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Learn C++ for free with this interactive course, and get a handle on one of the most popular programming languages in the world.

You'll start with a simple hello world program and proceed to cover core concepts such as conditional statements, loops, and functions in C++, before moving on to more advanced topics like inheritance, classes, and templates, along with much more.

By the time you're done, you'll be an intermediate level C++ developer, ready to take on your own projects.

Learn C++ from Scratch

## Functions

Simply put, a **function** is a segment of code that is isolated from the *main* code segment. A *function* is called from a *section* of code. When the function's code has been executed, it returns to the *calling code*. 

The general form of a *function* is:

# Functions

Simply put, a **function** is a segment of code that is isolated from the *main* code segment. A *function* is called from a *section* of code. When the function's code has been executed, it returns to the *calling code*. 

The general form of a *function* is:

This lesson will have to do with using functions and recursion to improve readability and efficiency of your code. 

Introduction to Functions

This lesson will have to do with using functions and recursion to improve readability and efficiency of your code.

Introduction

Variables & User Input

Simple Maths

Conditional Statements

Loops

Functions and Recursion

C++ Exam 1

Pointers & Arrays

C++ Exam 2

Classes and Inheritance

Templates

C++ Exam 3

Introduction to Functions

Functions