Texas Instruments TI-86 Graphic Calculator

The condition of the calculator I received was just a little less than what I expected, but it was an okay buy nonetheless. The calculator's buttons are in good condition, the calculator itself is in good condition. For the most part, it works, and that's really all I care for.

The main problem is that there are a few horizontal lines missing in the bottom of the screen, and it cuts off half of any character in that line. A bit disappointing, because it's kind of hard to read the functions that always appear at the very bottom, but it's still not that bad.

Also, 4 of the 6 rubber tabs are missing on the calculator. But that's all the negatives. Everything else is fine.

The TI-86 is an excellent calculator. Features such as equation solver, interpolation function and unit conversion are real time savers. I am dismayed that TI has discontinued this model. After my 10 year old TI-86 suffered a fall and lost a portion of the screen I was pleased to be able to find one on E-Bay in "like new" condition for half the price of replacing it with a lesser available model.

Was never able to catch up with seller. I tried on several different occasions and the email of the seller was incorrect

This excellent calculator is a required tool for my daughter's Math Club and is used in their competitions. There is nothing we dislike about it.

I've seen many TI calculators, but the 86 is my favorite. Ya, the 89 has more features, but I find it confusing.

I have used casio, hp's and other graphing calculators but none compare to the Texas Instruments (TI) calculators. Most schools use the TI-83 now and they used to mostly all use the TI-86. Once you become familiar with a calculator more than likely you will not want to change. This device has gotten me through algebra 2, trig, calc and day to day life. Unlike the TI-85 this has a table function. This table function is easier to use than MS Excel so i bring out my handy calculator all the time. I had one TI-86 go bad on my recently but it has been in my book bag for over 6 years and felt the day to day grind. The graphing functions are quite similar to the rest of the ti-86. If you notice the screen changing and you need to continually change the resolution your battery may be going bad. A neat trick on these is also to hold enter when you turn it on and it will display low battery, this is not the ase but will freak out your friends. I never played gameboy much but the huge range of free downloaded games available for the calculator has been invaluable in boring classes. I actually sadly prefer this calculator over the original gameboy when it comes to gaming. You can cheaply buy a cable to connect this to your desktop and transfer files and games. Another tid bit of info is if you ever receive errors when graphing delete the defaults and it should work fine. It drives teachers crazy when they cannot find the problem when you most likely screwed around and messed with a setting. The next model up is the TI-89 and that has a HUGE learning curve(as well as price increase). Sometimes you will see a plus model and that just added extra memory. You can save more items and games. I don't see this as needed since i put 22 games and had plenty of space to work on this calculator. TO sum it up this is a solid calculator and one I hope to use for the next 10 years.

The TI-86 is the calculator to use in advanced math applications. After years of use, this calculator is 2nd only to TI's more advanced units, suck as, the TI-89.

In the world of Texas Instrument calculators, one prefers the type used from the beginning of complex math. I started out with the TI-82 calculator, and upgraded to the TI-86 in 1999. I have been using it ever since. I started in high school, and this calculator got me through engineering school. It has everything I need as an electrical engineer. This calculator does polar and rectangular computation, number systems computation (binary, decimal, octal, hexadecimal), and so much more. It really cut homework time in half until my final year and a half. It is easier to get used to than the newer generation TI's (like the TI-93). Many of my classmates preferred this model or the TI-89 for all of their needs. I even take it when I go shopping. When I have a lot to buy, I put in all of the prices, keep a running tally, and can see right away if I am staying on budget. Not only that, but sometimes the scanned prices are wrong, and I have actually had to use this calculator to go back and prove price discrepancies to a lazy manager who did not want to check for herself. I cannot say enough great comments about this calculator; but be aware. I know that TI makes some great calculators tailored to numerous application. This model is geared toward scientists and mathmeticians who will need the complex functions this calculator performs. If you need normal computations, and you do not forsee yourself going into the aforementioned fields of study, you should purchase a different kind of calculator. This calculator can be expensive, and it would be unfortunate to waste money.

The TI-86 is a fabulous calculator for college students taking engineering, calculus, or physics courses. It is the precursor to the TI-89, but many consider it to be the best calculator Texas Instruments ever produced. It is not as user friendly as the the TI-89, but once you have learned to operate all its functions, you will see that it can handle just about any college level mathematics. I highly recommend this calculator, but be warned there is a significant learning curve to use it to its full potential.

The product is really worth, I paid for.

Even the company stopped manufacturing this product, it is a good one of its kind...

Arrived a little later than I anticipated, but well worth it. The calculator works completely fine. Excellent buy.

Timely but the wrong product. They were willing to pay to ship it back but I just kept it because it was to much of a hassle. I was disappointed I didn't get what I paid for. Got a TI 83 Plus when I ordered a TI-86

I have used a TI-86 for years and for my business it is the only way to go. You can see your past four calculations, allowing you to save time and effort. This calculator has so many functions that I don't use but the ones that I do use are so valuable to me

-Dan

Product was in excellent condition as promised! This is my third TI-86 for my third child. The TI-86 is no longer available in stores, so I was happy to find one on ebay for a reasonable price, and in such great condition!

it a calculator the only reason i bought it was for college. they are way to expensive so i got mine for half on ebay

The TI-86 has an understandable manual/guidebook, especially compared to the ti-85 guidebook.

The feature I like the most about the TI-86 and TI-85 is the conversion feature where one can convert inches to feet, meters to yards, pounds to grams. etc. There are several other conversion categories included.

This is the second best calculator I have ever owned. It has an easy to use interface and all the bells and whistles to get you through your math class.

The calculator was purchased for my son to take to college, it was a required purchase because of it's ease of use and quality of product. I would recommend this product to others.

This calculator will take you from high school pre-algebra all the way to upper level mathematics. As a recent collge grad, I used this in every math class that I took (pre-cal, cal, logic, stats, etc.), and it met every need. When I graduated last year, I passed this calculator down to my little sister, who is in high school algebra. It is currently serving her well.

I think that this was a good purchase the product worked excatly like it was suppose to work. I have no complaints about the purchase

College alg. 1 and 2, simple, easy to use...get a cable, the usr manual is available in PDF from ti.com.

The Ti-86 is a very nice calculator. It has quite a few more useful functions that that of the Ti-83. The Ti-83 is a little easier to use. the buttons are labled much more clearly and you don't have to go through as many menues to do what you want. Other than that, I have loved my Ti-86

He was right on about the product he sold to me. I was kind of worried because I have never bought anything from ebay before. But it turned out to be a excellent deal and great transaction