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    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:    Manipulating Lists

    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 #+STARTUP:    align fold nodlcheck hidestars oddeven lognotestate

    32 

    33 * Outline

    34   In this session we shall be looking at 

    35   - Concatenating lists

    36   - Obtaining parts of lists

    37   - Sorting lists

    38   - Reversing lists

    39 * Question 1

    40   Obtain the primes less than 10, from the list ~primes~. 

    41 * Solution 1

    42   #+begin_src python

    43     primes[0:4]

    44   #+end_src python

    45 * Slicing

    46   #+begin_src python

    47     p[start:stop]

    48   #+end_src python

    49   - Returns all elements of ~p~ between ~start~ and ~stop~

    50   - The element with index equal to ~stop~ is *not* included. 

    51 * Question 2

    52   Obtain all the multiples of three from the list ~num~.

    53 * Solution 2

    54   #+begin_src python

    55     num[::3]  

    56   #+end_src python

    57 * Question 3

    58   Given a list of marks of students in an examination, obtain a list

    59   with marks in descending order.

    60   #+begin_src python

    61     marks = [99, 67, 47, 100, 50, 75, 62]

    62   #+end_src python

    63 * Solution 3

    64   #+begin_src python

    65     sorted(marks)[::-1]

    66   #+end_src python

    67 OR

    68   #+begin_src python

    69     sorted(marks, reverse=True)

    70   #+end_src python

    71 

    72 * Summary

    73   In this tutorial session we learnt

    74     + Obtaining parts of lists using slicing and striding

    75     + List concatenation

    76     + Sorting lists 

    77     + Reversing lists

    78 

    79 * Thank you!

    80 #+begin_latex

    81   \begin{block}{}

    82   \begin{center}

    83   This spoken tutorial has been produced by the

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

    85   \end{center}

    86   \begin{center}

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

    88       Information \& Communication Technology \\ 

    89       MHRD, Govt. of India}.

    90   \end{center}  

    91   \end{block}

    92 #+end_latex

    93 

    94