Texas Instruments TI-82 Keystroke Manual page 3

Preface
This Guide is designed for students using a Texas Instruments TI-82 or TI-83 graphing calculator in
conjunction with the textbook Elementary Algebra: Discovery and Visualization, 2nd edition, by
Hubbard and Robinson. There is a separate section of the Guide for each calculator model. The TI-82
section begins on page 1; the TI-83 section begins on page 27. The following description of the Guide
and how to use it applies to both sections.
The Guide assumes no prior experience in using a graphing calculator. Therefore, it begins with
an Introduction chapter dealing with the basics: how to turn the calculator on, how to turn it off, how
to adjust the screen contrast, and how to enter and edit basic arithmetic expressions. You should
probably go through the Introduction chapter of this Guide as soon as you get your calculator. The
Introduction chapter will give you an opportunity to familiarize yourself with the basic operation of
your calculator so that you will be ready to learn the other features described later in the Guide.
The Introduction chapter is followed by the Graphing Calculator Keystroke Guide, which is
keyed to the textbook. As you look at the pages in the textbook, you will notice that in the left margin
of some pages a book icon & appears next to a key word or phrase, with a brief reference to a related
feature on the graphing calculator appearing in the body of the text. Corresponding to each of these
key words or phrases in the textbook, this Guide provides a detailed description of how to use the
related feature on your particular graphing calculator model. In the Guide each key word or phrase is
printed as it appears in the textbook, and on the line above it is the number of the page on which it
appears in the textbook. Each key word or phrase will also have its own number (in boldface type)
for easy future reference. For example, on page 14 in the textbook you will find a book icon in the left
margin with the key words "Absolute Value" next to it and a brief reference in the body of the text to
the calculator notation ABS. If you are using a TI-82 graphing calculator, look on page 9 in this
Guide. If you are using a TI-83, look on page 35 in this Guide. You will see a reference to the
absolute value feature:
page 14
10 Absolute Value,
followed by a description of how to enter expressions involving absolute values on your calculator.
The boldface number 10 is a reference number which may be used later in the Guide to refer you
quickly to this description of the absolute value feature.
As you begin to use the Guide to read about the key words and phrases, you may want to keep a
bookmark in the Guide at the most recently examined key word or phrase. If you go through the
chapters of the textbook in the order they are printed, you will encounter the new key words and
phrases in the order they are printed in this Guide. Thus, your bookmark will usually be at or near the
next key word or phrase you will want to read about, and you will be able to refer to it quickly when
needed.
I would like to thank the authors of the textbook, Elaine Hubbard and Ronald D. Robinson, and
the staff of Houghton Mifflin, particularly Charles Hartford, Editor in Chief; and Kathy Yoon,
Editorial Assistant, for their support and assistance in the production of this Guide.
Karl M. Zilm
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