Texas Instruments -84 Plus Manual

TI-84 Plus

TI-84 Plus Silver Edition

Guidebook

Important Information

Important InformationImportant Information

Important Information

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to any implied warranties of merchantability and fitness for a particular purpose,

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Windows and Macintosh are trademarks of their respective owners.

iii

USA FCC Information Concerning Radio Frequency

USA FCC Information Concerning Radio FrequencyUSA FCC Information Concerning Radio Frequency

USA FCC Information Concerning Radio Frequency

Interference

InterferenceInterference

Interference

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC rules. These limits are designed to provide

reasonable protection against harmful interference in a residential installation. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed

and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a

particular installation.

If this equipment does cause harmful interference to radio or television reception, which

can be determined by turning the equipment off and on, you can try to correct the

interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

• Consult the dealer or an experienced radio/television technician for help.

Caution: Any changes or modifications to this equipment not expressly approved

by Texas Instruments may void your authority to operate the equipment.

Chapter 1: Operating the TI-84 Plus Silver Edition 1

Chapter 1:

Chapter 1:Chapter 1:

Chapter 1:

Operating the TI-84 Plus Silver Edition

Operating the TI-84 Plus Silver EditionOperating the TI-84 Plus Silver Edition

Operating the TI-84 Plus Silver Edition

Documentation Conventions

Documentation ConventionsDocumentation Conventions

Documentation Conventions

In the body of this guidebook, TI-84 Plus refers to the TI-84 Plus Silver Edition.

Sometimes, as in Chapter 19, the full name TI-84 Plus Silver Edition is used to

distinguish it from the TI-84 Plus.

All the instructions and examples in this guidebook also work for the TI-84 Plus. All the

functions of the TI-84 Plus Silver Edition and the TI-84 Plus are the same. The two

graphing calculators differ only in available RAM memory, interchangeable faceplates,

and Flash application ROM memory.

TI-84 Plus Keyboard

TI-84 Plus KeyboardTI-84 Plus Keyboard

TI-84 Plus Keyboard

Generally, the keyboard is divided into these zones: graphing keys, editing keys,

advanced function keys, and scientific calculator keys.

Keyboard Zones

Keyboard ZonesKeyboard Zones

Keyboard Zones

Graphing — Graphing keys access the interactive graphing features.

Editing — Editing keys allow you to edit expressions and values.

Advanced — Advanced function keys display menus that access the advanced

functions.

Chapter 1: Operating the TI-84 Plus Silver Edition 2

Scientific — Scientific calculator keys access the capabilities of a standard scientific

calculator.

TI-84 Plus

TI-84 PlusTI-84 Plus

TI-84 Plus

raphing Keys

Editing Keys

Advanced

Function Keys

Scientific

Calculator Keys

Chapter 1: Operating the TI-84 Plus Silver Edition 3

Using the Color

Using the ColorUsing the Color

Using the Color.

.Coded Keyboard

Coded KeyboardCoded Keyboard

Coded Keyboard

The keys on the TI-84 Plus are color-coded to help you easily locate the key you need.

The light colored keys are the number keys. The light gray keys along the right side of the

keyboard are the common math functions. The light gray keys across the top set up and

display graphs. The Œkey with the purple lettering provides access to applications such

as the Inequality Graphing application.

The primary function of each key is printed on the keys. For example, when you press

, the MATH menu is displayed.

Using the

Using theUsing the

Using the yand

andand

and ƒKeys

KeysKeys

Keys

The secondary function of each key is printed in blue above the key. When you press the

blue ykey, the character, abbreviation, or word printed in blue above the other keys

becomes active for the next keystroke. For example, when you press yand then

, the TEST menu is displayed. This guidebook describes this keystroke combination

as y:.

The alpha function of each key is printed in green above the key. When you press the

green ƒkey, the alpha character printed in green above the other keys becomes

active for the next keystroke. For example, when you press ƒand then , the

letter Ais entered. This guidebook describes this keystroke combination as ƒ[A].

