Python Operators(contd)-6(b)

Let us continue the discussion with Python Assignment Operators

Everything that has been shared on the blogs must be noted in the register regularly.

Please read the description and example carefully

Assume variable a holds 10 and variable b holds 20, then −

 a+=2 is using the shorthand operator. Normal assignment would be a=a+2. So, "+=" is the shorthand operator. 

Operator	Description	Example
=	Assigns values from right side operands to left side operand	c = a + b assigns value of   a + b into c
+= Add AND	It adds right operand to the left operand and assign the result to left operand	c += a is equivalent to c = c + a
-= Subtract AND	It subtracts right operand from the left operand and assign the result to left operand	c -= a is equivalent to c = c - a
*= Multiply AND	It multiplies right operand with the left operand and assign the result to left operand	c *= a is equivalent to c = c * a
/= Divide AND	It divides left operand with the right operand and assign the result to left operand	c /= a is equivalent to c = c / a
%= Modulus AND	It takes modulus using two operands and assign the result to left operand	c %= a is equivalent to c = c % a
**= Exponent AND	Performs exponential (power) calculation on operators and assign value to the left operand	c **= a is equivalent to c = c ** a
//= Floor Division	It performs floor division on operators and assign value to the left operand	c //= a is equivalent to c = c // a

• The assignment operators are used frequently when we are doing programming. 
• New values are created using assignment operators, taking the inputs from the user.
• Assignment statements will use variables and constants as "OPERANDS" and arithmetic operators(+,-,*,/,// or %) as  "OPERATORS"

Python Comparison Operators

• These operators compare the values on either sides of them and decide the relation among them. 
• They are also called Relational operators.

Assume variable a holds 10 and variable b holds 20, then −

Operator	Description	Example
==	If the values of two operands are equal, then the condition becomes true.	(a == b) is not true.
!=	If values of two operands are not equal, then condition becomes true.	(a != b) is true.
<>	If values of two operands are not equal, then condition becomes true.	(a <> b) is true. This is similar to != operator.
>	If the value of left operand is greater than the value of right operand, then condition becomes true.	(a > b) is not true.
<	If the value of left operand is less than the value of right operand, then condition becomes true.	(a < b) is true.
>=	If the value of left operand is greater than or equal to the value of right operand, then condition becomes true.	(a >= b) is not true.
<=	If the value of left operand is less than or equal to the value of right operand, then condition becomes true.	(a <= b) is true.

Example #2: Comparison operators in Python

x = 10
y = 12

# Output: x > y is False
print('x > y  is',x>y)

# Output: x < y is True
print('x < y  is',x<y)

# Output: x == y is False
print('x == y is',x==y)

# Output: x != y is True
print('x != y is',x!=y)

# Output: x >= y is False
print('x >= y is',x>=y)

# Output: x <= y is True
print('x <= y is',x<=y)

EXERCISE (Home Work)

1. Write detailed notes on:-
• arithmetic operators
• assignment operators
• comparison operators
2. How is "=" different from "= =" operators?
3. Differentiate between "/", "//" and the "%" operators.
4. Differentiate between "< >" and " !=".
5. What are shorthand operators? Give examples.
6. What would be the result of
• an arithmatic expression
• a comparison