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5stars
1315ratings4stars
205ratings3stars
56ratings2stars
25ratings1star
93ratings
901 reviews
Nice item- as we used to say: "Works fine, lasts a long time".
I got it for my 13 yo grandson as his school required them to get a TI-83+ or TI-84 for one of their courses. So far this one has performed as expected. Texas Instruments does a good job of supporting these products, and I downloaded a lot of documentation in PDF format, and burned it to CD-ROM for him- including the 827page guidebook!!
It's a rather complicated device, a computer actually that is based on the ZILOG Z-80 8 bit processor which was used in several of the early 8 bit computers, like the KAYRO back in the '80s. The processor is embedded in a lot of 'microprocessor controlled' devices today so it is tried and true technology. He says it is doing the job for him and while it is not as fancy as the newer TI calculators, with color displays, you have to remember, mathematics really doesn't require HD color to be effective-- this I know as I still do some calculating on my old trusty slide rule, but then again, I am just a little bit old-fashion!!! Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: fogel1986
Cheap
The screen does work as noted but powers on strange because of the button pattern needed to hold to turn it in and the wrinkled or damaged ribbon cable to the screen is bad because of the various screen effects. But the screen effect was not noted clearly in the description and only said that it has a boot defect and you had to hold two buttons to turn it on and it doesn't turn on normally. But the description said nothing about a screen issue. Overall I'm still going to keep it to repair. Read full review
Verified purchase: Yes • Sold by: tracl3882
TI-83 - the go-to calculator, and cheaper than the TI-84
Ti-83 - what can I say? This is the low-cost equivalent of the TI-84 -- all the features, just a little slower and a LOT cheaper. The TI-83/84 has been the go-to calculator for High School and college for last twenty years, and it continues to provide incredible power & value to math courses. A great machine! 'Nuff said.Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: musthavegear
Great for algebra 1 students
I'm a 9th grader in an algebra 1 class that requires a TI-83/84. I first planned on buying a new one, but I found out it costs more than $100. My second plan was to hop on eBay and search for a used/refurbished one. When I saw this amazing deal for a refurbished TI-83 I had my doubts but after reading the reviews and looking at the images I bought it for a total of $27. I'm pleased, it may not be in the best condition but it's just a calculator that I probably won't even use after a few years. Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: alexrapp
Great.... For 1999
This calculator is good for doing very basic things, but it lacks the capability of the 20 dollar basic Casio fx-300ES that I got last year. The graphing functionality works very well, but only functions work (not relations E.X. 1/(x^2+x+2))
It cannot simplify radicals, it has no functionality for solving algebraic equations, so if you are taking Trig and you need it, it is a great choice, but for anything more than that, it is inadequate.Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: brad_hiat
Lightweight, nice cover, tons of features, very helpful!
Great calculator once you learn how to use it! The TI-83 and TI-84 are the two best graphic/statistics/math/etc. calculators on the market, in my opinion. The only thing I think they need to improve upon is the screen size.Read full review
Verified purchase: Yes • Condition: new • Sold by: highoctane76
Clearly a good option vs. buying a new one
Clearly a good option vs. buying a new one only to be used for a couple of months* for my daughter's Prep Math class. It is working fine so far. Only 2 details that we can live with given *:
- Screen had a shadow of some sort in the middle (due to usage clearly)
- Calculator had many names written and carved on the back
So picture shown I assume (1) are for a general used calculators and not the specific one you are buying which is somehow misleading in my opinion. Now I assume (2) that it is better option for seller to use general picture rather than take individual pictures.
jrRead full review
Verified purchase: Yes • Condition: pre-owned • Sold by: epicdealsonly
Excellent Condition (Like Brand New)
The calculator was in great condition. It looked as if no one had ever used it. It was bought for my daughter's math class. Although she has not had to use it in class yet. I know that it will be a great tool when the time comes. Thank you very much.Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: rgforfun
Ti83+ calc. Review 2019
This calculator was for my stats10 class. Im glad i got it for a really cheap cost and the quality passing my expectations. Even though it didnt come with the case, the plastic wrap it came in might be better. Batteries included did and will help me out too. Overall good first-time ebay purchase. Works and functions. Cant wait to use it and compute problems! Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: pdb519
Pretty good
Just got my calculator, it's just as it is in the photos, the only misleading thing is that it's actually a TI-83 not TI-83 Plus, a minor mistake. There's no major difference as it would work great for any math class. Can't wait to use it. Thanks!Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: maven_technologies