Texas Instruments TI-89 Titanium Graphing Calculator
by Texas Instruments
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Category: CE
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Author: Texas InstrumentsManufacturer: Texas Instruments
Format: CD
Published: 1998
Platform: Linux, Mac OS 9 and below, Mac OS X, Macintosh, Windows
Model: TI-89
Color: BLACK
Product 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
Digital Cameras Photo Reviews of Texas Instruments TI-89 Titanium Graphing Calculator
Customer Review: The titanium choice!--well it kinda sounded like a good slogan...
Summary: 5 Stars
There isn't alot I can say about this calculator which hasn't been discussed by previous reviewers. I, like the majority of them, and probably you the reader, have an 83 and got into a calculus course, or calculus-intensive course, and realized that the 83 was no longer going to cut it. Well I got the 89 from amazon and since that day the 83 began to look more and more primitive...sigh...The 89 can factor, differentiate, integrate, sum, products, binomials, solve systems and matrix operations, etc. It can also graph in 3d, polar, or differential field (what you may have seen in the promo shots). It even has the option of exact or approximate answers. A very helpful option I've found is the stored units of measurement you can use in the cases where you need to work problems in physics, engineering or even chemistry. After about two months of use I'm still learning just how much this graphic utility has to offer, but the user-interface has long since become completely intuitive for me. But the buyer should beware if they are making the transition to this right before the final--its menu style interface takes a day or so to get used to, and the manual while long isn't as comprehensive or as clear as it could be, relying heavily on abbreviations. Perhaps the most frustrating thing to learn is the exact sequence various commands need to be entered in, in order to get to the graphing utility to something other than say TOO FEW ARGUMENTS or SYNTAX ERROR. (Using the onboard catalog of functions, gives you an entry guide at the bottom of the screen.)
What I didn't expect to use, but find very useful is the USB cable and software which allows me to upload screen shots, ie graphs, which I can then attach for homework and lab assignments when I dont have access to either Derive, Excel, or my mac's Grapher. It is also possible to download additional programs and apps but I can't see me, or most of the potential buyers, of this utility actually needing to do this. It can be programmed as well, but again I have hard time imagining when the need to do this would actually arise.
This graphing utiltity is a little larger than the 83-85 line (already bordering on the cartoonish) but it is significantly smaller than the 92 (with which it shares the exact same Derive software and which has a full-qwerty keyboard.) However, this is an altogether much more powerful device than the 83 and an equal to the more cumbersome 92. So its a good compromise.
One small question in the back of my mind is that with the advances in LCD screens particularly in cellphones why isn't possible to give this utility a better screen? If a device can be built which relays phone and text messages, has a 2mp camera, can stream video, has an MP3 player on it, and a backlit color screen capable of video playback, all in a space volumetrically equivalent to my wallet it seems like the 89, computing power and all, could be built significantly smaller and with a much nicer display. I realize that the market for graphing utilities is no where near as competitive nor as profit tempting to justify enormous outlays in r/d for enhancements, but you would think some of the technology could be licensed by TI for use in their future utilities. In a world of $200 textbooks an additional $50 or so for a tool like this is pretty insignificant. It's not too hard to imagine this thing having at least a backlit LCD, finer resolution (the 3d graphs are borderline useless), and a rechargeable battery.
As futuristic as this utility is compared to earlier ones, a quick comparison with my cell phone or my iPod, already nearly 3yr old, and the contrast looks like technology from two different century's. Well, I suppose they are in fact...
The utility, like all other TI, utilities is surprisingly well-built--the durability of these is a credit to TI, who with a market consisting entirely of lucrative bulk school contracts and parents supply-shopping for often careless students, could like textbooks publishers make them as cheaply as possible. I've only seen one of these 89 broken and it was only part of the screen: they are made impressively tough.
This rant of mine notwithstanding, as graphing utilities go the 89 is great; although I haven't used the Hewlett-Packards, I can say that the 89 is the standard I've encountered for all undergrad math and science courses. If you're intending to take advances courses in any of the latter you will probably have to buy one of these eventually; accepting the inevitable early you might as well become familiar with it as soon as possible.
Description of Texas Instruments TI-89 Titanium Graphing Calculator
The TI-89 Titanium lets you perform basic math, algebra, calculus, graphs, matrices, and statistical functions and 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 upgrading 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 stored functions, programs, and data, and add welcome speed to go with the TI's reliability. Create custom menus or use the default menu. Another 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 to 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. The manual that ships with the TI-89 Titanium presents 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.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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