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authorPuneeth Chaganti2010-12-01 16:51:35 +0530
committerPuneeth Chaganti2010-12-01 16:51:35 +0530
commitf3a34dfb4e879f3eb7274704f44546aac4add88f (patch)
tree1cb0a8cc5dbd5ee2b374350915ed2addfa0fb447 /advanced-features-functions
parent347866ed0d29db61ee062563b1e1616cfb85588c (diff)
downloadst-scripts-f3a34dfb4e879f3eb7274704f44546aac4add88f.tar.gz
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Renamed all LOs to match with their names in progress.org.
Diffstat (limited to 'advanced-features-functions')
-rw-r--r--advanced-features-functions/quickref.tex8
-rw-r--r--advanced-features-functions/script.rst277
-rw-r--r--advanced-features-functions/slides.org86
-rw-r--r--advanced-features-functions/slides.tex134
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diff --git a/advanced-features-functions/quickref.tex b/advanced-features-functions/quickref.tex
deleted file mode 100644
index 160370e..0000000
--- a/advanced-features-functions/quickref.tex
+++ /dev/null
@@ -1,8 +0,0 @@
-\textbf{Advanced features of functions}
-
-Arguments of functions can have default arguments.
-
-All arguments with default arguments are at the end of the definition.
-
-Functions can be called with keyword arguments. All the keyword
-arguments should be at the end of the argument list.
diff --git a/advanced-features-functions/script.rst b/advanced-features-functions/script.rst
deleted file mode 100644
index a420721..0000000
--- a/advanced-features-functions/script.rst
+++ /dev/null
@@ -1,277 +0,0 @@
-.. Objectives
-.. ----------
-
-.. At the end of this tutorial, you will be able to
-
-.. 1. Assign default values to arguments, when defining functions
-.. 2. Define and call functions with keyword arguments.
-.. 3. Also, you will get a glimpse of the plethora of functions
-.. available, in Python standard library and the scientific computing
-.. libraries.
-
-
-.. Prerequisites
-.. -------------
-
-.. 1. getting started with ipython
-.. #. getting started with functions
-
-.. Author : Puneeth
- Internal Reviewer : Anoop Jacob Thomas<anoop@fossee.in>
- External Reviewer :
- Language Reviewer : Bhanukiran
- Checklist OK? : <put date stamp here, if OK> [2010-10-05]
-
-Script
-------
-
-{{{ Show the slide containing title }}}
-
-Welcome to the tutorial on advanced feature of functions.
-
-{{{ Show the outline slide }}}
-
-In this tutorial we shall be looking at specifying default arguments
-to functions when defining them and calling functions using keyword
-arguments. We shall also, look at some of the built-in functions
-available in the standard library of Python and the scientific
-computing libraries.
-
-{{{ switch to terminal }}}
-
-We have an ``ipython`` terminal open, which we shall be using through
-out this session.
-
-Let's use the ``round`` function as an example to understand what a
-default value of an argument means. Let's type the following
-expressions in the terminal.
-
-::
-
- round(2.484)
-
- round(2.484, 2)
-
-Both the first expression and the second are calls to the ``round``
-function, but the first calls it with only one argument and the second
-calls it with two arguments. By observing the output, we can guess
-that the first one is equivalent to call with the second argument
-being 0. 0 is the default value of the argument.
-
-.. #[[Anoop: It will be good if we show ``round??`` and tell them the
- optional argument ndigits, or it could be given as an
- exercise(solved) asking them to find the name of the argument in
- the function round]]
-
-{{{ show a slide with examples of functions showing default values }}}
-
-.. #[[Anoop: I think the slide is not there]]
-
-::
-
- s.strip() # strips on spaces.
- s.strip('@') # strips the string of '@' symbols.
-
- plot(x, y) # plots with x vs. y using default line style.
- plot(x, y, 'o') # plots x vs. y with circle markers.
-
- linspace(0, 2*pi, 100) # returns 100 points between 0 and 2pi
- linspace(0, 2*pi) # returns 50 points between 0 and 2pi
-
-.. #[punch: all above content goes on to a slide]
-
-{{{ switch back to ipython }}}
-
-Let's now define a simple function that uses default arguments. We
-define a simple function that prints a welcome message to a person,
-given a greeting and his/her name.
-
-::
-
- def welcome(greet, name="World"):
- print greet, name
-
-Let us first call the function with two arguments, one for ``greet``
-and other for ``name``.
-
-::
-
- welcome("Hi", "Guido")
-
-We get the expected welcome message, "Hi Guido".
-
-Now let us call the function with just one argument "Hello".
-::
-
- welcome("Hello")
-
-"Hello" is treated as the ``greet`` and we get "Hello World" as
-the output. "World" is the default value for the argument ``name``.
