* Data Types

*** Outline

***** Introduction

******* What are we going to do?

******* How are we going to do?

******* Arsenal Required

********* None

*** Script

    Welcome friends. 

    In this tutorial we shall look at data types available in Python and 

    how to perform simple Input and Output operations. 

    for 'Numbers' we have: int, float, complex datatypes

    for Text content we have strings.

    For conditional statements, 'Booleans'.

    Lets get started by opening IPython interpreter. 

    Lets start with  'numbers'

    All integers irrespective of how big they are, are of 'int'

    data type

    Now we will create a variable, say

    x = 13

    print x

    To check the data type of any variable Python provides 'type' function

    type(x)

    y = 999999999999

    print y

    Floating point numbers comes under 'float'

    p = 3.141592

    type(p)

    Python by default provides support for complex numbers. 

    c = 3+4j 

    c is a complex number. 'j' is used to specify the imaginary part.

    type(c)

    Python also provides basic functions for their manipulations like

    abs(c) will return the absolute value of c(sqrt(a^2 + b^2))

    c.imag returns imaginary part and c.real gives the real part. 

    Next we will look at Boolean datatype:

    Its a primitive datatype having one of two values: True or False.

    t = True

    print t

    Python is case sensitive language, so True with 'T' is boolean type but

    true with 't' would be a variable. 

    f = not True

    we can do binary operation like 'or' and 'not' with these variables

    f or t

    f and t

    in case of multiple binary operations to make sure of precedence use 

    'brackets ()'

    a = False

    b = True

    c = True

    (a and b) or c    

    True

    first a and b is evaluated and then the 'or' statement

    a and (b or c)

    False

    we come to the end of this tutorial on introduction of Data types in

    Python. In this tutorial we have learnt what are supported data types, 

    supported operations and performing simple IO operations in Python.

*** Notes