Texas Instruments TI-73 Explorer Quick start guide

11/1/01 © 2001 Texas Instruments
TI-73 / TI-83 Plus
Number Curiosities
How To…
Start and Quit the Application
Use the Application
Delete the Application
More Information
Error Recovery
TI

TI-73 / TI-83 Plus Number Curiosities Page 2
Important Information
Texas Instruments makes no warranty, either expressed 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
any applicable purchase price of this item or material. Moreover,
Texas Instruments shall not be liable for any claim of any kind
whatsoever against the use of these materials by any other
party.
Graphing product applications (Apps) are licensed. See the
terms of the license agreement for this product.
TI-GRAPH LINK and TI Connect are trademarks of Texas
Instruments. All other trademarks are the property of their
respective owners.

TI-73 / TI-83 Plus Number Curiosities Page 3
What is the Number Curiosities Application?
This application illustrates and animates interesting and fun facts
about numbers from 0 through 25. The application was inspired,
in part, by the book, Numbers: Facts, Figures, and Fiction, by
Richard Phillips.
The Number Curiosities application introduces students to four
types of information about numbers from 0-25:
•Whether the numbers are prime or composite, and how they
are factored
•Geometric facts
•Number sentences
•Real world facts
The Number Curiosities application is a concept application that
TI wants to share with our customers, educators, and students
before the product definition and testing are complete. It is an
alpha software version, and as such, it may contain
imperfections, or the coding may be incomplete.
TI invites your feedback concerning the functionality and
educational value of the Number Curiosities application. Please
send your comments and questions to [email protected].

TI-73 / TI-83 Plus Number Curiosities Page 4
What You Need
Note
In this user guide, any information that pertains to the TI-83 Plus also
pertains to the TI-83 Plus Silver Edition, unless otherwise noted.
Hardware and software
Notes
TI-73 with version 1.50 or higher of the
Graph Explorer software
—or—
TI-83 Plus or TI-83 Plus Silver Edition
with version 1.13 or higher of the
operating system software
You can download a free copy of the
latest Graph Explorer or operating
system software from
education.ti.com/softwareupdates.
Follow the link to Operating Systems.
Computer with Windows®
95/98/2000/XP, Windows NT®, or
Apple® Mac® OS 7.1 or higher installed
TI-GRAPH LINK™ computer-to-
calculator cable
If you do not have this cable, call your
distributor, or order the cable from
TI's online store.
TI-GRAPH LINK software that is
compatible with the TI-73 or the
TI-83 Plus
—or—
TI™ Connect software (available at the
end of 2001). TI Connect works with all
supported models of TI graphing
calculators.
You can download free copies of
TI-GRAPH LINK and TI Connect from
education.ti.com/softwareupdates.
Follow the link to Connectivity
Software.

TI-73 / TI-83 Plus Number Curiosities Page 5
Where to Find Installation Instructions
Detailed instructions on installing this and other applications are
available at education.ti.com/guides. Follow the link to Flash
installation instructions.
Getting Help
The instructions in this guidebook are only for this application. If
you need help using the TI-73 or TI-83 Plus, refer to its
comprehensive guidebook at education.ti.com/guides.

TI-73 / TI-83 Plus Number Curiosities Page 6
Starting and Quitting the Application
Starting the Application
1. Press
nto display the list of applications on your
calculator.
2. Select
NumCurio. The application’s information screen is
displayed.
3. Press any key to continue. The acknowledgement screen is
displayed.
4. Press any key to continue. The developer’s screen is
displayed.
5. Press any key to continue. The application’s main screen is
displayed.
Note
The first time you run the application, 0 is highlighted and its
factorization information is displayed. When you run the
application subsequent times, the last number and fact you
viewed is displayed.
Quitting the Application
To quit the application, press \.

TI-73 / TI-83 Plus Number Curiosities Page 7
Navigating
•To move the cursor to a number on the number line, use the
arrow keys (_and a) or the X= option.
•To select an option to display information about the number,
press the graphing key directly below the option.
•If you press awhile the cursor is on 25, a message is
displayed that encourages you to search for other number
facts. Press any key to move the cursor to 0.
RSTUV
Press a graphing key
to select one of these
options. For example,
press Uto select
NUM.

