Texas Instruments TI-82 STATS User manual
Getting Started
with the
TI-82 STATS
ii
Important information
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© 2003 Texas Instruments Incorporated
.
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
iv
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
1
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
2
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.
3
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.
Í
Evaluates an
expression,
executes an
instruction, or
selects a menu
item.
É
Turns on the
TI-82 STATS.
y
Provides access
to the function
or character
shown above
each key in
g
reen.
ƒ
Provides access
to the
characters
shown above
each key in
orange.
4
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.
5
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).
6
Home screen (continued)
Example: Add 2 + 3 on the home screen.
Press Result
2Ã3
Í
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
Í
Entry line
Answer
line
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5
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