Changed structure of my scripts.

3 files changed, 238 insertions, 0 deletions

diff --git a/loops/quickref.tex b/loops/quickref.tex
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+++ b/loops/quickref.tex
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+Creating a linear array:\\
+{\ex \lstinline|    x = linspace(0, 2*pi, 50)|}
+
+Plotting two variables:\\
+{\ex \lstinline|    plot(x, sin(x))|}
+
+Plotting two lists of equal length x, y:\\
+{\ex \lstinline|    plot(x, y)|}
diff --git a/loops/script.rst b/loops/script.rst
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+++ b/loops/script.rst
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+========
+ Script
+========
+
+{{{ show the welcome slide }}}
+
+Welcome this tutorial on loops in Python. 
+
+{{{ show the outline slide }}}
+
+In this tutorial, we shall look at ``while`` and ``for`` loops. We
+shall then look at the ``break``, ``continue`` and ``pass`` keywords
+and how to use them. 
+
+{{{ switch to the ipython terminal }}}
+
+We have an ``ipython`` terminal, that we shall use through out this
+tutorial. 
+
+We shall first begin with the ``while`` loop. The ``while`` loop is
+used for repeated execution as long as a condition is ``True``. 
+
+Let us print the squares of all the odd numbers less than 10, using
+the ``while`` loop.
+
+::
+
+  i = 1
+
+  while i<10:
+      print i*i
+      i += 2
+
+This loop prints the squares of the odd numbers below 10. 
+
+The ``while`` loop, repeatedly checks if the condition is true and
+executes the block of code within the loop, if it is. As with any
+other block in Python, the code within the ``while`` block is indented
+to the right by 4 spaces. 
+
+E%% %% Pause the video here and write a ``while`` loop to print the
+squares of all the even numbers below 10. Then, return to the video.
+
+::
+
+  i = 2
+
+  while i<10:
+      print i*i
+      i += 2
+
+Let us now solve the same problem of printing the squares of all odd
+numbers less than 10, using the ``for`` loop. As we know, the ``for``
+loop iterates over a list or any other sequential data type. So, we
+use the ``range`` function to get a list of odd numbers below 10, and
+then iterate over it and print the required stuff. 
+
+::
+
+  for n in range(1, 10, 2):
+      print n*n
+
+E%% %% Pause the video here and write a ``for`` loop to print the
+squares of all the even numbers below 10. Then, return to the video. 
+
+::
+
+  for n in range(2, 10, 2):
+      print n*n
+
+Let us now look at how to use the keywords, ``pass``, ``break`` and
+``continue``.
+
+As we already know, ``pass`` is just a syntactic filler. It is used
+for the sake of completion of blocks, that do not have any code within
+them. 
+
+::
+
+  for n in range(2, 10, 2):
+      pass
+
+``break`` is used to break out of the innermost loop. The ``while``
+loop to print the squares of all the odd numbers below 10, can be
+modified using the ``break`` statement, as follows
+::
+
+  i = 1
+
+  while True:
+      print i*i
+      i += 2
+      if i<10:
+          break
+
+``continue`` is used to skip execution of the rest of the loop on this
+iteration and continue to the end of this iteration. 
+
+Say, we wish to print the squares of all the odd numbers below 10,
+which are not multiples of 3, we would modify the for loop as follows.
+::
+
+  for n in range(1, 10, 2):
+      if n%3 == 0:
+          continue      
+      print n*n
+  
+
+E%% %%Pause the video here and using the ``continue`` keyword modify
+the ``for`` loop to print the squares of even numbers below 10, to
+print the squares of only multiples of 4. (Do not modify the range
+function call.) Then, resume the video. 
+::
+
+  for n in range(2, 10, 2):
+      if n%4:
+          continue      
+      print n*n
+
+That brings us to the end of this tutorial. In this tutorial, we have
+learnt about looping structures in Python and the use of the keywords
+``pass``, ``break`` and ``continue``. 
+
+Thank You!
diff --git a/loops/slides.tex b/loops/slides.tex
new file mode 100644
index 0000000..df1462c
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+++ b/loops/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<presentation>
+{
+  \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}