Learn how to calculate the Greatest Common Divisor (GCD) of two numbers using functions in C programming with this informative video tutorial. Whether you're a beginner or an experienced programmer, this guide provides clear explanations and practical examples to help you master this essential mathematical operation. Discover the concept of GCD and understand its significance in various applications. Explore how to design and implement a GCD function that takes two integers as input and returns their GCD value. We'll cover different approaches, including the Euclidean algorithm, to efficiently compute the GCD. Learn how to handle scenarios involving negative numbers and zero. Additionally, gain insights into optimizing your code for efficiency and handling larger numbers. By the end of this video, you'll be equipped with the knowledge and confidence to find the GCD using functions in C programming. Don't miss out on this essential tutorial that will enhance your problem-solving skills and expand your programming repertoire.