Modified the scripts and slides in module 2.

3 files changed, 32 insertions, 22 deletions

diff --git a/getting_started_with_strings/script.rst b/getting_started_with_strings/script.rst
index 6d31bee..4dd1930 100644
--- a/getting_started_with_strings/script.rst
+++ b/getting_started_with_strings/script.rst
@@ -97,8 +97,8 @@ By having multiple control characters, we avoid the need for
 escaping characters -- in this case the apostrophe. 
 
 Let us now move on to the triple quoted strings. Let us define multi-line 
-strings without using any escaping. Everything within the triple quotes is a 
-single string no matter how many lines it extends
+strings without using any escaping. Everything within the triple quotes 
+is a single string no matter how many lines it extends
 
 .. L6
 ::
@@ -119,10 +119,10 @@ We can assign this string to any variable
 .. R8
 
 Now 'a' is a string variable. String is a collection of characters. In
-addition string is an immutable collection which means that the string cannot 
-be modified after it is created.So all the operations that are applicable to any
-other immutable collection in Python, works on strings as well.
-Hence we can add two strings
+addition string is an immutable collection which means that the string 
+cannot be modified after it is created.So all the operations that are 
+applicable to any other immutable collection in Python, works on strings 
+as well.Hence we can add two strings
 
 .. L8
 ::
@@ -159,7 +159,7 @@ It gives another string in which the original string 'Hello' is repeated
 
 .. L12
 
-{{{ Show slide with Question 1 }}}
+{{{ Show slide with exercise 1 }}}
 
 .. R12
 
@@ -190,9 +190,9 @@ using the subscripts
 
 .. R14
 
-a[0] gives us the first character in the string. The indexing starts from 0
-for the first character and goes up to (n-1) for the last character,where 'n' is
-the total number of characters in a string. 
+a[0] gives us the first character in the string. The indexing starts from 
+0 for the first character and goes up to (n-1) for the last character,
+where 'n' is the total number of characters in a string. 
 We can access the strings from the end using negative indices
 
 .. L15
@@ -208,13 +208,14 @@ a[-2] gives us second element from the end of the string.
 
 .. L16
 
-{{{ Show slide with Question 2 }}}
+{{{ Show slide with exercise 2 }}}
 
 .. R16
 
 Pause the video here, try out the following exercise and resume the video.
 
-Given a string, ``s = "Hello World"``, what is the output of::
+Given a string, ``s = "Hello World"``, what is the output of
+::
 
     s[-5] 
     s[-10]
@@ -247,8 +248,8 @@ s[-10] gives us 'e' and
 
 .. R19
 
-s[-15] gives us an ``IndexError``, as should be expected, since the string
-given to us is only 11 characters long. 
+s[-15] gives us an ``IndexError``, as should be expected, since the 
+string given to us is only 11 characters long. 
 
 .. R20
 
@@ -278,7 +279,8 @@ into a single string based on the specified separator.
 
 .. R22
 
-Let's revise quickly what we have learnt today.In this tutorial we have learnt to,
+Let's revise quickly what we have learnt today.In this tutorial we have 
+learnt to,
 
   1. Define strings in differnt ways.
   #. Concatenate strings by performing addition.
@@ -330,6 +332,6 @@ And the answers,
 
 .. R25
 
-Hope you have enjoyed and found it useful.
+Hope you have enjoyed this tutorial and found it useful.
 Thank you!
 
diff --git a/getting_started_with_strings/slides.org b/getting_started_with_strings/slides.org
index cd95474..e94a9b1 100644
--- a/getting_started_with_strings/slides.org
+++ b/getting_started_with_strings/slides.org
@@ -53,10 +53,10 @@
   - Print a string repeatedly. 
   - Access individual elements of the string.
   - Learn immutability of strings.
-* Question 1
+* Exercise 1
   Obtain the string ~%% -------------------- %%~ (20 hyphens) without
   typing out all the twenty hyphens.
-* Question 2
+* Exercise 2
   Given a string, ~s~ which is ~Hello World~ , what is the output of::
   #+begin_src python
     s[-5] 
@@ -74,9 +74,11 @@
 * Evaluation
   1. Write code to assign s, the string ``' is called the apostrophe``
 
+
   2. Given strings s and t, ``s = "Hello"`` and ``t = "World"`` and an
    integer r, ``r = 2``. What is the output of s * r + s * t?
 
+
   3. How will you change s='hello' to s='Hello'.
 
     - s[ 0 ]= H
@@ -85,8 +87,10 @@
 * Solutions
   1. s = "` is called the apostrophe" 
 
+
   2. HelloHelloWorldWorld
      
+
   3. Strings are immutable,hence cannot be manipulated.  
 
 * 
diff --git a/getting_started_with_strings/slides.tex b/getting_started_with_strings/slides.tex
index e38ca13..7a899d9 100644
--- a/getting_started_with_strings/slides.tex
+++ b/getting_started_with_strings/slides.tex
@@ -1,4 +1,4 @@
-% Created 2011-05-16 Mon 12:57
+% Created 2011-05-24 Tue 11:31
 \documentclass[presentation]{beamer}
 \usepackage[latin1]{inputenc}
 \usepackage[T1]{fontenc}
@@ -72,14 +72,14 @@ showstringspaces=false, keywordstyle=\color{blue}\bfseries}
 \end{itemize}
 \end{frame}
 \begin{frame}
-\frametitle{Question 1}
+\frametitle{Exercise 1}
 \label{sec-3}
 
   Obtain the string \verb~%% -------------------- %%~ (20 hyphens) without
   typing out all the twenty hyphens.
 \end{frame}
 \begin{frame}[fragile]
-\frametitle{Question 2}
+\frametitle{Exercise 2}
 \label{sec-4}
 
   Given a string, \verb~s~ which is \verb~Hello World~ , what is the output of::
@@ -101,7 +101,7 @@ s[-15]
 \item To concatenate strings by performing addition.
 \item To repeat a string `n' number of times by doing multiplication.
 \item To access individual elements of the string by using their subscripts.
-\item About the immutability of strings.
+\item Use the concept of immutability of strings.
 \end{itemize}
 \end{frame}
 \begin{frame}
@@ -111,8 +111,10 @@ s[-15]
 
 \begin{enumerate}
 \item Write code to assign s, the string ``' is called the apostrophe``
+\vspace{8pt}
 \item Given strings s and t, ``s = ``Hello''`` and ``t = ``World''`` and an
    integer r, ``r = 2``. What is the output of s * r + s * t?
+\vspace{8pt}   
 \item How will you change s='hello' to s='Hello'.
 \begin{itemize}
 \item s[ 0 ]= H
@@ -128,7 +130,9 @@ s[-15]
 
 \begin{enumerate}
 \item s = ``` is called the apostrophe''
+\vspace{8pt}
 \item HelloHelloWorldWorld
+\vspace{8pt}
 \item Strings are immutable,hence cannot be manipulated.
 \end{enumerate}
 \end{frame}