Operators

Operators are used to perform operations on variables or literal values.

---

Comparison Operators

Comparison operators are used to compare two values. The comparison evaluates to either True or False.

Comparison operators include:

• ==

• !=

• >

• <

• >=

• <=

print("comparison operators example")
print("----------------------------")
x = 1
y = 2
print("x =", x)
print("y =", y)
print("-----")
print("x == y   ->    ", x == y)
print("x != y   ->    ", x != y)
print("x > y    ->    ", x > y)
print("x < y    ->    ", x < y)

comparison operators example
----------------------------
x = 1
y = 2
-----
x == y   ->     False
x != y   ->     True
x > y    ->     False
x < y    ->     True

---

Logical Operators

Logical operators are used to combine boolean values.

Logical operators include:

• and

• or

• not

print("logical operators")
print("--------------------")
x = True
y = False
print("x =", x)
print("y =", y)
print("---------")
print("x and y  ->   ", x and y)
print("x or y   ->   ", x or y)
print("not x    ->   ", not x)
print("not y    ->   ", not y)

logical operators
--------------------
x = True
y = False
---------
x and y  ->    False
x or y   ->    True
not x    ->    False
not y    ->    True

Warning

Use parenthesis to specify the order of operations!

print(False and False == False)
print((False and False) == False)

False
True

Warning

The and and or operators may return unexpected results if applied to non-boolean types.

---

Arithmetic Operators

Arithmetic operators are used with numeric values to perform mathematical operations.

Arithmetic operations include:

• +

• -

• *

• /

• %

• **

• //

print("arithmetic operators")
print("--------------------")
x = 2
y = 3
print("x =", x)
print("y =", y)
print("-----")
print("x + y    ->   ", x + y)
print("x - y    ->   ", x - y)
print("x * y    ->   ", x * y)
print("x / y    ->   ", x / y)
print("x % y    ->   ", x % y)
print("x ** y   ->   ", x ** y)
print("x // y   ->   ", x // y)

arithmetic operators
--------------------
x = 2
y = 3
-----
x + y    ->    5
x - y    ->    -1
x * y    ->    6
x / y    ->    0.6666666666666666
x % y    ->    2
x ** y   ->    8
x // y   ->    0