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Python Program to Perform Arithmetic Operations on Lists

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In this article, we will show you, How to write a Python Program to Perform Arithmetic Operations on Lists using For Loop, and While Loop with practical example.

Before you start, please refer List article to understand everything about Lists.

Python Program to Perform Arithmetic Operations on Lists Example

In this python program, we are using For Loop to iterate each and every element in a given List. Inside the loop we are performing arithmetic operations on elements of first and second list.

# Python Program to Perform List Arithmetic Operations
 
NumList1 = [10, 20, 30]
NumList2 = [5, 2, 3]
add = []
sub = []
multi = []
div = []
mod = []
expo = []
 
for j in range(3):
    add.append( NumList1[j] + NumList2[j])
    sub.append( NumList1[j] - NumList2[j])
    multi.append( NumList1[j] * NumList2[j])
    div.append( NumList1[j] / NumList2[j])
    mod.append( NumList1[j] % NumList2[j])
    expo.append( NumList1[j] ** NumList2[j])
 
print("\nThe List Items after Addition =  ", add)
print("The List Items after Subtraction =  ", sub)
print("The List Items after Multiplication =  ", multi)
print("The List Items after Division =  ", div)
print("The List Items after Modulus =  ", mod)
print("The List Items after Exponent =  ", expo)

OUTPUT

Python Program to Perform Arithmetic Operations on Lists 1

ANALYSIS
NumList1 = [10, 20, 30], NumList2 = [5, 2, 3]

For Loop – First Iteration: for 0 in range(3) – Condition is True
add.append( NumList1[0] + NumList2[0]) => add.append(10 + 5)
add[0] = 15
sub.append( 10 – 5) => sub[0] = 5
multi.append(10 * 5) => multi[0] = 50
div.append( 10 / 5) => div[0] = 2
mod.append( 10 % 5) => sub[0] = 0
expo.append(10 ** 5) => expo[0] = 10000

Second Iteration: for 1 in range(3) – Condition is True
add.append( 20 + 2) => add[1] = 22
sub.append( 20 – 2) => sub[1] = 18
multi.append(20 * 2) => multi[1] = 40
div.append( 20 / 2) => div[1] = 10
mod.append( 20 % 2) => sub[1] = 0
expo.append(20 ** 2) => expo[1] = 400

Third Iteration: for 2 in range(3) – Condition is True
Do the same for this iteration too

Fourth Iteration: for 3 in range(3) – Condition is False
So compiler will exit from For Loop

Perform Arithmetic Operations on Lists using For Loop

In this python program, we are using For Loop to allow users to enter their own number of elements for each list

# Python Program for Performing Arithmetic Operations on List

NumList1 = []
NumList2 = []
add = [] 
sub = [] 
multi = []
div = []
mod = []
expo = []

Number = int(input("Please enter the Total Number of List Elements: "))
print("Please enter the Items of a First and Second List   ")
for i in range(1, Number + 1):
    List1value = int(input("Please enter the %d Element of List1 : " %i))
    NumList1.append(List1value)

    List2value = int(input("Please enter the %d Element of List2 : " %i))
    NumList2.append(List2value)
    
for j in range(Number):
    add.append( NumList1[j] + NumList2[j])
    sub.append( NumList1[j] - NumList2[j])
    multi.append( NumList1[j] * NumList2[j])
    div.append( NumList1[j] / NumList2[j])
    mod.append( NumList1[j] % NumList2[j])
    expo.append( NumList1[j] ** NumList2[j])
 
print("\nThe List Items after Addition =  ", add)
print("The List Items after Subtraction =  ", sub)
print("The List Items after Multiplication =  ", multi)
print("The List Items after Division =  ", div)
print("The List Items after Modulus =  ", mod)
print("The List Items after Exponent =  ", expo)

OUTPUT

Python Program to Perform Arithmetic Operations on Lists 2

Perform Arithmetic Operations on Lists using While Loop

This program for performing arithmetic operations on list is same as above. We just replaced the For Loop with While loop.

# Python Program to Perform Arithmetic Operations on Lists
 
NumList1 = []; NumList2 = []
add = [] ; sub = [] ; multi = []
div = []; mod = [] ; expo = []
i = 0
j = 0
Number = int(input("Please enter the Total Number of List Elements: "))
print("Please enter the Items of a First and Second List   ")
while(i < Number):
    List1value = int(input("Please enter the %d Element of List1 : " %i))
    NumList1.append(List1value)

    List2value = int(input("Please enter the %d Element of List2 : " %i))
    NumList2.append(List2value)
    i = i + 1
    
while(j < Number):
    add.append( NumList1[j] + NumList2[j])
    sub.append( NumList1[j] - NumList2[j])
    multi.append( NumList1[j] * NumList2[j])
    div.append( NumList1[j] / NumList2[j])
    mod.append( NumList1[j] % NumList2[j])
    expo.append( NumList1[j] ** NumList2[j])
    j = j + 1
 
print("\nThe List Items after Addition =  ", add)
print("The List Items after Subtraction =  ", sub)
print("The List Items after Multiplication =  ", multi)
print("The List Items after Division =  ", div)
print("The List Items after Modulus =  ", mod)
print("The List Items after Exponent =  ", expo)

OUTPUT

Python Program to Perform Arithmetic Operations on Lists 3