25 Best Functions Courses Online
We compared 25 Functions courses currently listed on Coursera, Udemy and edX, priced from $9.99 to $165.00. 10 come from a named university or institution, including Johns Hopkins University, University of Michigan and University of Colorado Boulder. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.
- Courses compared
- 25
- Price range
- $9.99 – $165.00
- Providers
- Coursera, Udemy, edX
- Last updated
- 30 Aug 2026
How these 25 courses were chosen
Every course below is a real, currently listed course from Coursera, Udemy, edX, matched to "functions" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.
The grade on each entry scores how much the provider publishes about the course before you pay — the length and detail of the description, whether it lists learning outcomes and objectives — and whether a named university or institution stands behind it. A is fully documented and institution-backed; E is little more than a title and a price. Courses with almost nothing published are left ungraded rather than marked down, because an unknown course and a poor one are not the same thing.
There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $9.99 to $165.00, as listed by the provider when we last updated the page.
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1
Precalculus: Periodic Functions
Offered by Johns Hopkins University
This course helps to build the foundational material to use mathematics as a tool to model, understand, and interpret the world around us. This is done through studying functions, their properties, and applications to da...
$49.00listed price -
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2
Precalculus: Relations and Functions
Offered by Johns Hopkins University
This course helps to build the foundational material to use mathematics as a tool to model, understand, and interpret the world around us. This is done through studying functions, their properties, and applications to da...
$49.00listed price -
3
Python Functions, Files, and Dictionaries
Offered by University of Michigan
This course introduces the dictionary data structure and user-defined functions. You’ll learn about local and global variables, optional and keyword parameter-passing, named functions and lambda expressions. You’ll also...
$49.00listed price -
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4
Introduction to Python Functions
Offered by University of Colorado Boulder
How many times have you decided to learn a programming language but got stuck somewhere along the way, grew frustrated, and gave up? This specialization is designed for learners who have little or no programming experien...
$49.00listed price -
5
Udemy CertificateMicrosoft Excel Formulas and Functions: Comprehensive Guide
Are you ready to transcend basic spreadsheet operations and truly harness the immense capabilities of Microsoft Excel? Do you want to analyze complex datasets with surgical precision, automate tedious manual tasks, and g...
$19.99listed price -
6
Udemy CertificateMicrosoft Excel - Top 40 Excel Formulas & Functions
مرحبًا يكم فى كورس مايكروسوفت إكسل - أهم 40 دالة فى الإكسلMicrosoft Excel - Top 40 Excel Formulas and Functionsسندرس فى هذا الكورس 40 داله من أهم الدوال فى الإكسل مع أمثله عمليه على استخدامهاتعد دوال إكسل مهمة جدًا في مع...
$49.99listed price -
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7
Udemy CertificateAdvanced Excel functions
Welcome to our awesome Advanced Excel functions course We are glad to meet you. If only we could shake hands! Are you wondering how is this course going to be useful to you? Hey, did you watch the promo video? If not,...
$19.99listed price -
8
Udemy MOOC / Non-creditBest Math Course on Functions and Transformations
In this course you are going to learn everything that you need to know about high school level function and its transformation. The course consists of several video lesson, explaining the concepts as simply as possible a...
$94.99listed price -
9
Golang for Beginners: Data Types, Functions, and Packages
Offered by Coursera
In this 1.5-hour long guided project, you will get up to speed with the basics of the Go programming language. We will do this buy creating a command line interface airfare calculator step by step. Go (also known as Gola...
$9.99listed price -
10
Coursera MOOC / Non-creditUsing Basic Formulas and Functions in Microsoft Excel
Offered by Coursera
Have you started using spreadsheets like Excel and want to learn how to write formulas and functions to perform simple data analysis? In this project, you will learn about the general format for writing formulas and func...
$9.99listed price -
11
Coursera MOOC / Non-creditJavascript Basics with Operators, Loops and Functions
Offered by Simplilearn
This comprehensive JavaScript course will equip you with essential skills to build dynamic and responsive web applications. You’ll learn the fundamentals, control program flow, solve real-world problems, and manipulate t...
$49.00listed price -
12
Coursera MOOC / Non-creditR Programming: Conditionals, Loops, Functions, and Packages
Offered by Logical Operations
In this course, you'll continue to develop your R programming skills by writing conditional statements and loops—two of the most important constructs in any programming language. You'll also structure code for reuse by d...