Chapter 1: Operating the TI-84 Plus Silver Edition 4

Turning On and Turning Off the TI-84 Plus

Turning On and Turning Off the TI-84 PlusTurning On and Turning Off the TI-84 Plus

Turning On and Turning Off the TI-84 Plus

Turning On the Graphing Calculator

Turning On the Graphing CalculatorTurning On the Graphing Calculator

Turning On the Graphing Calculator

To turn on the TI-84 Plus, press É.

• If you previously had turned off the graphing calculator by pressing yM, the

TI-84 Plus displays the home screen as it was when you last used it and clears any

error.

The ykey

accesses the

second function

printed in blue

above each key.

The ƒkey

accesses the alpha

function printed in

green above each

key.

Chapter 1: Operating the TI-84 Plus Silver Edition 5

• If Automatic Power Down™ (APD™) had previously turned off the graphing

calculator, the TI-84 Plus will return exactly as you left it, including the display, cursor,

and any error.

• If the TI-84 Plus is turned off and connected to another graphing calculator or

personal computer, any communication activity will “wake up” the TI-84 Plus.

To prolong the life of the batteries, APD turns off the TI-84 Plus automatically after about

five minutes without any activity.

Turning Off the Graphing Calculator

Turning Off the Graphing CalculatorTurning Off the Graphing Calculator

Turning Off the Graphing Calculator

To turn off the TI-84 Plus manually, press y M.

• All settings and memory contents are retained by Constant Memory™.

• Any error condition is cleared.

Batteries

BatteriesBatteries

Batteries

The TI-84 Plus uses five batteries: four AAA alkaline batteries and one SR44SW or 303

silver oxide backup battery. The silver oxide battery provides auxiliary power to retain

memory while you replace the AAA batteries. To replace batteries without losing any

information stored in memory, follow the steps in Appendix C.

Chapter 1: Operating the TI-84 Plus Silver Edition 6

Setting the Display Contrast

Setting the Display ContrastSetting the Display Contrast

Setting the Display Contrast

Adjusting the Display Contrast

Adjusting the Display ContrastAdjusting the Display Contrast

Adjusting the Display Contrast

You can adjust the display contrast to suit your viewing angle and lighting conditions. As

you change the contrast setting, a number from 0 (lightest) to 9 (darkest) in the top-right

corner indicates the current level. You may not be able to see the number if contrast is too

light or too dark.

Note: The TI-84 Plus has 40 contrast settings, so each number 0 through 9 represents

four settings.

The TI-84 Plus retains the contrast setting in memory when it is turned off.

To adjust the contrast, follow these steps.

1. Press and release the ykey.

2. Press and hold †or }, which are below and above the contrast symbol (blue, half-

shaded circle).

•†lightens the screen.

•}darkens the screen.

Note: If you adjust the contrast setting to 0, the display may become completely blank. To

restore the screen, press and release y, and then press and hold }until the display

reappears.

Chapter 1: Operating the TI-84 Plus Silver Edition 7

When to Replace Batteries

When to Replace BatteriesWhen to Replace Batteries

When to Replace Batteries

When the batteries are low, a low-battery message is displayed when you turn on the

graphing calculator.

To replace the batteries without losing any information in memory, follow the steps in

Appendix C.

Generally, the graphing calculator will continue to operate for one or two weeks after the

low-battery message is first displayed. After this period, the TI-84 Plus will turn off

automatically and the unit will not operate. Batteries must be replaced. All memory

should be retained.

Note: The operating period following the first low-battery message could be longer than

two weeks if you use the graphing calculator infrequently.

The Display

The DisplayThe Display

The Display

Types of Displays

Types of DisplaysTypes of Displays

Types of Displays

The TI-84 Plus displays both text and graphs. Chapter 3 describes graphs. Chapter 9

describes how the TI-84 Plus can display a horizontally or vertically split screen to show

graphs and text simultaneously.

Home Screen

Home ScreenHome Screen

Home Screen

The home screen is the primary screen of the TI-84 Plus. On this screen, enter

instructions to execute and expressions to evaluate. The answers are displayed on the

same screen.

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