Texas Instruments TI-92 Plus Graphic Calculator

I've had the TI-92 since 1997 while I was at college. This calculator can do it all. If you need to graph any 2d or 3d functions, it can do it. If you need to complete complex derivates or intergrals, no problem. This is a great tool for anyone looking to complete a degree in mathematics or engineering! It is very simple to use but can complete the most complex functions. It is a great buy for the money and even though the voyage 200 is the new model, the TI-92 is advanced enough to stay relavent for a long time.

I love that it has so much information. It does trig, algebra, chemistry, and many other things. Although I am not aloud to use it in my school because it is prohibited, I still think this person who sold it to me, has very high standards, and knows how to sell something good. I bought it becuase I was using my sisters calculator and she needed it for school again so I needed one, and although I ended up not being able to use it, I still think it was a wise purchase. Thank you.

I decided to buy it, because i needet it in my research. The calculator is excelent choice in that case because if it's extended mathematical functions as well as graphical possibilities. Thank you.

Like: A calculator that does everything.
Dislike: A calculator that does everything. Thus difficult to learn and become comfortable with. Purchase was not with the instruction manual. If you purchase I suggust getting this manual.
Hate: Unable to use in SAT and college exams since it has a keyboard feature.

first buy on ebay that i was scammed on..seller mis advertised item..would not reply to emails or ph calls.. left neg feedback.. all i could do...plus keep item i did not want ..

Great Item !! I A lot of sofwares could be down load from the internet . I love this item !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Item is the TI-92 (not Plus). Great calculator even without the Plus module. I did the turbo modification and calculation speed is now 3X normal. I bought this calculator (I have a TI-89 also) because it has the keyboard. Makes it a lot easier to enter programs and data.

This is absolutely the best calculator for going through calculus classes. The CAS is very intuitive. The calculator deals with different classes of data (lists, matrices, numbers) in a very systematic manner, so it's easy to type things in. Ergonomics of a 92plus are much better than that of the ti-89, having the full qwerty keyboard is an absolute must for a calculator with a cas. Instead of looking up commands in the menus, you can simply type them in on a dedicated keyboard. I like it more than voyage200, the keyboard has better feel (although voyage has more memory, and is much smaller, and overall is the same calculator). It's not the best calculator for the real world, as it is a little to cumbersome for number manipulations (an hp48 is still the king in that dept); but it is the best calculator for math classes.

The calculator I received does not work. It came with no booklet, or instructions. Very dissatisfied. A waste of my money!!!

I liked the calculator, however It was not as it was listed. Received a Texas Instruments TI-92 Graphic Calculator not a "Plus", as listed. Great calculator, came with booklet and is very useful in programming in equations and graphs. Not as flexible as the Plus model. Cannot add new software and doesn't has the same memory capabilities.

This a very powerfull calculator for using in an math class. Excellent match for ti-89 or newer by its big display.

I have tested one of these when a high school teacher had a class set that was retired. The model I was playing with was a standard TI-92, but with some tinkering and a small inexpensive chip, the calculator can be upgraded to a 92+ efficiently. No other TI calculator can be user-upgraded, and if someone was really talented, they could modify the module upgrade to be even higher yet.

Being obsolete to the TI-89 Titanium and Voyage 200 series calculators (and the nSpire, but lets not go there) I still recommend this particular model. The keys are not awkwardly shaped or placed like the Voyage, and easier to find than its TI-89 counterpart. Having polygon-based CAD system built in, you can quickly and easily draw shapes and vectors and find formulas in a pinch.

The thing is a beast, can take several drops before the main shell can pop off and the unit takes 4 AA batteries, lasting longer than it's 4AAA counterparts.

It lacks no features to its newer counterparts and the prettyprint WYSIWYG display makes keeping track of your formulas easily, so if you make a typo, you know right away.

I wish this model didn't become so obsolete, but for being over a decade old, its definitely good for those who are serious, or for those who just like programming 86K programming. And if you like calculator games, this one does them quite excellently, with greyscale dot matrix graphics and its processor excells for that.

