Summary  
This chapter explains how to define named functions with parameters to encapsulate reusable logic and how to call those functions to execute their code.  

General domain of usage  
Building modular applications through reusable code components.

A comprehensive introduction to the C programming language, covering essential concepts, syntax, and practical skills for beginners. This course blends clear explanations with hands-on practice to build a solid foundation in C.

Learn the basic structure of a C program and how to write your first code.

Understand how to declare variables, use different data types, and perform operations in C.

Learn how to control the flow of your C programs using conditional statements.

Master the use of loops to perform repetitive tasks efficiently in C.

Discover how to define and use functions to organize and reuse code.

Defining and Calling Functions