Buy Cheap Texas Instruments TI-89 Titanium Graphing Calculator 
Buy Low Price From Here Now 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
Readmore Technical Details
- 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
See more technical details
"Texas Instrument" 2009-08-27
By Kit Kat (Los Angeles, CA USA)
Purchase this product as a "gift", for a cousin overseas. The cousin reported that he really liked the gift and the product itself.
"There are far better and cheaper options." 2009-08-17
By Herbert Powell (Detroit)
Many reviews have focused on what the calculator can do, but that's not all you should consider when buying something. Can something else do it better? Can something else do it cheaper? The answer to both of these questions is yes. There are several superior, and it gets better...FREE options available.
So you probably know what this thing can do if you've read the description or the other reviews, so I won't repeat that. You'll get no argument from me that this calculator can do quite a bit. But let's put things in perspective here. Did you know there's a free graphing calculator with a CAS called Geogebra that you can download? It will do almost any calculation the TI-89 will, it will graph everything (2D, not sure about 3D) with higher resolution, it will numerically and algebraically (if possible) calculate derivatives and integrals, and you can create and download interactive applets with it, making it excellent for classroom use. There are also several detailed sites and tutorials for it online, so learning how to use it is comparable to learning on a TI calculator. For the few things that a TI-89 can do and Geogebra can't, check out the new Wolfram Alpha site. Another free graphing calculator, among other things, with a CAS, including matrix algebra and curve fitting. There are many more similar programs or sites available, in particular there are several free 3D graphing programs available if the previous two sources are of no help there. You may find something completely different than the ones I mentioned, but the point is that they're out there and it seems that not many people know this.
Of course, if portability is your main concern and you don't have a laptop (an unlikely scenario nowadays), then a TI-89 is an option, but I can't think of any reason that a professional who needs a calculator would want this over some other choices. In particular, I don't know of any mathematician, engineer, or physicist who actually uses a portable graphing calculator. If they need quick calculations done, they'll use a scientific calculator or for more advanced needs, something like Mathematica or Maple, two programs that are far, far superior to this calculator.
This leaves the students and parents who are told that this calculator or something similar is a must-have, that it will be used throughout their entire career as a student. I'm a high school math teacher. These are not necessary. Sure, a calculator may be necessary at times but believe me, a scientific one will do just fine for the classroom. At home, use the freeware listed above.
Put simply, this was a great calculator a decade ago or even 5 years ago, but times have changed quickly and TI's graphing calculators and prices haven't.
"TI -89 Titanium Calculator" 2009-08-16
By M J Marut (Santa Clara, California)
The TI -89 Titanium Calculator is a powerful calculator for Science, Engineering and Mathematics Students at both undergraduate and graduate levels. It is a great tool for plotting graphs of functions which cannot easily be comprehended by many students.
With the appropriate cable, the calculator can be connected to computer for bigger and brighter display.
"Time saver for Algebra and great for calculas and Plane Trig" 2009-08-03
By steven clauer (Phoenix)
The functions are great and there is literally nothing this thing can't do. Interface is a bit difficult, it seems as thought they ran out of room. However, once you get used to it, the calculator is indispensable. It rationalizes radicals automatically, finds derivatives and ati-derivatives. Great for checking your answers!!!!! *wink wink*
"Solid calculator" 2009-07-15
By Rishi Agrawal (San Diego, CA)
This calculator has been a solid upgrade from the TI-83 for me. It takes a bit to get used to, not something you'd want to buy the day before a test. After you get used to it, the interface makes sense and is much more useful then what was used in the TI-83. It's great that you can download programs too, which greatly expands the calculator's functionality. Aside from the grips on the outside, the calculator build quality has been pretty great after 4 years. None of the buttons have faded and the screen pixels remain intact.
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Product Description
An enhanced version of the TI-84 Plus graphic calculator, the new TI-84 Plus offers a built-in USB port, 3x the memory of the previous version, many preloaded Apps, an improved display, and more! Because the new TI-84 Plus is 100% keystroke-for-keystroke compatible with the TI-84 Plus, integrating it into your classroom will be easy! This new version allows students to share their work by connecting their TI-84 Plus to any TI presentation tools for the whole class to see, fostering a collaborative learning environment. Plus, a built-in USB port makes data transfer to your computer and between handhelds easier than ever. High-contrast display
bought the calculator for a college intermediate algebra class and have just started using all the neat features this calculator offers. Would recomend to anyone taking a class where graphing calculator is needed.
The kid that I got this for used it for his SATs and he said that it works well and had no problems with it. Super product that he recommends!
i am sorry i ever bought this items, first it was misleading it says it was a calculator days later when i was to get it in the mail the seller post it a message saying it was a CDand it is all i got a CD. that is wrong. i wrote to the seller and never got a response. i am still waiting for the seller to at least admit that he was wrong and give me the money back.
i hope this does not happend to any one else
I got this after my very old TI-83 Plus died. I really enjoy how all the buttons are the same as the TI-83 Plus so I already know where all the functions are. Also, the increased memory and ability to connect to your computer with a USB makes it much better than the previous version.
My daughter needed a calculator for Algebra II and I immediately went on-line to Amazon.com to check out prices (I am unemployed and need to save every penny for bills). We got a steal for a TI-84 Plus Graphing Calculator and it looks and functions brand new.
received a new ti84+ with all cables, bought calculator for hs student, great product at a good price, and received product in 4 days.
I already had a TI-84 Plus Calculator but the screen broke, because I slammed my bookbag down. But it's the best calculator around and I recommend it for students taking Person Finance, and higher math classes.
Just what my son needed for school. Thanks for the quick delivery, it has made high school a little easier.
