 2

    47   #+end_src

    48 * Question 2

    49   Write a ~for~ loop to print the squares of all the even numbers

    50   below 10.

    51 * Solution 2

    52   #+begin_src python    

    53     In []: for n in range(2, 10, 2):

    54      ....:     print n*n

    55   #+end_src

    56 * Question 3

    57   Using the ~continue~ keyword modify the ~for~ loop to print the

    58   squares of even numbers below 10, to print the squares of only

    59   multiples of 4. (Do not modify the range function call.)

    60 * Solution 3

    61   #+begin_src python    

    62     for n in range(2, 10, 2):

    63         if n%4:

    64             continue      

    65         print n*n

    66   #+end_src

    67 * Summary

    68   You should now be able to --

    69   - use the ~for~ loop 

    70   - use the ~while~ loop

    71   - Use ~break~, ~continue~ and ~pass~ statements 

    72 * Thank you!

    73 #+begin_latex

    74   \begin{block}{}

    75   \begin{center}

    76   This spoken tutorial has been produced by the

    77   \textcolor{blue}{FOSSEE} team, which is funded by the 

    78   \end{center}

    79   \begin{center}

    80     \textcolor{blue}{National Mission on Education through \\

    81       Information \& Communication Technology \\ 

    82       MHRD, Govt. of India}.

    83   \end{center}  

    84   \end{block}

    85 #+end_latex

    86 

    87