The TI-30 is perfect for anybody that wants a good calculator without graphing ...
585530
The TI-30 is perfect for anybody that wants a good calculator without graphing functions. It has every function you need for basic math.
2889822
On par with price/computing power hand-held non-graphing/non-programable calculators. I own several TI calculators including TI-81, TI-36X Solar and TI-89T. Other calculators in my collection include Casio fx-7500g, fx-115 and HP 48G. Looking at taking the PE exam and self-learn courses in engineering and math. Takes a day to go through the booklet examples for every calculator function. Easy peasy!
3174483
I love this calculator. I have one of the fancier ones but have never figured out how to subtract with it. So, I bought this for simplicity sake and it is great; numbers come up clear and are easy to read. I give this five stars...top notch
1540518
This is a great basic calculator. I use it when I have a test in math that we are not allowed to use graphing calculators on. It functions well, has a very long battery life, and it pretty cheap. I would suggest it to someone that cant use a graphing calculator or to someone who needs a scientific calculator but doesn't want to shell out a lot of money for a fancy graphing calculator.
208094
We finance types are a Victorian lot.  While we do make use of Excel, VBA, and all kinds of cool computer models, when it comes to a desktop calculator we tend to prefer the old-style adding machines with the thumb-sized buttons.

This is a very good calculator and recognizes the utility of being able to run a tape on numbers.  For you kids, that's what the printing thing is...it's a useful way to double check yourself when you're adding/subtracting a long string of numbers and you want to check what you entered against the source data.

There are enough functions here to keep most finance/accounting types handy.  The operation is surefooted and the machine itself is built solid.  My previous Canon lasted about fifteen years before I had to give it up, and I anticipate the 49DII to give me just as much service.  It's seriously always at my right hand when I'm at my desk.  It's a very good machine.
4736509
This is one of the best Calculators ever produced. The calculator is complex enough to do double integrals and graph them, but it has a simple display screen and is very easy to operate.
4176340
I have had my TI-84 Plus calculator since the first day of seventh grade. I am now in my first year of college. It works extremely well. There is honestly no difference in it's performance since I opened it till now, seven years later. From Algebra I to AP Calculus AB, I have used this calculator and it has been a tremendous help. The price is quite steep, yes, and I do remember that it was a bit of a struggle for my family to pay for it, but honestly, all these years later, I realize it was completely worth it. As long as you keep it well and put it in safe places, it won't wear down. I have changed the batteries about four times since I opened it. I have included a picture of my calculator now after over seven years of use.
1691108
This is a very nice improvement over the regular TI-84 Plus - the screen is much brighter and it even is a rechargeable calculator - no more batteries! You plug it in and once it shows a green light then it is full charged. I ordered this for my stats 2 class at my university, and I think it will work great! Even comes with a dummies guide! Thanks!
4942732
AHHHHH!!!!! PINK! The second I saw this new color screen + pink calculator, I was in love. I am a tutor and already have a TI-89 that is awesome (I purchased it as a freshman in high school 15 years ago and it still works perfectly). Even though I already had a perfectly functioning calculator, I just had to get this new one.
It has some great improvements and I am very happy I chose to buy it. The color + lit screen is SO GREAT. The dim-lit screen of older model calculators has always been annoying to me.
I can't say enough good about it. I use it for Algebra, Geometry, Algebra 2, Precal and Calculus. Completely efficient WHILE LOOKING AWESOME.

Just buy it.
1296082
Last TI I had and used was the TI-83 for high school. I had to buy a new one for college. LOVE the upgrade. The color screens when graphing really helps and the blue shell color is quite to look at. It does everything I need it to do!
552940
This is a great tool to quickly learn the ins and outs of the TI89.  I have the Titanium but this will work even for the plain old TI89.  Yes, you can read the manual and use TI's online resources but who has time for that?  If you are going to be using this for Calculus including differential equations etc this is the fastest way to get the most out of your device.  Excellent tool.  Another home run by MathTutorDVD.

NOTE:
Some of the lettering on the video showing the calculator screens seems hazy.  This is NOT because the video or its production is bad but because the screen resolution on the TI89 is abysmal.  In fact there are many complaints, especially by older folks like myself, who find reading the TI89 menus a royal pain.  But because the calculator does so much so well and  because TI has a lock on the calculator market the TI89 is used extensively in educational circles.
244769
It's clean, it has batteries in it (that work, and still do), and, best of all, it functions just as a calculator should. Thank you for the calculator, whomever you are, because I will use that for as long as I need it and pass it on to the next math victem, er, student who will need its guidance and graphing capabilities.
2918312
Very Nice calculator. Easy to work with. Keys for calculation stand out nicely against Blue background. Easy for a Senior Citizen to do sums with. And should my needs for Calculus or rigonometry arise, this will be up to the task

Best of all, it runs off of sunlight and no batteries are required. Happiness all around.
311793
I have been using a version of this Sharp calculator from early high school all the way up thru a Master's degree in Electrical Engineering and now as a professional - it rocks! For science/engineering students, there is none better. It is simple and will do everything you need (almost - see below). Forget about those cumbersome, expensive graphing calculators. Save some money and buy one of these bad boys instead. Graphing calculators are a waste of time - learn how to do it on paper. This calculator deserves 5 stars, but I can only give it 4 because they took away the conversion functions for hexadecimal, octal, and binary numbers - essential for computer science & electrical engineering students. What the heck! Where can I still buy the EL-506? Mine finally broke...
794281
The TI-89 Titanium is quite possibly the most efficient and versatile calculator ever made by TI. Loaded with a 12mhz processor, 2.5mb of memory, and an amazing 600kb+ of RAM, no other calculator can compare to it with a frame of its weight.

Oh...but the TI-84+ SE has a faster processor. Right?

Well, the TI-84+ SE DOES have a processor with a higher frequence...but, as it turns out, substance is valued over style.

In truth, the TI-84+ SE has a slower processor-while the frequence is slightly higher, the rate of display and access to the memory is much slower.

Of course, being the intelligent customer that you are, you already know that the TI-89 Titanium has a lot more advantages than other calculators...lighter frame (varies), lots of memory, 3D graphing, 16 preloaded apps (helps a hell of a lot), and...it can be used on the SAT.

What more can I say? If you want me to sum up my rant, then: the TI-89 Titanium is the best portable calculator out there. Take a look at the screenshots for some of the games on ticalc.org-are you convinced now?
2699780
Before this, I had a TI-84 Silver.  The TI-84 was nice, but lacking in some of the advanced features.  While the price of the TI-89 isn't light, it was definitely worth it.  The only real con I can think of is that the batteries tend to go fast.
3442044
The TI86 has treated me well thus far, much better than the time I would have had with the class recommended TI83. The menu system makes using the various functions such as nCr, Sum, dif1, etc. a breeze, plotting points is tolerable, and the problem solving system is adequately fast. One simply pulls up the correct menu, and as opposed to the TI83 which requires entering the full combination of menu commands to enter the function each time, the menu is opened and stays open for repeated use.

This calculator is generally used in the engineering field, and the learning curve is slightly steeper than the recommended TI83, but I personally prefer this tool in my studies.