Python Code to Compute and Display the Sum of Odd Integers from 17 Through 251 Inclusively

Today, we will dive into a simple yet effective Python code that computes and displays the sum of all odd integers from 17 through 251 inclusively. This example is not just a demonstration of Python's capabilities but also a great exercise for beginners to understand iterative processes and built-in functions.

Problem Statement

The task is to find and sum all the odd integers from 17 to 251. We will explore different approaches and methods to achieve this, including using Python's built-in functions and a loop-based solution.

Solution 1: Using the sum Function

The first and most concise way to solve this problem is by using the sum function along with the range function. This method is efficient and straightforward.

# Initialize the sum variabletotal_sum  0# Use the sum function with range to sum all odd integers from 17 to 251for num in range(17, 252, 2):    total_sum   num# Display the resultprint(total_sum)

In this code, the range function is used with a step of 2 to ensure we only iterate over odd numbers. The sum function then calculates the total sum of these numbers. The result will be printed, providing the sum of all odd integers from 17 to 251.

Solution 2: Using a Loop

If you are just starting with Python and want to understand the underlying mechanism, the loop-based approach is a great way to learn. Here, we use a basic for loop to achieve the same result as the previous solution.

# Initialize the sum variabletotal_sum  0# Loop through the range from 17 to 251for num in range(17, 252):    # Check if the number is odd    if num % 2 ! 0:        total_sum   num# Display the resultprint(total_sum)

Here, we manually check if each number is odd using the modulus operator. If the number is odd, we add it to the total sum. The loop runs through the range, ensuring we capture all odd numbers within the specified bounds.

Understanding the Range Function

The range function is crucial in both solutions. It generates a sequence of numbers from the start value (inclusive) to the stop value (exclusive). By specifying a step of 2, we ensure we only generate odd numbers. For example, range(17, 252, 2) will generate numbers like 17, 19, 21, and so on, up to 251.

Alternative: Using a While Loop

Another approach is to use a while loop. This is a step further in terms of complexity but can be a good exercise to understand control flow in Python.

# Initialize the sum variable and the starting numbertotal_sum  0num  17# Loop until we reach 251while num  252:    # Check if the number is odd    if num % 2 ! 0:        total_sum   num    # Increment the number by 2 to get the next odd number    num   2# Display the resultprint(total_sum)

In this code, we initialize a variable num to 17 and increment it by 2 in each iteration. This ensures that only odd numbers are considered and added to the total sum. The loop runs until num reaches 252.

Conclusion

Through these examples, we have seen how to compute the sum of all odd integers from 17 to 251 using Python. Whether you choose to use the sum function, a for loop, or a while loop, understanding the range function and control flow is key to solving similar problems efficiently.

Related Keywords

Python odd integers sum computation

Further Reading and Practice

To further enhance your Python skills, you might want to explore other similar problems and exercises. Some resources include:

Pyaron's official documentation LeetCode for problem-solving practice Codecademy for interactive learning