Texas Instruments TI-82 STATS Manual de usuario

Getting Started

with the

TI-82 STATS

Important information

Texas Instruments makes no warranty, either express or implied, including

but not limited to any implied warranties of merchantability and fitness for

a particular purpose, regarding any programs or book materials and makes

such materials available solely on an "as-is" basis.

In no event shall Texas Instruments be liable to anyone for special, collateral,

incidental, or consequential damages in connection with or arising out of

the purchase or use of these materials, and the sole and exclusive liability of

Texas Instruments, regardless of the form of action, shall not exceed the

purchase price of this calculator. Moreover, Texas Instruments shall not be

liable for any claim of any kind whatsoever against the use of these

materials by any other party.

US FCC Information Concerning Radio Frequency 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 with 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.

iii

Contents

About the TI-82 STATS....................................................................1

About this book ..............................................................................2

TI-82 STATS keys..............................................................................3

Turning the TI-82 STATS on and off...............................................4

Home screen....................................................................................5

yand ƒkeys.........................................................................7

‘and y5.........................................................................8

Entering an expression ...................................................................9

TI-82 STATS menus........................................................................10

Editing and deleting.....................................................................13

Using ¹and Ì.............................................................................15

Using parentheses.........................................................................17

Storing a value..............................................................................19

Graphing a function .....................................................................21

Changing mode settings...............................................................23

Setting the graphing window......................................................26

Using q....................................................................................28

Building a table.............................................................................29

Using the CATALOG......................................................................31

Performing simple calculations....................................................32

Using the equation solver ............................................................35

Entering data into lists .................................................................37

Plotting data .................................................................................39

Calculating a linear regression.....................................................43

Calculating statistical variables ....................................................44

Using the MATRIX Editor..............................................................45

Error messages ..............................................................................49

Resetting defaults.........................................................................50

Connecting to a computer ...........................................................51

Quick reference.............................................................................51

Texas Instruments (TI) Support and Service.................................53

Battery precautions.......................................................................54

About the TI-82 STATS

The TI-82 STATS includes these features:

•Graphing - store, graph, and analyze up to 10 functions,

up to 6 parametric functions, up to 6 polar functions, and

up to three sequences.

•Sequences - generate sequences and graph them over

time.

•Tables - create function evaluation tables to analyze many

functions simultaneously.

•Matrices - enter and save up to 10 matrices and perform

standard matrix operations on them.

•Lists - enter and save as many lists as memory allows for

use in statistical analyses.

•Statistics - perform one- and two-variable, list-based

statistical analyses, including logistic and sine regression

analysis; plot the data as a histogram, xyLine, scatter plot,

modified or regular box-and-whisker plot, or normal

probability plot.

The CD included with your TI-82 STATS package also includes an

electronic guidebook, which is a complete reference manual for

the TI-82 STATS. If the CD is not available, you can download a

copy of the electronic guidebook from the Texas Instruments web

page at

education.ti.com/guides

About this book

This Getting Started Guide was designed for:

•students who are using a graphing calculator for the first

time.

•student who are using the TI-82 STATS for the first time.

•students who need a quick review of procedures for

common operations on the TI-82 STATS.

This book gives a quick overview of each topic, along with

keystroke instructions for easy examples. All examples assume

that the TI-82 STATS is using default settings. For complete

information on any topic, see the electronic guidebook on the CD

that came with your TI-82 STATS.

Look for the symbol at the top of the page in this guide.

These notes direct you to the chapter in the Guidebook that

provides complete details about the topic.

TI-82 STATS keys

}~†|

Let you move

the cursor in

four directions.

‘

Clears (erases)

the entry line

or deletes an

entry and

answer on the

home screen.

Evaluates an

expression,

executes an

instruction, or

selects a menu

item.

Turns on the

TI-82 STATS.

Provides access

to the function

or character

shown above

each key in

reen.

Provides access

to the

characters

shown above

each key in

orange.

Turning the TI-82 STATS on and off

To turn on the TI-82 STATS, press É. The É

key is located at the lower left corner of the

TI-82 STATS.

To turn off the TI-82 STATS, press the ykey

followed by the Ékey. OFF is the second function of É.

When you turn off the TI-82 STATS, all settings and memory

contents are retained. The next time you turn on the TI-82 STATS,

the home screen displays as it was when you last used it.

Automatic Power Down™

To prolong the life of the batteries, Automatic Power Down™

(APD™) turns off the TI-82 STATS automatically after about five

minutes without any activity. The next time you turn on the

calculator, it is exactly as you left it.



For more details,

see Guidebook

Chapter 1.

Home screen

When you turn on your TI-82 STATS the first time, you should see

this screen:

If you cannot read the text on the screen, press the ykey and

then press and hold †or }. Pressing †lightens the screen and

}darkens the screen.

To clear this text from your screen, press ‘twice. You should

now see the home screen, a blank screen with a flashing cursor.

The home screen is where you enter problems and see results.

If you pressed ‘above and you still do not see a blank home

screen, press the ykey followed by the zkey (to select

QUIT).

Home screen (continued)

Example: Add 2 + 3 on the home screen.

Press Result

2Ã3

Note: Results are displayed on the next line (the answer line), not on the

entry line.

Example: Multiply 5 x 4.

Press Result

5¯4

Entry line

Answer

line

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