Lecture
This lecture introduces the concept of operator overloading in C++, focusing on external overloading. It covers the difference between internal and external overloading, showcasing examples and the necessity of external overloading. The instructor explains how to implement external overloading for operators not directly related to a class. Various examples are provided, including the multiplication of a complex number by a double and the operator for displaying complex numbers. The lecture also discusses the use of friend functions for external overloading, allowing access to private elements. Overall, it provides a comprehensive understanding of external operator overloading in C++.