diff -r 88a01948450d -r d33698326409 getting-started-with-for/slides.tex --- a/getting-started-with-for/slides.tex Wed Nov 17 23:24:57 2010 +0530 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,285 +0,0 @@ -% Created 2010-10-12 Tue 12:55 -\documentclass[presentation]{beamer} -\usepackage[latin1]{inputenc} -\usepackage[T1]{fontenc} -\usepackage{fixltx2e} -\usepackage{graphicx} -\usepackage{longtable} -\usepackage{float} -\usepackage{wrapfig} -\usepackage{soul} -\usepackage{t1enc} -\usepackage{textcomp} -\usepackage{marvosym} -\usepackage{wasysym} -\usepackage{latexsym} -\usepackage{amssymb} -\usepackage{hyperref} -\tolerance=1000 -\usepackage[english]{babel} \usepackage{ae,aecompl} -\usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet} -\usepackage{listings} -\lstset{language=Python, basicstyle=\ttfamily\bfseries, -commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, -showstringspaces=false, keywordstyle=\color{blue}\bfseries} -\providecommand{\alert}[1]{\textbf{#1}} - -\title{Getting started with for} -\author{FOSSEE} -\date{} - -\usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} -\begin{document} - -\maketitle - - - - - - - - - -\begin{frame} -\frametitle{Outline} -\label{sec-1} - -\begin{itemize} -\item \texttt{for} loop in Python. -\item Blocks of code in Python. - -\begin{itemize} -\item Indentation -\end{itemize} - -\end{itemize} -\end{frame} -\begin{frame}[fragile] -\frametitle{Whitespace in Python} -\label{sec-2} - -\begin{itemize} -\item Whitespace is significant - -\begin{itemize} -\item blocks are visually separated -\end{itemize} - -\item Blocks are indented using 4 spaces -\begin{verbatim} - Block A - Block A - Block B - Block B - Block A -\end{verbatim} - - \texttt{Block B} is an inner block and is indented using 4 spaces -\end{itemize} -\end{frame} -\begin{frame}[fragile] -\frametitle{Exercise 1} -\label{sec-3} - - Write a \texttt{for} loop which iterates through a list of numbers and find - the square root of each number. -\begin{verbatim} - -\end{verbatim} - - The numbers are, -\begin{verbatim} - 1369, 7225, 3364, 7056, 5625, 729, 7056, - 576, 2916 -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Solution 1} -\label{sec-4} - -\begin{itemize} -\item Open text editor and type the following code -\end{itemize} - -\begin{verbatim} -numbers = [1369, 7225, 3364, 7056, 5625, 729, 7056, - 576, 2916] - -for each in numbers: - print "Square root of", each, "is", sqrt(each) - -print "This is not in for loop!" -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Save \& run script} -\label{sec-5} - -\begin{itemize} -\item Save the script as \texttt{list\_roots.py} -\item Run in \texttt{ipython} interpreter as, -\begin{verbatim} - In []: %run -i list_roots.py -\end{verbatim} - -\end{itemize} -\end{frame} -\begin{frame}[fragile] -\frametitle{Exercise 2} -\label{sec-6} - - From the given numbers make a list of perfect squares and a list of those which are not. -\begin{verbatim} - -\end{verbatim} - - The numbers are, -\begin{verbatim} - 7225, 3268, 3364, 2966, 7056, 5625, 729, 5547, - 7056, 576, 2916 -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Exercise 3 (indentation in \texttt{ipython})} -\label{sec-7} - - Print the square root of numbers in the list. -\begin{verbatim} - -\end{verbatim} - - Numbers are, -\begin{verbatim} - 7225, 3268, 3364, 2966, 7056, 5625, 729, 5547, - 7056, 576, 2916 -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Indentation in \texttt{ipython}} -\label{sec-8} - -\begin{verbatim} - In []: numbers = [1369, 7225, 3364, 7056, 5625, - ...: 729, 7056, 576, 2916] -\end{verbatim} - - -\begin{verbatim} - In []: for each in numbers: - ...: -\end{verbatim} - - Note the four spaces here -\begin{verbatim} - - - - - - -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Indentation in \texttt{ipython} (cont'd)} -\label{sec-9} - -\begin{verbatim} - In []: numbers = [1369, 7225, 3364, 7056, 5625, - ...: 729, 7056, 576, 2916] - In []: for each in numbers: - ...: -\end{verbatim} - - Note the four spaces here -\begin{verbatim} - -\end{verbatim} - - Now type the rest of the code -\begin{verbatim} - ...: print "Square root of", each, - ...: print "is", sqrt(each) - ...: - ...: -\end{verbatim} -\end{frame} -\begin{frame}[fragile] -\frametitle{Indentation in \texttt{python} interpreter} -\label{sec-10} - - Find out the cube of all the numbers from 1 to 10. -\begin{verbatim} - -\end{verbatim} - - \emph{do it in the python interpreter} -\end{frame} -\begin{frame}[fragile] -\frametitle{Indentation in \texttt{python} interpreter (cont'd)} -\label{sec-11} - -\begin{verbatim} ->>> for i in range(1, 11): -... print i, "cube is", i**3 -... -\end{verbatim} -\end{frame} -\begin{frame} -\frametitle{\texttt{range()} function} -\label{sec-12} - -\begin{itemize} -\item in built function in Python -\item generates a list of integers - -\begin{itemize} -\item \emph{syntax:} range([start,] stop[, step]) -\item \emph{example:} - -\begin{itemize} -\item range(1, 20) - \emph{generates integers from 1 to 20} -\item range(20) - \emph{generates integers from 0 to 20} -\end{itemize} - -\end{itemize} - -\end{itemize} -\end{frame} -\begin{frame} -\frametitle{Exercise 4} -\label{sec-13} - - Print all the odd numbers from 1 to 50. -\end{frame} -\begin{frame} -\frametitle{Summary} -\label{sec-14} - -\begin{itemize} -\item blocks in \texttt{python} -\item indentation -\item blocks in \texttt{ipython} interpreter -\item \texttt{for} loop -\item iterating over list using \texttt{for} loop -\item \texttt{range()} function -\end{itemize} -\end{frame} -\begin{frame} -\frametitle{Thank you!} -\label{sec-15} - - \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}