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Dummy.190587
3.2 out of 10

Texas Instruments TI-86

Designed for college mathematics, engineering, and science, this Read more

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Reviews and Problems with Texas Instruments TI-86

Showing 1-10 of 154
Overall 10
10

Utility at its finest

Robert, Amazon
4 August 2014
  • Summary: It is a classic. I do not know why they discontinued the 85 & 86 series, but they are the most user friendly in my opinion. The 84 will get the job done, but not as well and the 89 is just not for me. I mostly do trig and some light algebra on this for work and it makes my life much easier. I went two years without one when my last one finally died and am so happy to have one again.
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Overall 10
10

Great buy

Blanko, Amazon
20 July 2014
  • Summary: I needed a replacement for my TI-86 that just died (after 16 years), and I found the same model on Amazon that works perfectly fine. The open parenthesis button is missing the paint and a few keys stick a little, but it was worth the purchase. I haven't tried the graph link yet, but I'm sure it works fine if I decide to replace my phone to play Tetris.
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Overall 10
10

Five Stars

Todd F heggenstaller, Amazon
11 July 2014
  • Summary: The Ti 86 was sold as used but was basically new with new batteries
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Overall 10
10

Five Stars

pantenor, Amazon
8 July 2014
  • Summary: It was a great buy for what I paid for it. I am happy with it.
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Overall 4
4.0

Quality problems!

kalekalekale, Amazon
12 May 2014
  • Summary: I gave this product a low rating for two reasons: 1) Several horizontal lines of pixels on the screen do not work. Given this, it is often difficult to see calculations. 2) I have had several power issues with it - it doesn't always turn on and I have to troubleshoot it to make it work. I didn't "hate it" because I only paid $25.00 for it. I suppose you do get what you pay for!
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Overall 6
6.0

Not exactly what I expected

S. Phillips, Amazon
25 April 2014
  • Summary: Because of the "stock" picture posted by Amazon (according to seller) I expected a cord with this item. I didn't get one. The seller explained to me that the picture he posted did not have a cord. But his description didn't say "does not come with a cord" like many of the other descriptions that I looked at. I was disappointed, but the calculator works fine.
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Overall 8
8.0

No plug

Patrick, Amazon
24 April 2014
  • Summary: Good over all. A little worn but works fine. Better if book of instructions came along for the ride. That to is okay because of online resources.
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Overall 4
4.0

uses batteries really fast

DAWN M STRONG, Amazon
13 April 2014
  • Summary: bought this used, so it didn't come with an adaptor, uses batteries very quickly, and constantly have to adjust the contrast during calculations. Directions were easy to find on you tube, and the seller was wonderful with trying to help us figure out the contrast problem, but without an adapter, it just burns batteries. Otherwise... its fine.
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Overall 10
10

Good shipping

Abelardo Guerra, Amazon
6 March 2014
  • Summary: I gave him a five cause it came with what i needed. what i dislike is not the calculater because ill just need it for one class. Id recommend this product to whoever needs any math college course.
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Overall 8
8.0

Great calculator but...

Garrett M. Dunbar, Amazon
23 January 2014
  • Summary: So I got this for my wife's college math class and it works great. My only problem is that the picture definitely show a transfer cord and I didn't get one. It doesn't describe whether or not one comes with the calculator in the description so I had assumed that it did. However, apparently I was wrong. 4 stars for no cable.
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