-
-Following is an (are) exercise(s) that you must do.
-
-{{{ switch to next slide, containing problem statement of
- question 1 }}}
-
-%%1%% Redefine the function ``welcome``, by interchanging it's
-arguments. Place the ``name`` argument with it's default value of
-"World" before the ``greet`` argument.
-
-Please, pause the video here. Do the exercise and then continue.
-
-{{{ switch to next slide, containing the solution to problem 1 }}}
-
-::
-
- def welcome(name="World", greet):
- print greet, name
-
-We get an error that reads ``SyntaxError: non-default argument follows
-default argument``. When defining a function all the argument with
-default values should come at the end.
-
-.. #[[Anoop: In the slide, "when defining a function all the default
- arguments must be defined at the end" has to be emphasized"]]
-
-Following is an exercise that you must do.
-
-{{{ switch to next slide, containing the problem statement of
- question 2 }}}
-
-%%2%% See the definition of linspace using ``?`` and observe how all
-the arguments with default values are towards the end.
-
-Please, pause the video here. Do the exercise and then continue.
-
-{{{ switch to next slide, containing solution to problem 2 }}}
-
-::
-
- linspace?
-
-Following is an exercise that you must do.
-
-{{{ switch to next slide, problem statement }}}
-
-%%3%% Redefine the function ``welcome`` with a default value of
-"Hello" to the ``greet`` argument. Then, call the function without any
-arguments.
-
-Please, pause the video here. Do the exercise and then continue.
-
-{{{ switch to next slide, solution }}}
-
-::
-
- def welcome(greet="Hello", name="World"):
- print greet, name
-
-
- welcome()
-
-
-Let us now learn what keyword arguments or named arguments are. We
-shall refer to them as keyword arguments, henceforth.
-
-{{{ show a slide with examples using keyword arguments. }}}
-
-.. #[[Anoop: slide is missing]]
-
-::
-
- legend(['sin(2y)'], loc = 'center')
-
- plot(y, sin(y), 'g', linewidth = 2)
-
- annotate('local max', xy = (1.5, 1))
-
- pie(science.values(), labels = science.keys())
-
-When you are calling functions in Python, you don't need to remember
-the order in which to pass the arguments. Instead, you can use the
-name of the argument to pass it a value. This slide shows a few
-function calls that use keyword arguments. ``loc``, ``linewidth``,
-``xy`` and ``labels`` are being called with keyword arguments.
-
-{{{ switch to ipython terminal }}}
-
-Let us try and understand this better using the ``welcome`` function
-that we have been using all along. Let us call it in different ways
-and observe the output to see how keyword arguments work.
-
-::
-
- welcome()
-
- welcome("Hello", "James")
-
- welcome("Hi", name="Guido")
-
-When no keyword is specified, the arguments are allotted based on
-their position. So, "Hi" is the value of the argument ``greet`` and
-name is passed the value "Guido".
-::
-
- welcome(name="Guido", greet="Hey! ")
-
-When keyword arguments are used, the arguments can be called in any
-order.
-
-::
-
- welcome(name="Guido", "Hey")
-
-This call returns an error that reads, ``non keyword arg after keyword
-arg``. Python expects all the keyword to be present towards the end.
-
-That brings us to the end of what we wanted to learn about ``keyword``
-arguments.
-
-{{{ switch to a slide showing variety of functions with uses }}}
-
-.. #[[Anoop: slide missing]]
-
-Before defining a function of your own, make sure that you check the
-standard library, for a similar function. Python is popularly called a
-"Batteries included" language, for the huge library that comes along
-with it.
-
-::
-
- Math functions - abs, sin, ....
-
-.. #[punch: Need to decide, exactly what to put here. Reviewer comments
-.. welcome.]
-
-{{{ switch to slide showing classes of functions in pylab, scipy }}}
-
-.. #[[Anoop: slide missing]]
-
-Apart from the standard library there are other libraries like ``pylab``,
-``scipy``, etc which have a huge collection of functions for scientific
-purposes.
-::
-
- pylab
- plot, bar, contour, boxplot, errorbar, log, polar, quiver, semilog
-
- scipy (modules)
- fftpack, stats, linalg, ndimage, signal, optimize, integrate
-
-{{{ Show summary slide }}}
-
-.. #[[Anoop: add range of functions available in python standard
- library]]
-
-That brings us to the end of this tutorial. In this tutorial we have
-learnt how to use functions with default values and keyword
-arguments. We also looked at the range of functions available in the
-Python standard library and the Scientific Computing related
-packages.
-
-{{{ Show the "sponsored by FOSSEE" slide }}}
-
-This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India
-
-Hope you have enjoyed and found it useful.
