--- a/additional_ipython.rst	Thu Sep 23 16:57:44 2010 +0530
+++ b/additional_ipython.rst	Wed Oct 06 13:20:54 2010 +0530
@@ -1,3 +1,14 @@
+.. Author              : Nishanth
+   Internal Reviewer 1 : 
+   Internal Reviewer 2 : 
+   External Reviewer   :
+
+.. Prerequisites: Embellinshing plots
+
+Script
+======
+
+
 Hello friends and welcome to the tutorial on Additional Features of IPython
 
 {{{ Show the slide containing title }}}
@@ -165,6 +176,14 @@
 sin, plot, pi and show which are not available in script, are taken from the
 interpreter and used to run the script.
 
+{{{ Pause here and try out the following exercises }}}
+
+%% 4 %% Run the script without using the -i option. Do you find any difference?
+
+{{{ continue from paused state }}}
+
+We see that it raises nameerror saying the name linspace is not found.
+
 {{{ Show summary slide }}}
 
 This brings us to the end of the tutorial.
@@ -183,7 +202,121 @@
 Hope you have enjoyed and found it useful.
 Thankyou
  
-.. Author              : Nishanth
-   Internal Reviewer 1 : 
-   Internal Reviewer 2 : 
-   External Reviewer   :
+Questions
+=========
+
+ 1. How do you retrieve the recent 5 commands
+
+    a. ``%hist``
+    #. ``%hist -5``
+    #. ``%hist 5``
+    #. ``%hist 5-10``
+
+    Answer: ``%hist 5``
+    
+ 2. If there were 20 commands typed and ``%hist`` is used. How many commands 
+    will be displayed.
+
+    a. 10
+    #. 20
+    #. 21
+    #. 19
+
+    Answer: 21
+
+ 3. is ``%hist`` considered as a command
+
+    a. True
+    #. False
+
+    Answer: True
+
+ 4. how do you retreive the commands from 20 to 50 (inclusive of 20 and 50)
+
+    a. ``%hist 20 50``
+    #. ``%hist 19 50``
+    #. ``%hist 19 51``
+    #. ``%hist 21 50``
+
+    Answer: ``%hist 20 50``
+
+ 5. What does the ``%hist 2 5 7`` command do
+
+    a. lists the second, fifth and seventh commands
+    #. lists the commands from 2 to 5 and the seventh command
+    #. raises an error
+    #. lists the commands 2 to 7
+
+    Answer: raises an error
+
+ 6. How many commands are displayed when lot of coomands were typed and 
+    ``%hist`` is used.
+
+    a. 20
+    #. 10
+    #. 50
+    #. 40
+
+    Answer: 40
+
+ 7. How do you save the lines 2 3 4 5 7 9 10 11
+
+    a. ``%save filepath 2-5 7 9-11``
+    #. ``%save filepath 2-11``
+    #. ``%save filepath``
+    #. ``%save 2-5 7 9 10 11``
+
+    Answer: ``%save filepath 2-5 7 9-11``
+
+ 8. You are working in /home/user. Where is the file saved when you do
+    ``%save hello.py 1-3`` 
+
+    a. /home/user/hello.py
+    #. /hello.py
+    #. /home/hello.py
+    #. /home/user/ipython/hello.py
+
+    Answer: /home/user/hello.py
+
+ 9. Which lines are saved by the command ``%save filepath 2-5 7 1`` and in
+    which order
+
+    a. 2 3 4 5 7 1
+    #. 1 2 3 4 5 6 7
+    #. 2 5 7 1
+    #. 1 2 5 7
+
+ 10. What happens when ``%save filepath line_numbers`` is used and a file
+     already exists in that path.
+
+    a. It is overwritten
+    #. The commands are added to the file
+    #. It raises an error
+    #. A prompt to confirm overwriting is displayed 
+
+    Answer: A prompt to confirm overwriting is displayed 
+
+ 11. Read through the documentation of ``%hist`` and find its alternative name
+
+    Answer: ``%history``
+
+ 12. Are ``%run /home/user/saved.py`` and ``%run /home/user/saved`` the same
+
+   a. Yes
+   #. No
+
+   Answer: Yes
+
+ 13. The file hello.py contains only one command ``x = x + 1``. What happens
+     when you do ``%run hello.py``
+
+    Answer: Raises a nameerror
+
+  14. The file hello.py contains only one command ``x = x + 1``. If value of x
+      is 5 and what does ``%run -i hello.py`` do.
+
+    a. raises an error
+    #. increments value of x by 1
+    #. Does nothing
+    
+    Answer: increments the value of x by 1