# Assignment and Bitwise operators

## Augmented Assignment Operator

* Assignment operators are used in Python to assign values to variables

Eg: a = 10

Augmented Assignment Operator:

* It combines assignment operator with other logical operators like addition, multiplication etc.

* This operators that allows to write shortcut assignment statement

# Simple Expression i = 1 i = i + 1 print('Simple expression value is',i) # Additional Assignment j = 1 j +=1 # This means j = j + 1 print('Additional Assignment value is',j) # Subtraction Assignment k=1 k -= 2 # k = k -2 print('Subtraction Assignment value is',k) # Multiplication Assignment m = 2 m *= 2 # m = m * 2 print('Multiplication Assignment value is',m) # Float Division Assignment n=5 n /= 2 # n = n / 2 print('Float Division Assignment value is',n) # Integer division Assignment p = 5 p //= 2 # p = p // 2 print('Integer division Assignment value is',p) # Remainder Assignment q = 5 q %= 2 # q = q % 2 print('Remainder Assignment value is',q) # Exponent Assignment r = 3 r **= 2 # r= r ** 2 print('Exponent Assignment value is',r)

Output: Simple expression value is 2 Additional Assignment value is 2 Subtraction Assignment value is -1 Multiplication Assignment value is 4 Float Division Assignment value is 2.5 Integer division Assignment value is 2 Remainder Assignment value is 1 Exponent Assignment value is 9

## Bitwise operators

Bitwise operators are used to compare (binary) numbers. It works on bits and performs bit by bit operation

Method to convert a number to binary number

syntax: '{0:08b}'.format(number)

Where,

{} - places a variable into a string

0 - takes the variable at argument position 0

: - adds formatting options for this variable (otherwise it would represent decimal 6)

08 - formats the number to eight digits zero-padded on the left

b - converts the number to its binary representation

#Sample Code a = 17 b = 10 print("Binary number for {0} is {0:08b}".format(a)) print('Binary number for {0} is {0:08b}'.format(b)) Output: Binary number for 17 is 00010001 Binary number for 10 is 00001010

Bitwise operators Sample Code

# Binary AND - Sets each bit to 1 if both bits are 1 # 00000000 print('Binary AND value is ',a&b) # Binary OR - Sets each bit to 1 if one of two bits is 1 # 00011011 print('Binary OR value is ',a|b) # Binary XOR - Sets each bit to 1 if only one of two bits is 1 # 00011011 print('Binary XOR value is ',a^b) # Binary Ones Complement - Inverts all the bits # 11101110 print('Binary Ones Complement is ',~a) # Binary Right Shift '''Shift right by pushing copies of the leftmost bit in from the left, and let the rightmost bits fall off''' # 00000100 print('Binary Right Shift is ',a>>2) # Binary Left Shift - Shift left by pushing zeros in from the right

and let the leftmost bits fall off # 01000100 print('Binary Left Shift is ',a<<2)

Output: Binary AND value is 0 Binary OR value is 27 Binary XOR value is 27 Binary Ones Complement is -18 Binary Right Shift is 4 Binary Left Shift is 68