| Texas Instruments TI-89 Titanium Graphing Calculator | 
 enlarge | List Price: $199.99
Buy New: $88.00
You Save: $111.99 (56%)
Buy New/Used/Refurbished from $88.00
Avg. Customer Rating:   (based on 177 reviews)
Category: CE
Author: Texas Instruments
Publisher: Texas Instruments
Studio: Texas Instruments
Brand: Texas Instruments
Label: Texas Instruments
Format: Cd
Color: BLACK
Media: Electronics
Autographed: 0
Memorabilia: 0
Number Of Items: 1
Shipping Weight (lbs): 3.5
Dimensions (in): 2.8 x 3.9 x 0.7
MPN: TI-89
Model: TI-89
UPC: 033317192038
EAN: 0490800100329
ASIN: B0001EMLZ2
Publication Date: 2004
Release Date: June 1, 2004
Availability: Usually ships in 1-2 business days
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| Features:
| • | Graphing calculator handles calculus, algebra, matrices, and statistical functions | | • | 188 KB RAM and 2.7 MB flash memory for speed; plenty of storage for functions, programs, data | | • | Large 100 x 160 pixel display for split-screen views | | • | USB on-the-go technology for file sharing with other calculators and connecting with PCs | | • | Backed by 1-year warranty |
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Product Description
Includes USB unit-to-unit cable, Connectivity Cable for other TI units and connection software, operating manual Doing complex calculations on a scientific calculator is much easier with the TI 89. Its large screen offers the ability to generate graphs that can illustrate your conclusions. It's especially helpful with statistic functions, such as regression analysis. The TI-89 Titanium includes all the built in functionality and power of the original TI-89. It has an increased amount of Flash ROM 500KB, quite powerful for a traditional handheld design. This is TI's most sophisticated calculator, with such features as 3D graphing, upgradable flash ROM, built-in assembly language programming, and a generous amount of user-available memory. It now includes a mini USB port. This portable symbolic, numeric, and graphing calculator is perfect for advanced mathematics and engineering applications for college and advanced coursework. Its built-in USB port makes data transfer ultra-convenient. Built-in Flash memory for archiving data(2.7MB) Finance tools, Organizer, Polynomial Root Finder, Simultaneous Equation Solver, and many more apps Fully upgradeable (electronically) through its Flash ROM chip (optional TI Graph-Link required) Computer Algebra System, differential equations, 2D-graphing and data analysis, 3D-graphing with rotations, linear algebra, interactive numeric solver, constants, unit conversions, statistical regressions Optional Assembler language Mathematical expressions appear on the display the same way as they are usually written in class or in published texts and academic journals StudyCards and Symbolic Math Guide for helping students learn more effectively Preloaded with Official AP Calculus exam review questions Built-in USB port for easy data transfer between handhelds - The TI Connect allows rapid data transfer to computers
Amazon.com Product Description
This advanced graphing calculator is packed with more features than you might know how to use. The TI-89 Titanium lets you perform the expected functions of an advanced model--basic math, algebra, calculus, graphs, matrices, and statistical functions--and do cool stuff like creating animations, graphing 3-D rotations, and plotting contours. Graphing functions include basic function graphing, parametric graphing, polar graphing, sequence graphing, 3-D graphing, and differential-equation graphing. Additionally, the TI-89 Titanium includes symbolic manipulation, constants and measurement units, statistics and data plots, a numeric solver, a text editor, programming capabilities, tables, a split-screen function, variable management, and the ability to link to other calculators or a computer. The TI-89 Titanium's flash technology allows you to upgrade to future software versions without having to continually invest in new calculators. The 188 KB of RAM, combined with an impressive 2.7 MB of flash memory (three times the memory of the TI-89), are more than sufficient for your stored functions, programs, and data, and add welcome speed to go with the TI's reliability. You can create custom menus or use the default menu. Another cool feature is the Program Editor, which gives you the ability to write custom applications.  The large LCD is adjustable to your environment and can be viewed clearly under a variety of lighting conditions. The calculator also comes with an input/output port and cable, letting you synch up with other TI-89s or TI-92s, as well as a USB port and cable. An attached, hard slide cover protects the calculator from getting knocked around in your backpack. The manual that ships with the TI-89 Titanium is a killer, presenting over 500 pages of clear, concise definitions, function explanations, examples, drawings, and appendices. It's divided into well-organized chapters that cover all the major features of the calculator. What's in the Box
The TI-89 Titanium, a hard sliding case, a silver oxide battery, a user's guide, an applications CD-ROM, a USB cable, a TI-link cable, and warranty information
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| Customer Reviews: Read 172 more reviews...
