The chapter 2.cpp file basically illustrates how much we’ve learned so far in class. So those terms are the ones to be used only in the project. There is also a limit to not exceed a certain amount of characters in one line of code(reference chapter2.cpp).
“For Project 1, use only C++ features that are introduced in chapters 1 and 2 in the textbook.

In other words, no user-defined functions or library functions (sqrt, pow, abs, etc.) allowed. (If those terms mean nothing to you, despair not. We’ll cover them all later in the class.)

You should need only int and double variables, if/else, and a while loop. And some formatting for a double variable in the output.”

The recommended # of comments as suggested by rubric is between 2-4 meaningful ones explaining what a certain section of code might be performing.