If you can get one of these cheap, I recommend it, I am trying to find one myself so I can relive those days of toying with it, because its more fun to toy with this than it is to toy with my 89-Titanium.

My son sent me an e-mail from college telling me he needed a particular calculator for one of his math classes as he is a Math major with a Minor in Physics so the first place I went was Ebay and I found it and at the price I could afford. I was so pleased and my son tells me that "it is the BEAST" and he couldn't do without it now!

cool calculator, but possible little use. Can't really use it in exams so possibly unnecessary purchase. But it's still cool, and nice to have a calculator that does everything. As long as you have manual or have used ti-89, it's not that hard to learn.

Muy buen articulo, lo necesitaba para mi clase fue el mejor precio que encontre. Estube pendiente a varias pero esta fue la mejor

Thanks so much for all your fast respones and instructions! Need more sellers like you on E-bay! Attention all buyers, You are in Good Hands! WM

This calculator is amazing. The full keyboard allows much faster input of equations than the otherwise similar TI-89 models. Also, calculator seemed a bit faster with complex equation solving than a friends Ti-89 titanium. The large screen is also very nice.
Only downside is the size of the device. If that doesn't bother you (or if you like it like i do) then go for it, you won't be disappointed.

I purchased the TI-92 for my college calculus courses. I love the fact that you can graph and fully see three dimensional functions. The only thing it lacks are the text capabilities of the new TI-Voyager.

This is the far best calculator I could have imagined to purchase for a good price! I have used it for about 5 weeks now, and to my current level of mathematical understanding I could at best use only a small amount of this great calculators capacity! (IOW: It is probably far more advance that I ever would need a calculator to be!)

The only thing I so far, could want to improve is the display, with poor light conditions it is hard to read, but that is about the only thing I can complain about.

If you like me, plan to study a lot of science/physics/mathematics/etc, you cant go wrong with this machine! It is simply that good! :-) (but watch out, it is possible that some universities wont allow it on tests..)

(Here in Sweden, a calculator with 1/10 of the functions/options, would cost about 100 euro, that about 10% more than the cost of the TI-92 with shipping and tax!)

I decided to buy this item because it was a TI-92 Plus calculator. It was advertized as such. However, when I received the item it was a TI-92. The "Plus" was missing. Don't get me wrong, a TI-92 at the price a paid was a great deal and was not unhappy, but the description was wrong. When I returned to look at the posting, it had TI-92 Plus is some places and TI-92 in others. I guess I should have read more closely. All in all I am very pleased.

I liked it so I bought it, and it fulfilled what I thought it would be. It wasn't defective or anything. I did think that it was alot larger than what I had expected.

A calculator like this should cost a couple hundred dollars. Since these are discontinued they have been selling for very little ($50-$75). You cant even buy a new ti-83 for that cost (unless you're ebay shopping of course). This calculator does a lot of things, much more then I need yet. I hope to pursue higher math but until then this calculator is not living up to its potential at my house. It operates like a little computer rather than a calculator, granted it's slow when rendering 3-d graphs but it does it. I cant begin to explain its significant features but it does have many mathematic symbols and options that I have never been introduced to, I'm guessing that it does almost anything. Oh yes the screen resolution is much higher than the ti-84 that I use for my current math class which translates to clearer graphs; straighter lines and rounder curves. Great tool, worth every penny to those who could use it.
Two cons: It's quite large in size as compared with the ti-83 to ti-89.
It seems a little flimsy to me, the plastic backing that you have to remove to put the 4 AA batteries in wiggles around when completely closed. That backing is actually the entire back part of the calculator.

The TI-92 is the biggest calculator that I have seen in my life: imagine two DVD cases stacked on each other. Despite the size, the calculator offers all functions that one can imagine and new applications can be downloaded from a PC or Mac. If you need a good calculator, the TI-92 is well worth the investment. It is not, however a handy tool to carry around.