In this book, we introduce many of the programming commands and functions of the TI-92. As you use this book to learn programming, you also will learn structured programming techniques that help you program efficiently in the TI-92 programming language and in other programming languages as well. These techniques will help you write well-documented programs that are easy to follow, modify, and maintain. Forming good habits as you learn the structured programming approach for solving problems will pay big dividends in your career, even if programming is not a major part of your job. However, longer, more difficult problems will deepen your appreciation for structured programming.
Indentation is one way to create programs that are easy to read and follow.
In this book, because the calculator screen is only 38 characters wide, we use only one space for each level of indentation. This avoids excessive wrapping of program lines. Blank lines also improve the readability of programs. They are especially helpful between major blocks like subroutines, or between the last subroutine and the main routine. Use blank lines anywhere that you feel would be helpful.