 Very good quality machine with good improvements over the TI-89 June 12, 2009
1 out of 1 found this review helpful
I have owned top of the line graphing and scientific calculators from TI, HP, Casio, Sharp, etc. Back when I was a student, TI's were very cheaply made and often broke quite easily. This machine, the TI-89, Titanium, is definitely not cheaply made and is definitely put together very well. It is also a good improvement over its predecessor, the TI-89 with more memory and with an improved keyboard and improved keyboard "feel" and a much better feature set, etc. The pros and cons as I see it are:
PROS:
1) It has all the standard and CAS (Computer Algebra SYstem) features that we have come to expect on such a machine, plus many nice very detailed and topic as well as course specific APPS that are already preloaded or can be added in electronically and quite simply from the TI website. The interface with a computer is fast and easy to set up.
2) It has a very nice calendar and note storage system for keeping track of coursework and daily workload assignments.
3) It is quite fast with a nice graphical interface and resultant plotting system. The resultant plots are high quality and with the many added features available for enhancement are very intuitive for the learning process.
4) The icon system for choosing where you want to be on the machine can also be converted to a much easier and quicker to navigate text-list system.
5) It has a nice and quite modern, curved body design that sits very nicely both on a desk or a table as well as in your hand.
6) It has a large amount of onboard main memory, plus additional Flash memory for tackling quite memory intensive problems.
CONS:
1) There is no SD card slot as on the HP50g.
2) Integrals are completed by a table look-up process and not by direct manipulation so very little insight can be found by students as to why the result appears the way it does. On the HP50g, in step by step mode, much insight can be gained by the manner in which the integrals are performed for example.
3) The algebraic operating system is the only choice available on this machine which usually requires many more keystrokes to do a complicated problem.
4) The available programming languages are quite limited on this machine as compared again to the HP50g.
5) Some functions that you would readily expect to be available with a single key press require instead at least two key presses, but usually with only a single shift key press first.
6) The color coding choices are not nearly as distinctive and easy to quickly recognize as on the HP50g.
7) As with the HP50g, it require multiple batteries plus a backup coin cell battery to save everything briefly when changing the main batteries.
8) TI should also impliment a fine backlight system for viewing the screen at low light levels, as recently included on the Casio FX-9860g Slim version for example.
 Great calculator June 12, 2009
0 out of 1 found this review helpful
Just what I was looking for. I had to borrow a freinds all last year, now I have one of my own at a great price too.
 Bad Key Input Design (sin, cos, tan) June 11, 2009
1 out of 2 found this review helpful
Very bad keyboard design, because is not like the ti-83, where you can press once to calculate sine, cosine, or tangent. On this calculator, they replace those three MAIN buttons for y,z,t. As a result if someone wants to calculate or graph sin (x), he must press the key "2nd" "Y", ridiculous pain in the neck.
But graphing, taking the derivatives, and integrating is way much faster than the TI Voyage 200. Also it has better documentation, the rest is the same operating system.
awesome calculator June 2, 2009
The TI-89 Titanium is a great calculator. I had a TI-83 plus silver edition in high school and upgraded to the TI-89 Titanium when I went off to college. I was a physics major and a math minor, so the calculator got a good workout. Five years later, I am now in graduate school still using my TI-89 Titanium. The only problem I've had with it is the battery on mine just broke. Its built in calculus tools and differential equation solver has definitely been a big help. The built in units and scientific constants have also been a huge help in doing unit analysis. I highly recommend this calculator, and I would definitely go out and buy another one if anything happened to mine.
Still the best, even with its shortcomings... May 15, 2009
While I actually agree with several points in the "one star" reviews of this calculator, they fail to provide an alternate calculator that has the universal acceptance and support enjoyed by the TI-89. Yes, the processor and memory could be faster... Yes, the display really should be on par with a Blackberry... Yes, the equation entry area could be larger... Is it sad that most hand held devices handily beat the TI-89 in terms of processing power, its display and ease of use? Definitely. Nonetheless, the TI-89 will continue to hold the "gold standard" position until we see a calculator on par with modern portable device technology. Even TI's latest creation, the Nspire, is a sorry excuse for an upgrade. That's why I give the TI-89 Titanium 5 stars as there does not yet exist a worthy competitor to it, even within the TI company itself.
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