How to Calculate the Sum of Natural Numbers from 1 to 7 in Python using a For Loop

Learn how to easily compute the sum of natural numbers between 1 and 7 in Python with a for loop! This guide is perfect for beginners and students.
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How to Calculate the Sum of Natural Numbers from 1 to 7 in Python using a For Loop

If you're looking to compute the sum of the first seven natural numbers, you've come to the right place! This is a common task in programming, particularly for beginners in Python. This guide will guide you step-by-step on how to achieve this using a simple for loop. Let's dive in!

Understanding Natural Numbers

Natural numbers are the set of positive integers starting from 1. So, for our purpose here, the natural numbers between 1 and 7 are:

1, 2, 3, 4, 5, 6, 7

The task is to add these numbers together to get the total sum.

Why Use a For Loop?

A for loop in Python allows you to iterate over a sequence (like a list or a range of numbers) and perform actions multiple times. In this case, we will loop over the range of numbers from 1 to 7 and calculate their sum.

Step-by-Step Guide to Write the Program

Step 1: Initialize a Variable for the Sum

We will start by creating a variable to hold the total sum of the numbers. Initially, this sum will be set to 0.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Create a For Loop

Next, we set up a for loop that goes through each number in the range from 1 to 8. (Note that range(1, 8) includes 1 through 7.)

[[See Video to Reveal this Text or Code Snippet]]

Inside this loop, we'll add each number to the sum variable.

Step 3: Update the Sum

In each iteration of the loop, we will add the current number to the total sum.

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Print the Result

After completing the loop, we can print the final sum. This can be done using the print() function to display the result to the user.

[[See Video to Reveal this Text or Code Snippet]]

Full Code Example

Here's how the complete program looks:

[[See Video to Reveal this Text or Code Snippet]]

Running the Program

When you run this program, you will see the output that displays the sum of the natural numbers from 1 to 7. The result should be 28 since:

1 + 2 + 3 + 4 + 5 + 6 + 7 = 28

Conclusion

In this guide, we learned how to calculate the sum of natural numbers from 1 to 7 using a for loop in Python. This simple task is a great way to practice your coding skills and familiarize yourself with loops in Python. Give it a try for your school project, and happy coding!

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