Operator

Arithmetic Operator¶

Operator	Name	Description	Example	Output
+	Addition	Adds two numbers	5 + 3	8
-	Subtraction	Subtracts the second from the first	10 - 4	6
*	Multiplication	Multiplies two numbers	2 * 6	12
/	Division	Divides the first by the second (float)	8 / 2	4.0
//	Floor Division	Division with result rounded down	7 // 2	3
%	Modulus	Remainder of the division	7 % 2	1
**	Exponentiation	Raises to the power	2 ** 3	8

In [4]:

a = 72
b = 5
print(a % b)

a = 72 b = 5 print(a % b)

2

Comparison Operator¶

Operator	Meaning	Example
==	Equal to	5 == 5 → True
!=	Not equal to	5 != 3 → True
>	Greater than	5 > 3 → True
<	Less than	5 < 3 → False
>=	Greater than or equal	5 >= 5 → True
<=	Less than or equal	3 <= 5 → True

In [1]:

a = 11.5
b = 10

print(a == b)
print(a != b)

a = 11.5 b = 10 print(a == b) print(a != b)

False
True

Logical Operator¶

Operator	Description	Example
and	True if both are True	True and True → True
or	True if any is True	True or False → True
not	Inverts True/False	not True → False

In [2]:

a = True 
b = False 

print(a and b)
print(a or b)
print(not a)

a = True b = False print(a and b) print(a or b) print(not a)

False
True
False

In [3]:

num_1 = 10
num_2 = 20

(num_1 < 15) and (num_2 >15)

num_1 = 10 num_2 = 20 (num_1 < 15) and (num_2 >15)

Out[3]:

True

Operator Precedence¶

Precedence	Operator Type	Operators	Description
1	Parentheses	()	Overrides default precedence
2	Exponent	**	Power
3	Unary	+x, -x, ~x	Unary plus, minus, bitwise NOT
4	Multiply/Divide	*, /, //, %	Multiplication, division, etc.
5	Add/Subtract	+, -	Addition and subtraction
6	Comparison	==, !=, >, <, >=, <=	Compare values
7	Logical NOT	not	Logical negation
8	Logical AND	and	Logical AND
9	Logical OR	or	Logical OR

In [1]:

a = 5
-a

a = 5 -a

Out[1]:

-5

In [ ]:

x = 5
y = 10
z = 15

# Precedence: > then and then not
print(not x > 2 and y < 20) 

# Use parentheses to control order
print(not (x > 2 and y < 20))  # not(True and True) → False

x = 5 y = 10 z = 15 # Precedence: > then and then not print(not x > 2 and y < 20) # Use parentheses to control order print(not (x > 2 and y < 20)) # not(True and True) → False

False
False

In [ ]: