Texas Instruments Titanium TI-89 Product information sheet

TI-89 Titanium
© 2004 Texas Instruments Incorporated
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ii
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Interference
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Table of Contents
iii
Introduction ......................................................................v
The TI-89 Titanium graphing calculator........................................ v
How to use this guidebook............................................................ v
1 Getting Started..................................................................1
Initial start-up ................................................................................. 1
TI-89 Titanium keys......................................................................... 4
Mode settings .............................................................................. 10
Using the Catalog to access commands ..................................... 12
Calculator Home screen ............................................................... 14
Working with Apps ...................................................................... 16
Checking status information ....................................................... 22
Turning off the Apps desktop...................................................... 23
Using the clock ............................................................................ 24
Using menus ................................................................................. 29
Using split screens ........................................................................ 36
Managing Apps and operating system (OS) versions................. 40
Connecting your TI-89 Titanium to other devices ...................... 41
Batteries ........................................................................................ 43
2 Previews...........................................................................47
Performing Computations ........................................................... 47
Symbolic Manipulation ................................................................ 50
Constants and Measurement Units ............................................. 52
Basic Function Graphing I ........................................................... 53
Basic Function Graphing II .......................................................... 55
Parametric Graphing .................................................................... 56
Polar Graphing ............................................................................ 58
Sequence Graphing ..................................................................... 59
3D Graphing ................................................................................ 61
Differential Equation Graphing .................................................. 63
Additional Graphing Topics ......................................................... 66
Tables ............................................................................................ 67
Split Screens .................................................................................. 68
Data/Matrix Editor........................................................................ 70
Statistics and Data Plots .............................................................. 71
Programming ............................................................................... 77
Text Operations ........................................................................... 79
Numeric Solver ............................................................................. 81
Number Bases ............................................................................... 82
Memory and Variable Management .......................................... 84

iv
3 Activities.......................................................................... 89
Analyzing the Pole-Corner Problem ............................................ 89
Deriving the Quadratic Formula..................................................90
Exploring a Matrix ........................................................................92
Exploring cos(x) = sin(x)................................................................93
Finding Minimum Surface Area of a Parallelepiped ..................94
Running a Tutorial Script Using the Text Editor..........................95
Decomposing a Rational Function............................................... 97
Studying Statistics: Filtering Data by Categories ........................ 99
CBL 2™ Program for the TI-89 Titanium ...................................102
Studying the Flight of a Hit Baseball.........................................103
Visualizing Complex Zeros of a Cubic Polynomial ....................105
Solving a Standard Annuity Problem ........................................107
Computing the Time-Value-of-Money ......................................108
Finding Rational, Real, and Complex Factors............................110
Simulation of Sampling without Replacement......................... 110
Using Vectors to Determine Velocity.........................................111
4 Connectivity .................................................................. 115
Connecting Two Units ................................................................ 115
Transmitting Variables, Flash Applications, and Folders ..........117
Transmitting Variables under Program Control........................121
Upgrading the Operating System (OS)......................................123
Collecting and Transmitting ID Lists .......................................... 126
Compatibility among the TI-89 Titanium, Voyage™ 200,
TI-89, and TI-92 Plus.............................................................. 128
5 Memory and Variable Management ............................ 131
Checking and Resetting Memory............................................... 131
Displaying the VAR-LINK Screen ................................................132
Manipulating Variables and Folders with VAR-LINK ................134
Pasting a Variable Name to an Application ..............................142
Archiving and Unarchiving a Variable....................................... 143
If a Garbage Collection Message Is Displayed...........................144
Memory Error When Accessing an Archived Variable..............147
A Appendix A: Functions and Instructions ..................... 149
Quick-Find Locator...................................................................... 150
Alphabetical Listing of Operations............................................154
B Appendix B: General Information................................ 279
Texas Instruments Support and Service .....................................279
Texas Instruments (TI) Warranty Information ...........................280
Index.............................................................................. 283

Introduction v
Introduction
The TI-89 Titanium graphing calculator
This guidebook provides information about a powerful, advanced
graphing calculator available from Texas Instruments: the TI-89 Titanium.
Your TI-89 Titanium comes equipped with a variety of preinstalled
software applications (Apps) that have features relevant to many
different subjects and curriculums.
Using Flash read-only memory (ROM) for the TI-89 Titanium (4 megabytes
[MB] available), you can install additional Apps and increase the
capabilities of your calculator. Installing Apps and operating system (OS)
upgrades is like installing software on a computer. All you need is
TI Connect™ software and a TI Connectivity Cable.
The TI-89 Titanium graphical user interface (GUI) and configurable Apps
desktop make it easy to organize Apps into categories that you create.
Extend the reach of your TI-89 Titanium with accessories, such as the
Calculator-Based Laboratory™ (CBL 2™) systems, Calculator-Based
Ranger™ (CBR™) system, TI-Presenter™ video adapter, and
TI ViewScreenoverhead panel.
The CBL 2 and CBR systems offer static and real-world data collection.
Use the TI-Presenter video adapter to connect the TI-89 Titanium to video
display/recording devices, such as TVs, VCRs, video cameras, and
computer projectors. The TI ViewScreen overhead panel lets you project
an enlarged image of the TI-89 Titanium display so an entire class can
view it.
How to use this guidebook
We’ve added conventions to make it easier for you to get the most out of
this guidebook.
• Key symbols appear throughout the guidebook.
• Many keys can perform more than one function. To use secondary
functions, which are printed above the keys, you must first press 2,
j, or ¹. These extra functions are printed within brackets in this
guidebook.
For example, a procedure might include this key sequence used to
display a menu of special characters:
Press 2¿. (Press and release the 2key, then press the ¿
key, which is the second function of the «key.)

vi Introduction
• Key commands that require you to press and hold two keys at the
same time are indicated by the phrase press and hold. For example,
the instruction to darken the display contrast is:
Press and hold 8and tap «.
• Your graphing calculator uses menus to access many operations.
Menu options often can be selected using one of two methods. For
example,
Press „9:Trig
means that you can choose the Trig option first by pressing „and
then either pressing the 9key or pressing Das many times as
required to select Trig, and then pressing ¸.
The chapters in this guidebook include:
Getting Started – Offers students and educators in all curriculums a
quick overview of the basic operations of the TI-89 Titanium.
Previews – A set of short examples that include step-by-step procedures,
actual keystrokes, and sample displays.
Activities – A set of longer examples that shows how to solve, analyze,
and visualize actual mathematical problems.
Connectivity – How to link your graphing calculator to another
calculator or to a computer using either the USB or the I/O port, with
details about how to transmit variables and applications, and how to
upgrade the operating system.
Memory and Variable Management – How to manage variables
stored in your graphing calculator’s memory and in the data archive, a
protected area of memory separate from RAM (random access memory).
Technical Reference – Includes the syntax and action of each function
and instruction included in the operating system, an alphabetical listing
of operations, error messages, and other reference information.
The remainder of the product information is available in electronic form.
This comprehensive set of electronic chapters is included on the CD-ROM
that came with your TI-89 Titanium. This same information is also
available online as a free download at:
education.ti.com/guides

Getting Started 1
1
Getting Started
Initial start-up
Installing the AAA Batteries
The TI-89 Titanium uses four AAA alkaline batteries and a backup silver
oxide battery (SR44SW or 303). The backup batteries are already
installed, and the AAA batteries are provided with the product.
1. Remove the battery cover from the back of the calculator.
2. Unwrap the four AAA batteries provided with your product and
insert them in the battery compartment. Arrange the batteries
according to the polarity (+ and -) diagram in the battery
compartment.
3. Replace the battery cover on the calculator. The cover should snap
into place.
Turning on your TI-89 Titanium for the first time
After installing the batteries included with the calculator, press ´. The
Apps desktop appears.

2 Getting Started
Note: If your calculator initializes the preinstalled Apps, a progress bar
will appear with the message “Installation in progress . . . Do
not interrupt!” instead of the Apps desktop. To avoid losing Apps, do
not remove the batteries during initialization. (You can re-install Apps
from either the Product CD-ROM or education.ti.com.)
Adjusting the contrast
The Apps desktop
The Apps desktop is the starting point for operating your TI-89 Titanium.
Your installed Apps appear on the Apps desktop as icons organized in
categories for easy access. From the Apps desktop, you can:
• Open Apps.
• Select and edit categories of Apps.
• View all of the Apps installed on your calculator.
• View the full name of the highlighted App.
• View and edit the time and date.
• Check status line information.
• View split-screen mode information.
TI-89 Titanium Apps desktop
Progress bar
• To lighten the display, press and hold 8and tap |.
• To darken the display, press and hold 8and tap «.
CHAR
VAR-LINK
Ë
Ì
Ê
Ï
Î
Í

Getting Started 3
ÊView full name of highlighted App.
ËView time and date.
ÌPress ¸to open highlighted App.
ÍScroll down to view additional Apps.
ÎCheck status line information.
ÏEdit categories.
To return to the Apps desktop at any time, press O. The last category
selected appears with the last open App highlighted.
Turning off the calculator
Press 2®. The next time you turn on the calculator, the Apps
desktop appears with the same settings and memory contents retained.
(If you turned off the Apps desktop, the calculator Home screen appears.)
You can use either of the following keys to turn off the TI-89 Titanium.
Note: ® is the second function of the ´ key.
The calculator’s Automatic Power Down™ (APD™) feature prolongs
battery life by turning the calculator off automatically following several
minutes of inactivity. When you turn on the calculator after APD:
• The display, cursor, and any error conditions are exactly the same as
before APD.
• All settings and memory contents are retained.
Press: Description
2 ® (press 2
and then press ®)
Settings and memory contents are retained
by the Constant Memory™ feature.
• You cannot, however, use 2 ® if an
error message is displayed.
• When you turn the TI-89 Titanium on
again, it displays either the Home screen
or the Apps desktop (regardless of the
last application you used).
¥ ® (press ¥
and then press ®)
Similar to 2 ® except:
• You can use ¥ ® if an error message is
displayed.
• When you turn the TI-89 Titanium on
again, it will be exactly as you left it.

4 Getting Started
Note: APD does not function when a calculation or program is in
progress, unless a pause is specified in the calculation or program.
TI-89 Titanium keys
TI-89 Titanium keys
ÊFunction keys (ƒ– Š) open toolbar menus, access Apps, and edit
categories of Apps.
ËCursor keys (A, B, C, D) move the cursor.
ÌNumeric keypad performs math and scientific functions.
ÍModifier keys (2, 8, 7) add features by increasing the number of
key commands.
Ë
Ì
Í
Ê

Getting Started 5
Entering special characters
Use the CHAR (Character) menu and key commands to enter special
characters. The CHAR menu lets you access Greek, math, international,
and other special characters. An on-screen keyboard map shows the
locations of shortcuts used to enter other commonly used characters.
To select characters from the CHAR menu:
1. Press 2G. The CHAR menu appears.
2. Use the cursor keys to select a category. A submenu lists the
characters in that category.
3. Use the cursor keys to select a character, and press ¸.
Example: Enter the right arrow symbol (→) in the Text Editor.
To open the keyboard map, press 8”. The keyboard map appears.
Press Result
2G
4
9
– or –
Press Drepeatedly to
select 9:→
and press ¸
Scroll down for more
characters.
Symbol displayed at cursor
location.

6 Getting Started
To type most characters, press 2and the corresponding key. Press N
to close the map.
Example: Use the keyboard map to find the “not equal to” symbol (ƒ)
shortcut and enter the symbol in the Program Editor.
Modifier keys
Modifier keys add features by increasing the number of keyboard
operations at your fingertips. To access a modifier function, press a
modifier key and then press the key for the corresponding operation.
Press Result
8”
¥Á
Keys Description
2
(Second)
Accesses Apps, menu options, and other
operations. Second functions are printed
above their corresponding keys in the same
color as the 2key.
8
(Diamond)
Accesses Apps, menu options, and other
operations. Diamond functions are printed
above their corresponding keys in the same
color as the 8key.
¤
(Shift)
Types an uppercase character for the next
letter key you press. Also used with Aand B
to highlight characters when editing.
Symbol displayed
at cursor location.

Getting Started 7
Example: Access the VAR-LINK [All] screen, where you can manage
variables and Apps.
Function keys
Use the function keys to perform the following operations:
• On the Apps desktop, open Apps and select or edit Apps categories.
• On the calculator Home screen, open toolbar menus to select math-
related operations.
• Within Apps, open toolbar menus to select App options.
Numeric keypad
The numeric keypad lets you enter positive and negative numbers.
To enter a negative number, press ?before typing the number.
Note: Don’t confuse the negation key (?) with the subtraction key (|).
To enter a number in scientific notation:
1. Type the numbers that precede the exponent. (This value can be an
expression.)
2. Press 2 ^. The exponent symbol (í) follows the numbers you
entered.
3. Type the exponent as an integer with up to three digits. (As the
following example shows, you can use a negative exponent.)
j
(Alpha)
Lets you type alphabetic characters without a
QWERTY keypad. Alpha characters are
printed above their corresponding keys in the
same color as the jkey.
Press Result
2°
Keys Description

8 Getting Started
Example: On the calculator Home screen, enter 0.00685 using scientific
notation.
Other important keys
Press Result
6¶85
^
?3
¸
Key Command Description
8# Displays the Y= Editor.
8$ Displays the Window Editor.
8% Displays the Graph screen.
8& Sets parameters for the Table
screen.
8' Displays the Table screen.
¥5
¥6
¥7
These keys let you edit entered
information by performing a cut,
copy, or paste operation.
ODisplays the Apps desktop.
8 O With the Apps desktop off,
displays the FLASH
APPLICATIONS menu.
2a Switches between the last two
chosen Apps.

Getting Started 9
2¾ Turns the custom menu on and
off.
24 Converts measurement units.
¥ Designates a measurement unit.
0Deletes the character to the left
of the cursor (backspace).
8. Deletes the character to the
right of the cursor.
2/ Switches between insert and
overwrite modes.
2¯ Displays the MEMORY screen.
½Displays a list of commands.
2£ Recalls the contents of a
variable.
§Stores a value to a variable.
2G Displays the CHAR menu, which
lets you select Greek letters,
international accented
characters, and other special
characters..
2K • In full-screen mode, displays
the Apps desktop.
• In split-screen mode,
displays the full-screen view
of the active App.
• With the Apps desktop off,
displays the calculator Home
screen.
Key Command Description

10 Getting Started
Mode settings
Modes control how the TI-89 Titanium displays and interprets
information. All numbers, including elements of matrices and lists, are
displayed according to the current mode settings. When the TI-89
Titanium is turned off, the Constant Memory™ feature retains all of the
mode settings you have selected.
To view the TI-89 Titanium mode settings:
1. Press 3. Page 1 of the MODE dialog box appears.
2. Press „or …to display the modes listed on Page 2 or Page 3.
Note: Modes that are grayed out are available only if other required
mode settings are selected. For example, the Custom Units mode listed
on Page 3 is available only if the Unit System mode is set to CUSTOM.
Viewing mode settings
Press Result
3
ã„
…

Getting Started 11
Changing mode settings
Example: Change the Language mode setting to Spanish (Español).
Press Result
3
…
Scroll down to the Language
field.
D
Press B
and then press Duntil
3:Español is highlighted.
Note: Your menu list might
vary, depending on the
languages installed.
¸

12 Getting Started
To return the Language mode setting to English, repeat the steps,
selecting 1:English in the Language field.
Using the Catalog to access commands
Use the Catalog to access a list of TI-89 Titanium commands, including
functions, instructions, and user-defined programs. Commands are listed
alphabetically. Commands not beginning with a letter are found at the
end of the list (&, /, +, –, etc.).
The Catalog Help App includes details about each command.
Options not currently valid are grayed out. For example, the Flash Apps
(…) menu option is grayed out if no Flash applications are installed on
your TI-89 Titanium; the User-Defined ( †) menu option is grayed out if
you have not created a function or program.
Note: Typing a letter takes you to the first command in the list starting
with the same letter.
¸
Note: The previous open App
appears (in this example, the
calculator Home screen).
Press Result
½
(displays Built-in commands)
…
(displays Flash Apps
commands, if any)
Press Result

Getting Started 13
Select commands from the Catalog and insert them onto the calculator
Home screen entry line or paste them to other Apps, such as the
Y= Editor, Text Editor, or CellSheetApps.
Example: Insert the comDenom( command on the calculator Home
screen entry line.
Note: Before selecting a command, position the cursor where you want
the command to appear.
Pressing 2Dadvances the Catalog list one page at a time.
The status line displays any required and optional parameters for the
selected command. Optional parameters appear in square brackets.
Note: Pressing ƒalso displays the parameters for the selected
command.
†
(displays User-Defined
commands, if any)
Press Result
½ j C
2D
Then press Duntil the pointer
is at the comDenom( function.
¸
Press Result

14 Getting Started
To exit the Catalog without selecting a command, press N.
Calculator Home screen
The calculator Home screen is the starting point for math operations,
including executing instructions, evaluating expressions, and viewing
results.
To display the calculator Home screen, press 8".
You can also display the calculator Home screen from the Apps desktop
by highlighting the Home icon and pressing ¸.
ÊHistory area lists the entry/answer pairs entered.
ËTabs display menus for selecting lists of operations. Press ƒ, „, and
so on to display menus.
ÌResult of last entry is displayed here. (Note that results are not
displayed on the entry line.)
ÍStatus line shows the current state of the calculator.
ÎEntry line displays your current entry.
Selected
command
Command
parameters
Brackets [ ] indicate optional parameters
ÊË
Ï
Î
Í
Ì