Logical Operators (and, or, not)

Logical Operators (and, or, not) in Python

Logical operators are used to combine two or more conditions in a program. Logical operators are essential for creating more complex programs and for decision making. In Python, the logical operators are and, or, and not. They are used to evaluate two or more conditions and decide the output.

AND Operator

The and operator evaluates two conditions and returns True if both conditions are True. It will return False if one or both of the conditions are False. Here is an example:

a = 5
b = 6

if (a > 3) and (b > 3):
    print("Both conditions are true")

In the example above, both a > 3 and b > 3 are True, so the print statement will be executed.

OR Operator

The or operator evaluates two conditions and returns True if either condition is True. It will return False only if both conditions are False. Here is an example:

a = 5
b = 2

if (a > 3) or (b > 3):
    print("At least one condition is true")

In this example, a > 3 is True so the print statement will be executed.

NOT Operator

The not operator is used to reverse the logical state of a condition. It will take a condition that is True and evaluate it to False, and vice versa. Here is an example:

a = 5

if not a == 3:
    print("a is not equal to 3")

In this example, a is not equal to 3, so the print statement will be executed.

Tips

• The and and or operators can be used to combine multiple conditions.
• The not operator can be used to reverse the logical state of a condition.
• Logical operators are important for decision making in a program.