This product contains good manual itself, so you don't need to buy another book to learn how to use it. I didn't realize this so I bought a "useless" manual.
Bought this for my 14 year old daughter, as it was required by her Freshman math class. It does all she needs it to do, and her teacher indicates that it should serve her well through all 4 years of high school math.
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About Texas Instruments TI-84 Plus Graphing Calculator detail
- Color: BLACK
- Brand: Texas Instruments
- Model: TI-84 PLUS
- Format: CD
- Number of items: 1
- Dimensions: .49" h x 3.94" w x 3.05" l, 4.08 pounds
Features
- Graphing calculator handles calculus, engineering, trigonometric, and financial functions
- USB on-the-go technology for file sharing with other calculators and connecting to PCs
- 11 apps preloaded
- Displays graphs and tables on split screen to trace graph while scrolling through table values
- Backed by 1-year warranty
Read more Texas Instruments TI-84 Plus Graphing Calculator
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Product Description
A calculator for science, math, algebra, trigonometry, statistics. 2-Line Display, 5 Memories Enter/delete/insert/edit individual statistical data elements Trig functions in degrees and radians Fractions and Fraction/Decimal conversions Degrees, Minutes, Seconds (for time calculations) Decimal degree conversions Common natural logarithms Reciprocals and Factorials Universal Powers and Roots Polar/Rectangular conversions Menus User-friendly keyboard with durable, plastic keys Protective calculator shield
I'm in college and couldn't afford buying a TI-87? or 93? (can't remember what is what) but anyways, this does the job. I'll eventually end up buying the more expensive calculators but in the mean time- I use this calculator every other day and it holds up well. I strongly recommend this product for a high school student or a beginning college student. Otherwise, if you have the extra cash, you should just invest in the more expensive texas instrument calculator to save you from having to buy two calculators!
Well, it's a scientific calculator some of my classes required. It does scientific functions and stuff, has solar power... really it's just an everyday calculator, not much to say, but it works just fine.
This is an ok calculator: it does the job, has a reasonably good feature set, and reasonably good display. The buttons feel cheap and don't always respond; the cover is a piece of junk and has never properly locked in place. This is an inexpensive calculator and that is reflected in the quality of the components. If you need a calculator for occasional use, this one will do fine; if you want a calculator that you will like using regularly or for many years, look elsewhere.
The calculator is fine, but I would not recommend it to anyone used to TI graphing calculators with many more lines of text input and output visible. Only having two lines is a disappointment, and makes keeping track of longer computations more difficult.
9.99, what can you expect? In fact, this calculator has more functions than I first thought and it works fine.
I have order this calculater a while ago. I was mad that the price of shipping is not clear. Moreover, I have recieved this item a week later than it supposed to be diliver. Therefore, I wrote a letter to the customer service. They reply me right the way with a full refund on the shipping. I recived the item with good quality eventually.
First of all: I own a bunch of different calculators from the TI line,the TI-30, the TI-84, TI-89, and I owned a TI-83 at one point.
Ok, this calculator, the TI-30X IIS works, but I have an issue with the buttons.
The keys feel sticky almost.
Some times you push them, but the number doesn't register. You have to press with exactly the right amount of force to get it to register. And the tolerance for that force is very small. If you press down just a tiny bit to hard, or use just a tiny bit less force, the key-press doesn't register.
That said, the calculator works, and it has two lines of text.
The only reason I got this calculator was that I needed it for General Chemistry.
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Update: TI just released the TI-30XS MultiView Calculator for a similar price and it is much, much better. The buttons work great and they've also improved on a lot of other features.
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I bought this calculator to take the FE exam. There are only a handful of approved calculators and so I chose this for the following reasons:
- Two line display
- I've been using a TI-83 Plus for almost 10 years and I thought that this would be easy to learn
- Solar - don't have to worry about batteries
- Inexpensive
I've been sorely disappointed with this calculator. The buttons are horrible! What good is a calculator if I can't type the information correctly? Also, the case is awkward and flimsy. Don't expect the same type of quality that you get with the graphic calculators, TI cut corners on this one. I don't recommend this calculator if you are going to be under tight time constraints because you will waste a lot of time fixing typing errors.
I've also had issues with the transition to a non-graphing calculator. It hasn't been as straight forward as I was hoping and the documentation is awful. I figure, if I'm going to have to learn a new system, I might as well go with a better calculator. I will likely go with the HP 33S Scientific Calculator (F2216A) and save this one as a backup for the exam.
I bought this calculator specifically because it was the scientific calculator approved for use on SOA/CAS actuarial exams. It has some nice features for such an inexpensive calculator. Its two line display is nice for keeping track of what you've done and avoiding typos, and it can do some fairly heavy duty statistics. It's also very easy to chain commands together.
I have almost never used this calculator outside of exams. Everything it does well is faster and easier with a graphing calculator (I've regularly used a TI-82 and a TI-84 Plus).
I've had to buy 2 of these because the first one I bought broke after about three months. The second has worked fine for over two years.
DO NOT BUY THIS GARBAGE.
I am not a very fast typer but this calculator is too slow and does not accept the keystrokes if not enough time is given in-between the key strokes.
Hence I almost always mess up the calculation.
About Texas Instruments TI-30X IIS 2-Line Scientific Calculator detail
- Brand: Texas Instruments
- Model: TI30XIIS
- Number of items: 1
- Dimensions: .50" h x 2.60" w x 5.10" l, .30 pounds
Features
- Robust, professional-grade scientific calculator
- 2-line display shows entry and calculated result at same time
- Easily handles 1 and 2 variable statistical calculations
- Three angle modes (degrees, radians, and grads) and scientific and engineering notation modes
- 1-year limited warranty
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