TI-73 / TI-83 Plus Number Curiosities Page 8
Option
Description
X= allows you to move the cursor quickly to
another number.
Select X=, and then enter a number. If the
number has one digit, press ¯to move the
cursor to the number. If the number has two
digits, the cursor automatically moves to the
number after you enter the second digit.
The same type of information (FAC, GEOM,
NUM, WOW) that was displayed for the previous
number is displayed for the new number.
FAC displays the factorization of the number and
whether the number is prime or composite.
A prime number is a whole number greater than 1
that has exactly two factors, itself and 1.
A composite number is a whole number that has
more than two whole-number factors.
GEOM displays a geometric fact about the
number.

TI-73 / TI-83 Plus Number Curiosities Page 9
Option
Description
NUM displays one or more number sentences
about the number.
WOW displays a real-world fact about the
number.

TI-73 / TI-83 Plus Number Curiosities Page 10
Deleting the Application from Your Calculator
TI-73
1. Press
\/to display the MEMORY menu.
2. Select
Delete.
3. Select
Apps.
4. Move the cursor to NumCurio.
5. Press
¯. A confirmation message is displayed.
6. Select
Yes to delete the application.
TI-83 Plus
1. Press
\/to display the MEMORY menu.
2. Select
Mem Mgmt/Del.
3. Select
Apps.
4. Move the cursor to NumCurio.
5. Press
^. A confirmation message is displayed.
6. Select
Yes to delete the application.

TI-73 / TI-83 Plus Number Curiosities Page 11
Installation Error Messages
Low Battery
Do not attempt to download a Flash application if the low-battery
message appears on the home screen. Low battery indication is
shown on the initial screen. If you receive this error during an
installation, change the batteries before trying again.
Invalid Signature or Certificate
Either this calculator does not have a certificate to run the
application, or electrical interference caused a link to fail. Try to
install the application again.
Error in Xmit
This problem is usually associated with the unit-to-unit cable and
its connection between the calculators. Make sure the cable is
firmly inserted in the link port of each calculator.

TI-73 / TI-83 Plus Number Curiosities Page 12
Link Transmission Error
Thiserror indicates that the TI-GRAPHLINK™ software or
TI™ Connect software isunable to communicate with the
calculator. The problem is usually associated with the
TI-GRAPH LINK cable and its connection to the calculator or to
the computer.
•Make sure the cable is firmly inserted in the calculator link
port and the computer.
•Verify that the correct cable type is selected in the software
link settings.
•Verify that the correct communications port (Com Port) is
selected in the software link settings.
If this does not correct the problem, try a different
TI-GRAPH LINK cable and reboot your computer.

TI-73 / TI-83 Plus Number Curiosities Page 13
Archive Full
This error occurs when the TI-83 Plus does not have sufficient
memory for the application. In order to make room for another
application, you must delete an application or archived variables
from the TI-83 Plus. Before you delete an application from the
TI-83 Plus, you can save it on your computer using
TI-GRAPH LINK™ software for the TI-83 Plus or TI™ Connect
software. You can reload it to the TI-83 Plus later using
TI-GRAPH LINK software or TI Connect software.
Memory Error
This error occurs when the TI-73 does not have sufficient
memory for the application. In order to make room for another
application, you must delete an application from the TI-73.
Before you delete an application from the TI-73, you can save it
on your computer using TI-GRAPHLINKsoftware for the TI-73
or TIConnect software. You can reload it to the TI-73 later
using TI-GRAPH LINK software or TI Connect software.
Other Errors
See Appendix B in the TI-73 manual or pages B-6 through B-10
in the TI-83 Plus manual for information about the specific error.

TI-73 / TI-83 Plus Number Curiosities Page 14
Checking Version Numbers and Free Space
Verify Operating System Version and ID Number
The Number Curiosities application is compatible with TI-73
Graph Explorer software version 1.50 and higher or the
TI-83 Plus operating system 1.13 and higher.
To verify your operating system version number:
1. From the home screen, press \/.
2. Select
ABOUT.
The operating system version number is displayed below the
product name and has the format x.yy. The ID number appears
on the line below the product number.

