Python>>Data Type:Integer

addition = +

subtraction = –

multiplication = *

division = /

modulus = %
exponent = **
floor division = //

-modulus will output the remainder of the division

-exponent will output the exponent

-floor division will  output quotient in which the digits after the decimal point are removed.

Examples:

So is like 9 divided by 4 = 2 remainder 1.So the quotient without the remainder is the floor division.

So from what I learned, if you use division , the quotient of two whole numbers (int) becomes float because it has decimal point.

Example:

>>> 20/2

10.0

>>> div = 20/2

>>> print (div)

10.0

>>> print (type(div))

<class ‘float’>

>>> print (x)

16

>>> print (type(x))
<class ‘int’>

Some key things to take note:

1. Leading zeroes are not allowed to represent integeer or whole numbers

e.g.

>>> 012345

  File “<stdin>”, line 1

    012345

         ^

2. It does not allow comma to use as delimeter, use the symbol underscore (_)

e.g.

>>> 1,2,3,4

(1, 2, 3, 4)

>>> 1_2_3_4

1234

3. Do not use decimal point, else it will become a float data type

e.g.

>>> x = 100

>>> print (type(x))

<class ‘int’>

>>> x = 100.0

>>> print (type(x))

<class ‘float’>

4. As mentioned above, integers  can be binary, octal or hexadecimal values, but need to use these characters in front of it

binary = 0b

hexadecimal = 0x (or 0X)

octal = 0o (or 0O)

e.g.

decimal= 100

if convert becomes:

binary = 1100100

hexadecimal = 64
octal = 144

>>> 100

100

>>> 0b1100100

100

>>> 0x64

100

>>> 0o144

100

5. there’s a function called int() to convert strings to int

>>> x = 12.34

>>> int(x)

12

>>> x = 777.888

>>> int (x)

777

>>> int(‘100’)

100

If you directly put it inside the int function, you will get something like this error:

>>> int (‘777.888’)

Traceback (most recent call last):

  File “<stdin>”, line 1, in <module>

ValueError: invalid literal for int() with base 10: ‘777.888’

Since it is a float, need to do something like this:

>>> int(float(‘777.888’))

777