-Thank you!
diff --git a/advanced-features-functions/slides.org b/advanced-features-functions/slides.org
deleted file mode 100644
index fb66b6f..0000000
--- a/advanced-features-functions/slides.org
+++ /dev/null
@@ -1,86 +0,0 @@
-#+LaTeX_CLASS: beamer
-#+LaTeX_CLASS_OPTIONS: [presentation]
-#+BEAMER_FRAME_LEVEL: 1
-
-#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
-#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra)
-#+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
-
-#+LaTeX_CLASS: beamer
-#+LaTeX_CLASS_OPTIONS: [presentation]
-
-#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl}
-#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
-
-#+LaTeX_HEADER: \usepackage{listings}
-
-#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,
-#+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
-#+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries}
-
-#+TITLE: Advanced features of functions
-#+AUTHOR: FOSSEE
-#+EMAIL:
-#+DATE:
-
-#+DESCRIPTION:
-#+KEYWORDS:
-#+LANGUAGE: en
-#+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
-#+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc
-
-* Outline
- - Assigning default values to arguments
- - Calling functions using Keyword arguments
- - functions in standard library
-* Question 1
- Redefine the function ~welcome~, by interchanging it's
- arguments. Place the ~name~ argument with it's default value of
- "World" before the ~greet~ argument.
-* Solution 1
- #+begin_src python
- def welcome(name="World", greet):
- print greet, name
- #+end_src
- We get an error that reads ~SyntaxError: non-default argument
- follows default argument~. When defining a function all the
- argument with default values should come at the end.
-
-* Question 2
- See the definition of linspace using ~?~ and observe how all the
- arguments with default values are towards the end.
-* Solution 2
- #+begin_src python
- linspace?
- #+end_src
-* Question 3
- Redefine the function ~welcome~ with a default value of
- "Hello" to the ~greet~ argument. Then, call the function without any
- arguments.
-* Solution 3
- #+begin_src python
- def welcome(greet="Hello", name="World"):
- print greet, name
-
- welcome()
- #+end_src
-* Summary
- You should now be able to --
- + define functions with default arguments
- + call functions using keyword arguments
-* Thank you!
-#+begin_latex
- \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_latex
-
-
diff --git a/advanced-features-functions/slides.tex b/advanced-features-functions/slides.tex
deleted file mode 100644
index 9e1d66f..0000000
--- a/advanced-features-functions/slides.tex
+++ /dev/null
@@ -1,134 +0,0 @@
-% Created 2010-10-28 Thu 11:37
-\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{Advanced features of functions}
-\author{FOSSEE}
-\date{}
-
-\usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
-\begin{document}
-
-\maketitle
-
-
-
-
-
-
-
-
-
-\begin{frame}
-\frametitle{Outline}
-\label{sec-1}
-
-\begin{itemize}
-\item Assigning default values to arguments
-\item Calling functions using Keyword arguments
-\item functions in standard library
-\end{itemize}
-\end{frame}
-\begin{frame}
-\frametitle{Question 1}
-\label{sec-2}
-
- Redefine the function \texttt{welcome}, by interchanging it's
- arguments. Place the \texttt{name} argument with it's default value of
- ``World'' before the \texttt{greet} argument.
-\end{frame}
-\begin{frame}[fragile]
-\frametitle{Solution 1}
-\label{sec-3}
-
-\begin{verbatim}
-def welcome(name="World", greet):
- print greet, name
-\end{verbatim}
- We get an error that reads \texttt{SyntaxError: non-default argument follows default argument}. When defining a function all the
- argument with default values should come at the end.
-\end{frame}
-\begin{frame}
-\frametitle{Question 2}
-\label{sec-4}
-
- See the definition of linspace using \texttt{?} and observe how all the
- arguments with default values are towards the end.
-\end{frame}
-\begin{frame}[fragile]
-\frametitle{Solution 2}
-\label{sec-5}
-
-\begin{verbatim}
-linspace?
-\end{verbatim}
-\end{frame}
-\begin{frame}
-\frametitle{Question 3}
-\label{sec-6}
-
- Redefine the function \texttt{welcome} with a default value of
- ``Hello'' to the \texttt{greet} argument. Then, call the function without any
- arguments.
-\end{frame}
-\begin{frame}[fragile]
-\frametitle{Solution 3}
-\label{sec-7}
-
-\begin{verbatim}
-def welcome(greet="Hello", name="World"):
- print greet, name
-
-welcome()
-\end{verbatim}
-\end{frame}
-\begin{frame}
-\frametitle{Summary}
-\label{sec-8}
-
- You should now be able to --
-\begin{itemize}
-\item define functions with default arguments
-\item call functions using keyword arguments
-\end{itemize}
-\end{frame}
-\begin{frame}
-\frametitle{Thank you!}
-\label{sec-9}
-
- \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}