Customer Reviews

Texas Instruments TI-81 Graphing Calculator

5 star:		(3)
4 star:		(5)
3 star:		(3)
2 star:		(1)
1 star:		(2)

 

 

Actually, at first I was a hesitate to buy the ti-81. Finally, I had made the decision to buy it. I find that it's worth every penny. I love it. Trust me, this calculator can do almost everything like the ti-83, except that it doesn't have as much memory as the ti-83 and the ability to transfer info. However, I find that the ti-81 is every easy to use. Not bad at all!!

You get what you pay for here. I am a cheap college student, and I pay for a cheap calculator. It works wonderfully, but the only thing that is inconvenient for me is the memory this little thing has. If I want to look back to the last equation I put in, it doesn't remember it, unlike new calculators. But, hey, I am totally satisfied because I only needed it for one semester. It does a lot more than my little casio calculator too. To my knowledge it has the functions as a newer one that typical people might use(of course there are sweet programs from the new ones, but most don't use those functions anyway). It works well, especially for the price I paid. :)

I needed a good graphing calculator quick, and this one really does the job. It's just as good as the later models, don't waste your money on the more expensive ones. The batteries do go pretty quick though. I have to constantly adjust the contrast due to low battery power.

This graphing calculator is an outstanding bargain for the features that it possesses. The ability to perform so many mathematical tasks is always an added plus. I would highly recommend the purchase of this highly reasonally piece of electronic equipment1

If you need a graphing calculator for a calculas class this may do the trick but I recommend the TI-82r a higher model. This calculator did not have the features needed for my college class but it may be ok for a high school class. See what features you need and then buy it. The only good thing about it was you cant beat the price.

Bought this for my college math class. It works, but is nothing special. Also the screen is kind of hard to read.

Obviously it is way outclassed for advanced mathematics. But if you find a TI-81 in good condition, you won't find a better number cruncher friend. The keys are very tactile, solid and responsive, and the results come up fast. I got my TI-81 in 1992, and 19 years later, I still have it, and sans a few cosmetic quirks that come of aging, it still feels and works like new.

Picked this up for my kid that needed a graphing function calculator, this one was more than adequate for her college course. She isn't going into math or engineering so this does what she needs at a great price. Picked up from an Amazon reseller used.

bought the calculator used for a good price. it stopped working after 2 weeks. i emailed seller, no reply. oh well, lesson learned, never again. went to office depot and paid 5X the price, but at least it works

Well being in college I am really impressed on Amazon here, I mean it works well, I thought it was going to be really old at first, nope I found out just another amazon amazing price here.