• In python, we have the logical operator.
• "Logical operator" used to perform the different logical operations on the value of variables.
• The logical operators are applicable for boolean and non-boolean types.
• Boolean types are:

• True, False
• non-boolean types are :

1. 0
2. 1
3. empty string. 

1. And
2. or
3. Not

•   And operator: And operator is used when both arguments are True then the result is True.
• syntax:  x and y

Example: write a python code for And operator.

1.a=10

2.b=20

3.print(a>30 And b<30)

4.False

•  or operator: or operator is used when at least any one of the arguments is true then the result will be True.
• syntax: x or y

Example: Write a python code using the or operator.

1. a=2
2. b=5
3. print(a<3 or b>)

• not operator: not operator is the opposite to the result of an argument, if it is true then the result is False and vice-versa.
• syntax: x not y

Example: write a python code using the not operator.

1. x=5
2. y=10
3. print(not x==y)
4. True

•  In python, we have the assignment operator
• Definition: The assignment operator is used to assigning a value to variables.
• eg:x=100
• Here we just assign a value of 100 to the x variable.
• we use the '"="  symbol to assign the values to the variables.
• After assigning the values to the variables it performs the different types of operations.
• The assignment operator mixed with another operator is called compound operator.
• The different types of compound operators are:

1. +=       
2. -=      
3. *=     
4. /=      
5. %= 
6. //=    
7. **=   
8. &=
9. |=
10. ^=
11. >>=
12. <<=

Example: write a python program  using assignmnet operators.

• Identity operator, before going to identity operator let's have a small idea about its background.
• We have multiple operators from them special operator is the one, in that special operator we are having two types of operators :
• 1.Identity operator.
• 2.Membership operator.
• Now let's talk about the identity operator,
• "Identity operator" is used to compare whether the value in the first argument may be or may not be the same in the second argument.
• In identity operator we have two  types, they are:

1. is
2.  is not

• "is" operator is used to saying that the value is present in the corresponding argument.
• If the value is present in the corresponding argument then it returns True, else False.
• is operator always checks the address comparison
• "is not " operator is used to saying that the value is not present in the corresponding argument.
• If the value not presents then it returns the True otherwise False.

Example: write a python program using is identity operator.

1. a="apple"
2. b="apple"
3. print(a is b)
4. True

#2.write a python program using isnot operator.

1. a="Apple"
2. b="apple"
3. print(a isnot b)
4. True

 let us know in detail about the python power operator.

            1.  using **

            2.  using pow()function.

• For two arguments we write the power as (a,b) i.e  a to the power of b
• For three it is written as (a,b,c) i.e x to the power of b, modulus c.
• The syntax for 3 arguments is (a,b,c).

Now let us  go to  some practical examples:

#1.write a python program to calculate the power of a number

#2.write a python program to calculate the power of a number.

• Let's discuss python, not equal operators.  
•  In python, there are different types of operators available,in that we have not equal operators.
• Not equal to operator comes under the comparison operator as we compare the one variable with the other.
• Python not equal to the operator is used for the same data type values.
• When we compare one variable with another variable by using not equal operators we will get the boolean type values. bool type is True or False. if the values are not equal then it returns True value and if the values are equal then it returns the False value.
• The syntax for not equal to is !=  mostly used in the python 3 versions.
  

Python Not Equal Operator (!=) Explained with Examples

The not equal operator is one of the most commonly used comparison operators in Python. Whether you're comparing numbers, strings, or variables, understanding how != works is fundamental to writing clean conditional logic.

What Is the Not Equal Operator in Python?

In Python, the != operator checks whether two values are not equal to each other. It belongs to the family of comparison operators, and it always returns a boolean value — either True or False.

• If the two values are different, it returns True
• If the two values are same, it returns False
• Works with integers, floats, strings, lists, and more
• != is the standard syntax used in Python 3

Syntax

#1. write a python program to describe not equal to operator using integer

1. a=2.5
2. b=1.0
3. c=5.0
4. print(a!=b)
5. true
6. print(b!=c)
7. true
8. print(a!=b!=c)
9. true

#2. write a python program to describe not equal to an operator using string

• Python, not equal operator  using string

1. x='apple'
2. y='ball'
3. print(x!=y)

output: true

#1. Python Not Equal Operator with Float Numbers

Let's start with a simple example comparing float values using !=:

a = 2.5
b = 1.0
c = 5.0

print(a != b)       # True  — 2.5 and 1.0 are different
print(b != c)       # True  — 1.0 and 5.0 are different
print(a != b != c)  # True  — all three values are different

Output:

True
True
True

Notice that a != b != c is Python's way of chaining comparisons. It checks that a is not equal to b, AND b is not equal to c — both in a single expression.

#2. Python Not Equal Operator with Integers

Works exactly the same with whole numbers:

x = 10
y = 20

print(x != y)   # True  — 10 and 20 are different
print(x != 10)  # False — 10 and 10 are equal

Output:

True
False

#3. Python Not Equal Operator with Strings

String comparisons with != are case-sensitive. 'Apple' and 'apple' are treated as different values:

x = 'apple'
y = 'ball'

print(x != y)              # True  — different strings
print(x != 'apple')        # False — same string
print('Apple' != 'apple')  # True  — case-sensitive!

Output:

True
False
True

#4. Using Not Equal in an if Statement

The most practical use of != is inside if conditions to control program flow:

username = "admin"
input_user = "guest"

if input_user != username:
    print("Access denied. You are not the admin.")
else:
    print("Welcome, admin!")

Output:

Access denied. You are not the admin.

Quick Reference Table

Key Points to Remember

• != is the standard not equal operator in Python 3
• Always returns a boolean — True or False
• Works across all data types: int, float, string, list, tuple
• String comparisons are case-sensitive by default
• Can be chained: a != b != c checks multiple values at once

The != operator is simple but powerful. Once you get comfortable using it in if statements, loops, and filters, you'll find yourself reaching for it constantly in real-world Python code.

• In this  program we will discuss about how to check whether a character is vowel or consonant.
• In English language will be having 5 vowels and 21 consonants.
• To check entered character is vowel or consonant, first Read input character from user using scanf.
• There are only 5 vowels(A,E,I,O,U), so we need to check entered character is there in those 5 characters.
• If it is present then we can say its an vowel, otherwise it is a consonant.
• While checking we need to consider case sensitivity. So we need to check both uppercase vowels and lower case vowels.
• Lets see an example program to check whether entered character is vowel or not.

Write a program to determine whether the input character is a vowel or consonant or not an alphabet

• Lets discuss a program on how to print prime numbers from 1 to 100.
• Here by default we need to print all prime numbers from 1 to 100.
• No need to ask user to enter a number because we need to end loop at 100.
• Using for loop iterate from 1 to 100
• Take one more loop and check each number is divisible by 1 and itself or not.
• Program to print prime number between 1 to 100 in c

#1.C program to print prime numbers from 1 to 100