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#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]
#+BEAMER_FRAME_LEVEL: 1
#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra)
#+PROPERTY: BEAMER_col_ALL 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 :ETC
#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]
#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl}
#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
#+LaTeX_HEADER:\usepackage{listings}
#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,
#+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
#+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries}
#+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
#+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc
* 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
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