Function Evaluation: Basics

This lecture covers the three main aspects of a function: summary/contract, creation/definition, and usage/call. It explains the evaluation process of a function call, including the steps involved and examples. The lecture also discusses the evaluation of function calls with arguments and return values, as well as the concept of calling one function from another while emphasizing the importance of function prototyping. Additionally, it summarizes the jargon related to function calls, highlighting the relationship between function usage and return values. Throughout the lecture, examples and code snippets are provided to illustrate the concepts discussed.