Addition of tuples in Python

In Python, tuples are used to store an immutable sequence of elements. In this article, we will learn different methods to implement a Python program to add corresponding elements of tuples.

Here, you are given two equally sized tuples in Python and your task is to create a new tuple containing sum of corresponding elements of the tuples.

Consider the following example scenario ?

Scenario

# Input Tuples:
tup1 = (3, 6, 9, 45, 6)
tup2 = (11, 14, 21, 0, 6)

# Expected Output: (14, 20, 30, 45, 12)
# The corresponding elements are added:
# 3 + 11 = 14, 6 + 14 = 20, 9 + 21 = 30, 45 + 0 = 45, 6 + 6 = 12

Adding Corresponding Elements of Tuples

There are several approaches to add corresponding elements of two tuples. The methods include ?

• Using for loop
• Using map() and add()
• Using zip()
• Using numpy library

Using for Loop

Follow these steps to add corresponding elements using a for loop ?

• Run a for loop through the tuples and add elements at corresponding indices
• Append the sum to a list using append() function
• Convert the list to a tuple after the loop completes

Example

The code below shows how to add tuples using a for loop ?

# Input tuples
tup1 = (7, 5.7, 21, 18, 8/3)
tup2 = (9, 15, 6.2, 1/3, 11)

result_list = []
for i in range(0, len(tup1)):
    result_list.append(tup1[i] + tup2[i])

result_tuple = tuple(result_list)
print(result_tuple)

The output of the above code is ?

(16, 20.7, 27.2, 18.333333333333332, 13.666666666666666)

Using map() and add()

The map() function along with add() can find the sum of corresponding elements. The map() function takes the add function and two tuples as parameters ?

Example

The code below demonstrates how to add tuples using map() function ?

from operator import add

tup1 = (7, 5.7, 21, 18, 8/3)
tup2 = (9, 15, 6.2, 1/3, 11)

result_tuple = tuple(map(add, tup1, tup2))
print(result_tuple)

The output of the above code is ?

(16, 20.7, 27.2, 18.333333333333332, 13.666666666666666)

Using zip()

The zip() function aggregates elements from two tuples. First, zip() pairs corresponding elements, then sum() adds each pair ?

Example

The code below shows how to use zip() function to add tuples ?

# Input tuples
tup1 = (7, 5.7, 21, 18, 8/3)
tup2 = (9, 15, 6.2, 1/3, 11)

result = tuple(sum(pair) for pair in zip(tup1, tup2))
print(result)

The output of the above code is ?

(16, 20.7, 27.2, 18.333333333333332, 13.666666666666666)

Using NumPy Library

NumPy provides the add() function for element-wise addition. The np.add() function automatically handles tuple conversion internally ?

Example

The code below shows how to use numpy library to add tuple elements ?

import numpy as np

# Input tuples
tup1 = (1, 3, 4, 6, 8)
tup2 = (4, 5, 6, 2, 10)

# Add tuples using numpy and convert back to tuple
result_tuple = tuple(np.add(tup1, tup2))
print(result_tuple)

The output of the above code is ?

(5, 8, 10, 8, 18)

Comparison

Conclusion

Use zip() for readable Pythonic code, map() for functional programming, and NumPy for large datasets. The for loop approach is best for beginners to understand the underlying logic.