Table of Contents
In this tutorial, we will learn about the Python sum() method with the help of examples.
The sum() function adds the items of an iterable and returns the sum.
Example
marks = [65, 71, 68, 74, 61] # find sum of all marks total_marks = sum(marks) print(total_marks) # Output: 339
1. sum() Syntax
The syntax of the sum() function is:
sum(iterable, start)
The sum() function adds start and items of the given iterable from left to right.
2. sum() Parameters
- iterable – iterable (list, tuple, dict, etc). The items of the iterable should be numbers.
- start (optional) – this value is added to the sum of items of the iterable. The default value of start is 0 (if omitted)
3. sum() Return Value
sum() returns the sum of start and items of the given iterable.
4. Example: Working of Python sum()
numbers = [2.5, 3, 4, -5] # start parameter is not provided numbers_sum = sum(numbers) print(numbers_sum) # start = 10 numbers_sum = sum(numbers, 10) print(numbers_sum)
Output
4.5 14.5
If you need to add floating-point numbers with exact precision, then you should use math.fsum(iterable) instead.
If you need to concatenate items of the given iterable (items must be strings), then you can use the join() method.
'string'.join(sequence)
Visit this page to learn about, Python join() Method
Related posts:
Python globals()
Python id()
Python Program to Differentiate Between del, remove, and pop on a List
Python dict()
Python Program to Check If a List is Empty
Python open()
Python Program to Get the Class Name of an Instance
Python Program to Represent enum
Python Dictionary get()
Python Program to Create a Countdown Timer
Python Exception Handling Using try, except and finally statement
Python Operators
Machine Learning with Python for everyone - Mark E.Fenner
Python Set pop()
Python setattr()
Deep Learning with Python - Francois Cholletf
Python Input, Output and Import
Applied Text Analysis with Python - Benjamin Benfort & Rebecca Bibro & Tony Ojeda
Python Program to Convert Bytes to a String
Python List count()
Python *args and **kwargs
Python float()
Python String isprintable()
APIs in Node.js vs Python - A Comparison
Python while Loop
Python String lstrip()
Python Program to Slice Lists
Python Program to Find the Factorial of a Number
Python Program to Display Calendar
Python Artificial Intelligence Project for Beginners - Joshua Eckroth
Python Dictionary update()
Python String splitlines()
