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#+TITLE:    
#+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
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* 
#+begin_latex
\begin{center}
\vspace{12pt}
\textcolor{blue}{\huge Getting started with \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, 
   - invoke the ~ipython~ interpreter.
   - quit the ~ipython~ interpreter.
   - navigate in the history of ~ipython~.
   - use tab-completion.
   - look-up documentation of functions.
   - interrupt incomplete or incorrect commands.
* Exercise 1
  1. Type =ab= and hit tab to see what happens.
  2. Next, just type =a= and hit tab to see what happens.
* Exercise 2
  Look-up the documentation of =round= and see how to use it
* Exercise 3
  Check the output of
  #+begin_src python
    round(2.48)
    round(2.48, 1)
    round(2.48, 2)
    
    round(2.484)
    round(2.484, 1)
    round(2.484, 2)
  #+end_src 
* Solution 3
  We get 2.0, 2.5 and 2.48, which are what we expect. 
* Exercise 4
  1. Type =round(2.484=, and hit enter and then cancel the command
     using Ctrl-C.
  2. Then, type the command, =round(2.484, 2)= and resume
     the video.
* Summary
  In this tutorial, we have learnt to –
   - invoke the ~ipython~ interpreter by typing ipython. 
   - quit the ~ipython~ interpreter by using ~Ctrl-d~. 
   - navigate in the history of ~ipython~ by using the arrow keys. 
   - use tab-completionto work faster. 
   - see the documentation of functions using question mark.
   - interrupt using ~Ctrl-c~ when we make an error.
* Evaluation

  1. ``ipython`` is a programming language similar to Python.
     - True or False

  2. Which key combination quits ``ipython``?

     - Ctrl + C
     - Ctrl + D
     - Alt + C
     - Alt + D

  3. Which character is used at the end of a command, in Ipython to
     display the documentation.

    - under score (\_)
    - question mark (?)
    - exclamation mark (!)
    - ampersand (&)
* Solutions
   
  1. False
  
  2. Ctrl + D

  3. question mark (?)

* 
#+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