In this step-by-step tutorial, you'll learn how to use Python's sum () function to add numeric values together. You also learn how to concatenate sequences, such as lists and tuples, using sum ().

Nov 27, 2025 · The sum () function in Python is used to add up numbers from any iterable such as a list, tuple, set, or dictionary values. It provides a clean and efficient way to calculate totals without writing …

Definition and Usage The sum() function returns a number, the sum of all items in an iterable.

In this tutorial, we will learn about the sum () function with the help of examples.

Apr 11, 2025 · Complete guide to Python's sum function covering iterables, start values, and practical examples of summation.

When using `sum ()`, it’s important to understand the role of its optional second parameter, `start`. This parameter defines the initial value from which the summation begins. By default, `start` is `0`, which …

Mar 17, 2025 · Python has a built - in sum() function that simplifies the process of summing a sequence. The basic syntax is sum(iterable, start = 0), where iterable is the sequence of numbers to be …