$49.00listed price -
13
Coursera MOOC / Non-creditExcel: Data Analysis with Formulas/Functions and PivotTables
Offered by Logical Operations
In this course, you'll continue developing your data-analysis skills in Excel by analyzing data using formulas and functions. You'll also analyze data using PivotTables. This is the second course in a multi-course Specia...
$49.00listed price -
14
Calculus I: From Functions to Differential Equations
Offered by Delft University of Technology
Refresh and review your bachelor-level calculus. This course covers all the various differentiation and integration techniques and guides you through several important methods for solving differential equations.
$165.00listed price -
15
Calculus II: Multivariable Functions
Offered by Delft University of Technology
This course provides an overview of bachelor-level calculus of multivariable functions (Calculus II). You will review many basic concepts related to differentiation and integration of multivariable functions.
$165.00listed price -
16
MathTrackX: Polynomials, Functions and Graphs
Offered by Adelaide University
Develop an understanding of polynomial functions and graphs and how these build the algebraic foundations for more complex mathematical concepts.
$99.00listed price -
17
Udemy CertificatePython crash course in 120 mins.Explore loops,functions,elif
In this short but effective course, you'll get up to speed with Python in just two hours. It covers key programming concepts such as loops, functions, and conditional statements, making it a great choice if you're either...
$19.99listed price -
18
A-level Mathematics for Year 13 - Course 1: Functions, Sequences and Series, and Numerical Methods
Offered by Imperial College London
Develop your thinking skills, fluency and confidence to aim for an A* in A-level maths and prepare for undergraduate STEM degrees.
$69.00listed price -
19
Scientific Programming for AI with Python
Offered by RWTH Aachen University
Embark on a journey to master Python programming! This course will equip you with a solid understanding of essential techniques, including data structures, control statements, and functions. You'll also delve into advanc...
$99.00listed price -
20
Python Fundamentals for Designers
Offered by University of Michigan
Python Fundamentals for Designers is an introduction to programming using Python meant for students interested in how programming is applied to visual applications and design. The course introduces the foundations of pro...
$49.00listed price -
21
Automate Cybersecurity Tasks with Python
Offered by Google
This is the seventh course in the Google Cybersecurity Certificate. In this course, learners will be introduced to the Python programming language and learn how to apply it to a security setting to automate tasks. First,...
$49.00listed price -
22
BiteSize Python for Absolute Beginners: Flow Controls
Offered by University of Colorado Boulder
This course focuses on mastering Python’s control flow mechanisms, including branching, looping, and functions. It covers essential concepts such as making decisions with if, if-else, and if-elif-else structures (branchi...
$49.00listed price -
23
Introduction to Python for Researchers
Offered by Imperial College London
This course teaches the fundamentals of Python 3 in the context of academic research. Our tutor team support researchers across the whole of Imperial College London, including in science, engineering, mathematics, comput...
$49.00listed price -
24
Programming Foundations with JavaScript, HTML and CSS
Offered by Duke University
Learn foundational programming concepts (e.g., functions, for loops, conditional statements) and how to solve problems like a programmer. In addition, learn basic web development as you build web pages using HTML, CSS, J...
$79.00listed price -
25
Introduction to Object-Oriented Programming in C++
Offered by Goldsmiths, University of London & University of London
This course is the first of five courses aiming to help you to become confident working in the object-oriented paradigm in the C++ language. This specialisation is for individuals who want to learn about objected oriente...
$49.00listed price
Best Functions Courses Online compared
Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.
What the prices here tell you
The 25 priced courses on this page run from $9.99 to $165.00, with the middle of the range around $49.00 — a spread of $155.01. That is a wide gap for one subject. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.
Who is behind these courses
These courses come from Coursera, Udemy and edX. The platforms differ in how they sell: some charge once per course, others expect a subscription, and the listed price is not always what you pay at checkout after a promotion. 10 of these are produced by a named university or institution, including Johns Hopkins University, University of Michigan and University of Colorado Boulder — which usually means a fixed syllabus and a recognised certificate, rather than an individual instructor’s own course.
Before you enrol
Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page on 30 August 2026 — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.