In this chapter, we will examine how to organize our code into small independent units called functions. This allows us to build reusable components, which we can call easily form anywhere we wish by setting up parameters and calling them.
Typically, in software development, we start with low-level components. Then we build on these to create higher- and higher-level modules. So far, we know how to loop, perform conditional logic, and perform some arithmetic. Now, we examine how to compartmentalize code into building blocks.
We introduce the stack, a computer science ...
