Major changes to script & slides of 'advanced features of functions'.

1 files changed, 115 insertions, 37 deletions

diff --git a/advanced_features_of_functions/slides.org b/advanced_features_of_functions/slides.org
index fb66b6f..947b306 100644
--- a/advanced_features_of_functions/slides.org
+++ b/advanced_features_of_functions/slides.org
@@ -18,7 +18,7 @@
 #+LaTeX_HEADER:  commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
 #+LaTeX_HEADER:  showstringspaces=false, keywordstyle=\color{blue}\bfseries}
 
-#+TITLE:    Advanced features of functions
+#+TITLE:    
 #+AUTHOR:    FOSSEE
 #+EMAIL:     
 #+DATE:    
@@ -29,58 +29,136 @@
 #+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
+* 
+#+begin_latex
+\begin{center}
+\vspace{12pt}
+\textcolor{blue}{\huge Advanced features of Functions}
+\end{center}
+\vspace{18pt}
+\begin{center}
+\vspace{10pt}
+\includegraphics[scale=0.95]{../images/fossee-logo.png}\\
+\vspace{5pt}
+\scriptsize Developed by FOSSEE Team, IIT-Bombay. \\ 
+\scriptsize Funded by National Mission on Education through ICT\\
+\scriptsize  MHRD,Govt. of India\\
+\includegraphics[scale=0.30]{../images/iitb-logo.png}\\
+\end{center}
+#+end_latex
+* Objectives
+ At the end of this tutorial, you will be able to, 
+
+ - Assign default values to arguments, when defining functions.
+ - Define and call functions with keyword arguments. 
+ - Learn some of the built-in functions available in Python standard 
+    library and the scientific computing libraries.
+* Pre-requisite
+Spoken tutorial on -
+- Getting started with functions
+* Functions
+#+begin_src Python
+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
+#+end_src
+* Exercise 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
+  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
+* Exercise 2
+ - See the definition of linspace using ~?~ and make a note of 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
+* Exercise 3
+ - Redefine the function ~welcome~ with a default value of
+  "Hello" to the ~greet~ argument. 
+  Then, call the function without any arguments. 
+* Keyword arguments examples
+#+begin_src Python
+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())
+#+end_src
+* Built-in functions
+#+begin_src Python
+  Math functions - abs, sin, ....
+ 
+  Plot functions - plot, bar, pie ...
+ 
+  Boolean functions - and, or, not ...
+#+end_src
+* Classes of functions
+#+begin_src Python
+- pylab
+  - plot, bar, contour, boxplot, errorbar, log, polar, quiver, semilog
+
+- scipy (modules)
+  - fftpack, stats, linalg, ndimage, signal, optimize, integrate
+#+end_src
 * Summary
-  You should now be able to --
-  + define functions with default arguments
-  + call functions using keyword arguments
-* Thank you!
+ In this tutorial, we have learnt to, 
+
+ - Define functions with default arguments.
+ - Call functions using keyword arguments.
+ - Use the range of functions available in the Python standard library 
+   and the Scientific Computing related packages. 
+
+* Evaluation
+1. All arguments of a function cannot have default values. 
+   - True or False? 
+
+2. The following is a valid function definition. True or False? 
+#+begin_src Python
+def seperator(count=40, char, show=False):
+     if show:
+          print char * count
+     return char * count
+#+end_src
+3. When calling a function, 
+
+   - the arguments should always be in the order in which they are defined.
+   - only keyword arguments can be in any order, but should be called
+     at the beginning.
+   - only keyword arguments can be in any order, but should be called
+     at the end.
+* Solutions
+1. False
+
+2. False
+
+3. only keyword arguments can be in any order, 
+   but should be called at the end
+* 
 #+begin_latex
   \begin{block}{}
   \begin{center}
-  This spoken tutorial has been produced by the
-  \textcolor{blue}{FOSSEE} team, which is funded by the 
+  \textcolor{blue}{\Large THANK YOU!} 
   \end{center}
+  \end{block}
+\begin{block}{}
   \begin{center}
-    \textcolor{blue}{National Mission on Education through \\
-      Information \& Communication Technology \\ 
-      MHRD, Govt. of India}.
+    For more Information, visit our website\\
+    \url{http://fossee.in/}
   \end{center}  
   \end{block}
 #+end_latex
 
-