Get a handle on C++, which is one of the most popular programming languages in the world.

Fundamentals of Web Programming

C++ is a common first choice for software developers when optimal performance and high safety are necessary. You'll start with a simple hello world program and proceed to cover core concepts such as conditional statements, loops, and functions in C++.

Basic Programming Skills with C++

## Introduction

Let's consider the example of the recursive factorial function. In this lesson, we will calculate the factorial of a number `n` denoted by `n!`. 

> 📝 The factorial of a given number is the product of the number by all the numbers smaller than it until it reaches 1.

 

> 📝 We can only calculate the factorial for the non-negative integers.

### Illustration
Consider the illustration below for `n = 5`. You will see that we can represent the factorial problem in terms of itself, and eventually, reach a case that can be solved directly. When we reach that case, we will start returning value to the calling function.


# Introduction

Let's consider the example of the recursive factorial function. In this lesson, we will calculate the factorial of a number `n` denoted by `n!`. 

> 📝 The factorial of a given number is the product of the number by all the numbers smaller than it until it reaches 1.

 

## Illustration
Consider the illustration below for `n = 5`. You will see that we can represent the factorial problem in terms of itself, and eventually, reach a case that can be solved directly. When we reach that case, we will start returning value to the calling function.


Before We Begin

Getting Started

Variables and Constants

Data Types and Input

Operators

Conditional Statements

Loops

Functions

Recursion

Classes

Conclusion

Calculating the Factorial of a Number

Introduction