TI-73 / TI-83 Plus Number Curiosities Page 15
Verify Flash Application Version
1. Press
n.
2. Select
NumCurio. The information screen is displayed.
The version number appears on the information screen below
the application name.
Check Amount of Flash Application Free Space
TI-73
1. From the home screen, press \/.
2. Select Check Apps.
The Number Curiosities application requires one free space to
load the application.
For more information about memory and memory management,
refer to the TI-73 manual.

TI-73 / TI-83 Plus Number Curiosities Page 16
TI-83 Plus
1. From the home screen, press \/.
2. Select Mem Mgmt/Del.
The Number Curiosities application requires at least 16,535
bytes of ARC FREE (Flash), or one space, to load the
application.
For more information about memory and memory management,
refer to the TI-83 Plus manual.

TI-73 / TI-83 Plus Number Curiosities Page 17
Works Cited
Phillips, Richard. 1994. Numbers: Facts, Figures, Fiction.
Cambridge: Cambridge University Press.

TI-73 / TI-83 Plus Number Curiosities Page 18
CONCEPT APPLICATION EVALUATION
LICENSE AGREEMENT
(Including Preview, Prototype, and Demo Apps)
BY DOWNLOADING THE SOFTWARE AND/OR DOCUMENTATION YOU AGREE TO ABIDE BY
THE FOLLOWING PROVISIONS.
1. LICENSE: Texas Instruments Incorporated (“TI”) grants you a license to use and copy the
software program(s) (“License Materials”) contained on this diskette/CD/web site. You, and any
subsequent user, may only use the Licensed Materials on Texas Instruments calculator
products.
2. RESTRICTIONS: You may not reverse-assemble or reverse-compile the Licensed Materials.
You may not sell, rent, or lease copies that you make.
3. COPYRIGHT: The Licensed Materials are copyrighted by TI or the third party licensor. Licensee
agrees that he/she will not delete the copyright notice, trademarks or protective notices from the
Licensed Materials or copies made during installation.
4. SUPPORT: The Licensed Materials are provided by TI with the understanding that only limited
support for this concept application may be available from TI.
5. TESTING: Licensee acknowledges that he/she understands that TI has not in all cases
subjected concept applications to rigorous testing and that the concept application may cause
problems with his/her calculator, including its use in any kind of shared environment. Further, it
is possible for a concept application to cause calculator crashes or lock ups which may be
difficult to recover from. You are advised that use of the concept application is AT YOUR OWN
RISK.
6. WARRANTY: TI does not warrant that the Licensed Materials will be free from errors or will
meet your specific requirements.
THE LICENSED MATERIALS ARE MADE AVAILABLE “AS IS” TO LICENSEE.

TI-73 / TI-83 Plus Number Curiosities Page 19
7. LIMITATIONS: TI MAKES NO WARRANTY OR CONDITION, EITHER EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE
LICENSED MATERIALS.
IN NO EVENT SHALL TI, ANY THIRD PARTY LICENSOR, OR TI'S SUPPLIERS BE LIABLE
FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS,
LOSS OF USE OR DATA, OR INTERRUPTION OF BUSINESS, WHETHER THE ALLEGED
DAMAGES ARE LABELED IN TORT, CONTRACT OR INDEMNITY.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY.
8. RESTRICTED RIGHTS: The Licensed Materials are provided with Restricted Rights. Use,
duplication or disclosure by the United States Government is subject to restrictions as set forth
in subparagraph [c](1)(ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227-7013 or in subparagraph [c](1) and (2) of the Commercial Computer Software -
Restricted Rights at 48 CFR 52.227-19, as applicable.

TI-73 / TI-83 Plus Number Curiosities Page 20
Page Reference
This PDF document contains electronic bookmarks designed for easy on-
screen navigation. If you decide to print this document, please use the page
numbers below to find specific topics.
Important Information............................................................................................2
What is the Number Curiosities Application? .......................................................3
What You Need .................................................................................................... 4
Where to Find Installation Instructions .................................................................5
Getting Help..........................................................................................................5
Starting and Quitting the Application.....................................................................6
Navigating.............................................................................................................7
Deleting the Application from Your Calculator....................................................10
Installation Error Messages ................................................................................ 11
Checking Version Numbers and Free Space ..................................................... 14
Works Cited........................................................................................................17
CONCEPT APPLICATION EVALUATION LICENSE AGREEMENT .................18