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#+TITLE: Basic Data Types
#+AUTHOR: FOSSEE
#+DATE: 2010-09-14 Tue
#+EMAIL:     info@fossee.in

#+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 
** Datatypes in Python
    - Numbers
    - Boolean
    - Sequence
**  Operators in Python
    - Arithmetic Operators
    - Boolean Operators
** Python Sequence Datatypes
   - list
   - string
   - tuple

* Numbers
  - Integers
  - Float
  - Complex
* Question 1
   - Find the absolute value of 3+4j 
* Solution 1

        abs(3+4j)

* Question 2
  - What is the datatype of number 999999999999999999? Is it
not int?

* Solution 2
        
        - Long
        - Large integers numbers are internally stored in python
        as Long datatype.  


* Boolean
  #+begin_src python
    In []: t=True
    In []: f=False
  #+end_src

* Question 1
  - Using python find sqaure root of 3?

* Solution 1

  - 3**0.5

* Question 2
  - Is 3**1/2 and 3**0.5 same
* Solution 2
  - No,One gives an int answer and the other float        

* Sequence Data types
** Properties
 - Data in Sequence 
 - Accessed using Index
** Type
 - list
 - String
 - Tuple

* All are Strings
   #+begin_src python 
      k='Single quote'
      l="Double quote contain's single quote"
      m='''"Contain's both"'''

    #+end_src 
* Immutabilty Error
   #+begin_src python
      In []: greeting_string[1]='k'
      ---------------------------------------------------------------------------
      TypeError                                 Traceback (most recent call       last)

      /home/amit/st-scripts/basic-data-type/<ipython console> in <module>()

      TypeError: 'str' object does not support item assignment
   #+end_src 

* Question 1
   - Check if 3 is an element of the list [1,7,5,3,4]. In case
it is change it to 21.

* Solution 1
     #+begin_src python
        l=[1,7,5,3,4]
        3 in l
        l[3]=21
        l
     #+end_src
* Question 2
  - Convert the string "Elizabeth is queen of england" to
"Elizabeth is queen"

* Solution 2
     #+begin_src python
    s="Elizabeth is queen of england"                                                                                                                 
    stemp=s.split()                                                                                                                                   
    ' '.join(stemp[:3])                                                                                                                               
    #+end_src 
* Summary 
   #+begin_src python 
    a=73
    b=3.14
    c=3+4j

   #+end_src
* Summary Contd.
   #+begin_src python
     t=True
     f=False
     t and f
   #+end_src
* Summary Contd.
   #+begin_src python 
     l= [2,1,4,3]
     s='hello'
     tu=(1,2,3,4)
   #+end_src
* Summary Contd.
   #+begin_src python 
     tu[-1]
     s[1:-1]
   #+end_src
* Summary Contd.
   #+begin_src python  
     Sorted(l)
   #+end_src
* 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