• 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

• Belkin F3U133-06 Pro Series Hi-Speed USB Cable (Six-Feet)
• Royal 85X Paper Shredder

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
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

Customer Rating:
Summary: Essential for Calculus
Comment: This is absolutely essential for anyone taking a Calculus class. This is especially true for later on, such as in the later half of Calc 2 and all of Calc 3. After learning how to manually evaluate integrals and differentiate, as you move on to higher level concepts the 89 titanium can be used to do these manual tasks for you, allowing you to focus on the new material and allow you to practice more without wasting time on repetitive evaluations. I love this thing, and would not take Calc and Physics without it.

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Customer Rating:
Summary: Great deal!!!
Comment: They were fast and was a lot cheaper than a lot of the other vendors. The product was used but in great shape just like they said it was. I would certainly buy from them again.

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Customer Rating:
Summary: Excellent Calculator
Comment: I bought this calculator for my grads math and engineering courses and it works perfect. There are some many features which make this probably the best calculator on the market. Yes, now TI launched the Nspire and Nspire CAS, but to be honest, those calculator are far away yet from the Ti-89 Titanium in one of the most important thing: support (programs, applications, etc). I'd wait at least two years to see if TI give more support for the Nspire series, meanwhile I think the Titanium is a powerful machine with advanced functions (numerical and symbolic) and a very decent memory for most of engineering applications.

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Customer Rating:
Summary: Great Calculator
Comment: I'm an engineering student, and this calculator is a MAJOR UPGRADE over a TI-83/TI-84. It can do so much more once you learn how to use it, and it has helped me on my calculus homework more times than I can count.

It is a must have for any engineering/science student.

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Customer Rating:
Summary: Highly Powerful, Versatile Graphing Utility
Comment: Before buying this TI-89 Titanium, I had been using a TI-86 (now discontinued) for about five or six years. I was hesitant to make the switch because I was so satisfied with my previous calculator, but was convinced of the 89's usefulness within the first week of using it.

The greatest improvement over the other lines of TI calculators (discluding the n-Spire series) is the Computer Algebra System (CAS). This comes in handy on a daily basis in my Physics and Calculus courses because it saves an unbelievable amount of time in grunt-work involving simplification of expressions and solving of equations. It is very easy to input equations manipulate variables with the way the menus are set up, and the system is quite fast and accurate.

Programming in the TI-89 is also streamlined as compared with the normal TI Calculator BASIC simply because of the added ability to pass arguments into programs and functions. Functions may also be defined in the homescreen and within the lines of a program.

As the built-in and downloadable features of this calculator are far too numerous for me to recount, I will say that they are all very easy to use, quick to learn, and useful in many different situations.

The only complaint I have about the calculator, in fact, has something to do with the CAS system and evaluating limits and such at infinity. Weird things can happen if you attempt to evaluate specific functions at infinity or differentiate or integrate specific equations. Because of this, you should verify that the calculator correctly evaluates or simplifies the type of equation or expression you enter. The errors in the system, however, are so few as to be considered negligible and will not be used on a daily basis anyway.

I highly recommend this calculator for anybody in any math or science class involving heavy usage of algebra or graphing. It is a very solid unit and can be used for many different purposes.

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