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#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,

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#+TITLE:    Getting Started -- ~ipython~

#+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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* Outline

  + 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

* Question 1

  Type =ab= and hit tab to see what happens. Next, just type =a= and

  hit tab to see what happens.

* Solution 1

  =ab= tab completes to =abs= and =a<tab>= gives us a list of all the

  commands starting with a.

* Question 2

  Look-up the documentation of =round= and see how to use it.

* Solution 2

  =round?=

* Question 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 

  Look-up the documentation of =round= and see how to use it.

* Solution 3

  We get 2.0, 2.5 and 2.48, which are what we expect. 

* Question 4

  Try typing =round(2.484=, and hit enter. and then cancel the command

  using Ctrl-C. Then, type the command, =round(2.484, 2)= and resume

  the video.

* Solution 4

  #+begin_src python

    round(2.484 

    ^C

    round(2.484, 2)

  #+end_src 

* Summary

  + invoking and quitting the ~ipython~ interpreter

  + navigating the history

  + using tab-completion to work faster

  + looking-up documentation using ~?~

  + sending keyboard interrupts using ~Ctrl-C~

* Thank you!

#+begin_latex

  \begin{block}{}

  \begin{center}

  This spoken tutorial has been produced by the

  \textcolor{blue}{FOSSEE} team, which is funded by the 

  \end{center}

  \begin{center}

    \textcolor{blue}{National Mission on Education through \\

      Information \& Communication Technology \\ 

      MHRD, Govt. of India}.

  \end{center}  

  \end{block}

#+end_latex