From 0ecb6713ccb7702c278d3db111f043b9b401eb5e Mon Sep 17 00:00:00 2001 From: Nishanth Amuluru Date: Thu, 7 Oct 2010 14:15:30 +0530 Subject: Made sets.rst into the new template form --- sets/quickref.tex | 11 ++++ sets/script.rst | 167 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ sets/slides.tex | 106 ++++++++++++++++++++++++++++++++++ 3 files changed, 284 insertions(+) create mode 100644 sets/quickref.tex create mode 100644 sets/script.rst create mode 100644 sets/slides.tex (limited to 'sets') diff --git a/sets/quickref.tex b/sets/quickref.tex new file mode 100644 index 0000000..a0212b3 --- /dev/null +++ b/sets/quickref.tex @@ -0,0 +1,11 @@ +Creating a tuple:\\ +{\ex \lstinline| t = (1, "hello", 2.5)|} + +Accessing elements of tuples:\\ +{\ex \lstinline| t[index] Ex: t[2]|} + +Accessing slices of tuples:\\ +{\ex \lstinline| t[start:stop:step]|} + +Swapping values:\\ +{\ex \lstinline| a, b = b, a|} diff --git a/sets/script.rst b/sets/script.rst new file mode 100644 index 0000000..944097f --- /dev/null +++ b/sets/script.rst @@ -0,0 +1,167 @@ +.. Objectives +.. ---------- + +.. A - Students and teachers from Science and engineering backgrounds + B - Will learn what are tuples and why they are needed + Will learn the various methods of accessing elements in tuples + C - + D - + +.. Prerequisites +.. ------------- + +.. 1. Getting started with lists + +.. Author : Nishanth Amuluru + Internal Reviewer : + External Reviewer : + Checklist OK? : [2010-10-05] + +Script +------ + +Hello friends and welcome to the tutorial on Sets + +{{{ Show the slide containing title }}} + +{{{ Show the slide containing the outline slide }}} + +In this tutorial, we shall learn + + * sets + * operations on sets + +Sets are data structures which contain unique elements. In other words, +duplicates are not allowed in sets. + +Lets look at how to input sets. +type +:: + + a_list = [1, 2, 1, 4, 5, 6, 7] + a = set(a_list) + a + +We can see that duplicates are removed and the set contains only unique +elements. +:: + + f10 = set([1, 2, 3, 5, 8]) + p10 = set([2, 3, 5, 7]) + +f10 is the set of fibonacci numbers from 1 to 10. +p10 is the set of prime numbers from 1 to 10. + +Various operations that we do on sets are possible here also. +The | character stands for union +:: + + f10 | p10 + +gives us the union of f10 and p10 + +The & character stands for intersection. +:: + + f10 & p10 + +gives the intersection + +similarly, +:: + + f10 - p10 + +gives all the elements that are in f10 but not in p10 + +:: + + f10 ^ p10 + +is all the elements in f10 union p10 but not in f10 intersection p10. In +mathematical terms, it gives the symmectric difference. + +Sets also support checking of subsets. +:: + + b = set([1, 2]) + b < f10 + +gives a True since b is a proper subset of f10. +Similarly, +:: + + f10 < f10 + +gives a False since f10 is not a proper subset. +hence the right way to do would be +:: + + f10 <= f10 + +and we get a True since every set is a subset of itself. + +Sets can be iterated upon just like lists and tuples. +:: + + for i in f10: + print i, + +prints the elements of f10. + +The length and containership check on sets is similar as in lists and tuples. +:: + + len(f10) + +shows 5. And +:: + + 1 in f10 + 2 in f10 + +prints True and False respectively + +The order in which elements are organised in a set is not to be relied upon +since sets do not support indexing. Hence, slicing and striding are not valid +on sets. + +{{{ Pause here and try out the following exercises }}} + +%% 1 %% Given a list of marks, marks = [20, 23, 22, 23, 20, 21, 23] + list all the duplicates + +{{{ continue from paused state }}} + +Duplicates marks are the marks left out when we remove each element of the +list exactly one time. + +:: + + marks = [20, 23, 22, 23, 20, 21, 23] + marks_set = set(marks) + for mark in marks_set: + marks.remove(mark) + + # we are now left with only duplicates in the list marks + duplicates = set(marks) + +{{{ Show summary slide }}} + +This brings us to the end of the tutorial. +we have learnt + + * How to make sets from lists + * How to input sets + * How to perform union, intersection and symmectric difference operations + * How to check if a set is a subset of other + * The various similarities with lists like length and containership + +{{{ Show the "sponsored by FOSSEE" slide }}} + +#[Nishanth]: Will add this line after all of us fix on one. +This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India + +Hope you have enjoyed and found it useful. +Thankyou + diff --git a/sets/slides.tex b/sets/slides.tex new file mode 100644 index 0000000..df1462c --- /dev/null +++ b/sets/slides.tex @@ -0,0 +1,106 @@ +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%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} +\usepackage[latin1]{inputenc} +%\usepackage{times} +\usepackage[T1]{fontenc} + +\usepackage{ae,aecompl} +\usepackage{mathpazo,courier,euler} +\usepackage[scaled=.95]{helvet} + +\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} +\date{} + +% DOCUMENT STARTS +\begin{document} + +\begin{frame} + \maketitle +\end{frame} + +\begin{frame}[fragile] + \frametitle{Outline} + \begin{itemize} + \item + \end{itemize} +\end{frame} + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% All other slides here. %% +%% The same slides will be used in a classroom setting. %% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +\begin{frame}[fragile] + \frametitle{Summary} + \begin{itemize} + \item + \end{itemize} +\end{frame} + +\begin{frame} + \frametitle{Thank you!} + \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{frame} + +\end{document} -- cgit