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#+TITLE:    
#+AUTHOR:    FOSSEE
#+EMAIL:     
#+DATE:    

#+DESCRIPTION: 
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#+LANGUAGE:  en
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* 
#+begin_latex
\begin{center}
\vspace{12pt}
\textcolor{blue}{\huge Additional features of \texttt{ipython}}
\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,
 
  - Retrieve your ipython history. 
  - View a part of the history. 
  - Save a part of your history to a file. 
  - Run a script from within ipython. 
* Pre-requisite
  Spoken tuorial on -
  - Embellishing a Plot
* Exercise 1
  Read through the documentation of =%hist= and find out how to
  list all the commands between 5 and 10.
* Exercise 2
  Change the label on y-axis to "y" and save the lines of code
  accordingly
* Exercise 3
  Use =%hist= and =%save= and create a script that has the function show()
  in it.Run the script to produce the plot and display the same.

* Exercise 4
  Run the script without using the -i option. Do you find any
  difference?
* Solution 4
  We see that it raises ~NameError~ saying the name ~linspace~ is not
  found.
* Summary
  In this tutorial, we have learnt to –
  - Retrieve the history using =%hist= command.
  - View only a part of history by passing an argument to %hist.
  - Save the required lines of code in required order using %save command.
  - Use %run -i command to run the saved script.
* Evaluation
  1. How do you retrieve the recent 5 commands

    - ``%hist``
    - ``%hist -5``
    - ``%hist 5``
    - ``%hist 5-10``

  2. How do you save the lines 2 3 4 5 7 9 10 11

    - ``%save filepath 2-5 7 9-11``
    - ``%save filepath 2-11``
    - ``%save filepath``
    - ``%save 2-5 7 9 10 11``

  3. What will the command ``%hist 5 10`` display.

    - The recently typed commands from 5 to 10 inclusive of 
      the history command	
    - The recently typed commands from 5 to 10 excluding 
      the history command
* Solutions
  1. %hist 5

  2. %save filepath 2-5 7 9-11

  3. %hist 5 10
* 
#+begin_latex
  \begin{block}{}
  \begin{center}
  \textcolor{blue}{\Large THANK YOU!} 
  \end{center}
  \end{block}
\begin{block}{}
  \begin{center}
    For more Information, visit our website\\
    \url{http://fossee.in/}
  \end{center}  
  \end{block}
#+end_latex