Python Program to Find the Sum of Array Elements

1. Introduction

Arrays are fundamental data structures in computer programming used to store multiple values in a single variable. One common operation performed on arrays is calculating the sum of its elements. This operation is crucial in various programming scenarios, such as statistical analysis, data processing, and algorithms that require the total sum of a series of numbers. This blog post will demonstrate how to write a Python program to find the sum of elements in an array.

2. Program Steps

1. Define an array of numbers.

2. Initialize a variable to hold the sum of the array elements.

3. Iterate through the array, adding each element to the sum variable.

4. After completing the iteration, the sum variable will contain the total sum of the array elements.

5. Display the sum to the user.

3. Code Program

# Step 1: Define an array of numbers
array = [1, 2, 3, 4, 5]

# Step 2: Initialize the sum variable
sum_of_elements = 0

# Step 3: Iterate through the array to calculate the sum
for element in array:
    sum_of_elements += element

# Step 5: Display the sum of the array elements
print(f"The sum of the array elements is: {sum_of_elements}")

Output:

The sum of the array elements is: 15

Explanation:

1. The program begins by defining an array containing the numbers 1 through 5. This array can be of any size and contain any set of numbers as per the user's requirement.

2. It initializes a variable named sum_of_elements to 0. This variable will accumulate the sum of the array elements as the program iterates through the array.

3. The program then iterates through each element in the array using a for loop. During each iteration, the current element's value is added to sum_of_elements.

4. After the loop completes, sum_of_elements contains the total sum of all the elements in the array.

5. Finally, the program prints out the sum, providing the user with the total sum of the array elements. This demonstrates a simple yet effective way to calculate the sum of array elements in Python.