Example programs on Arithmetic Operators

#Example program on All Arithmetic Operators

a=10 # value 10 is stored in variable a

b=2 # value 2 is stored in variable b

print('a+b=',a+b) #Addition operator

print('a-b=',a-b)#Subtraction operator

print('a*b=',a*b)#Multiplication

print('a/b=',a/b)#Division operator

print('a//b=',a//b)#Floor Division (integer Division)

print('a%b=',a%b)#Modulus operator Which gives remainder

print('a**b=',a**b)#Exponenet operator

"""output

a+b= 12

a-b= 8

a*b= 20

a/b= 5.0

a//b= 5

a%b= 0

a**b= 100

"""

#Ex2:Arithmetic OPerators

a=10.5

b=2

print(a+b)#12.5

print(a-b)#8.5

print(a*b)#21.0

print(a/b)#5.25

print(a//b)#5.0

print(a%b)#0.5

print(a**b)#110.25

"""output

12.5

8.5

21.0

5.25

5.0

0.5

110.25

"""

Note:

 (Devision)/ operator always performs floating point arithmetic so it will always returns float value. But floor division or integer division (//) can perform both floating point and integral arithmetic.

If values are integers then output is integer. If atleast once value is float then result is float.

If we want to use + operator for strings, then both parameters should be strings only otherwise we will get error.

Example:

>>>'rajendra'+15 #Error

>>> 'rajendra'+'15' #ok

'rajendra15'

>>> 

Ex2: If we use * operator for strings then we must use one parameter should be integer and other parameter should be string type

>>> "rajendra"*10

'rajendrarajendrarajendrarajendrarajendrarajendrarajendrarajendrarajendrarajendra'

>>> 10*"rajendra"

'rajendrarajendrarajendrarajendrarajendrarajendrarajendrarajendrarajendrarajendra'

We can’t multiply sequence by non-integer type ‘float’

Example:

>>> 2.5*"rajendra" #Error

>>> 

Note:

We can not perform zero division, If we perform zero division it leads to error.

Example:

>>> a=5

>>> a/0 #Error Division by Zero

Evaluate the following expression:

d=(x+y)*z**a//b+c

where x=1;y=2;z=3;a=2;b=2;c=3

>>> d=(1+2)*3**2//2+3

d=3*3**2//2+3 #parenthesis evaluated

d=3*9//2+3 #Exponential operator is evaluated

d=27//2+3 #Multiplication, division, and floor divisions are at equal priority

d=13+3 #addition and subtraction are afterwards

d=16 #finally assignment is performed, the value is 16 now stored in variable ‘d’

>>> print(d)

16

>>> 

Related Videos:https://youtu.be/6whfA-ARyMQ

Arithmetic Operator expression Evaluation

Previous Topic: Arithmetic Operators
Next Topic: Relational Operator