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Your cart is empty.4.4 out of 5 stars
- #69,315 in Office Products (See Top 100 in Office Products)
- #31 in Graphing Office Calculators
TI-89 TITANIUM - Black
Customer
Reviewed in the United Kingdom on May 1, 2024
Great item
PA
Reviewed in the United States on March 31, 2024
Excellent condition for been used, no complains.
Debra Gayer
Reviewed in the United States on October 13, 2024
Performed as it should
Alejandro
Reviewed in Spain on July 30, 2021
Lo he comprado de segunda mano y va muy bien. Lo uso para cálculos de navegación astronómica.
ranjit
Reviewed in the United Arab Emirates on February 5, 2020
I ordered ti-89 but I got tI-89 .I paid 1036 aed but I saw the price of TI-89 is 758 aed ..bit consfued.
Rodri Levy
Reviewed in the United States on September 17, 2019
The product is in good condition, comes with everything offered as said, and works fine until now, but I would still like them to offer it and a sell it with a manual on how to use it
Customer
Reviewed in the United States on November 13, 2019
This calculator is actually very good at the math part but the only thing that sucks is that right out if the box I got this, you can't select the glitched text and I'm sure others have had this issue but other than that, it's a great calculator if you could see what you're clicking
Ben
Reviewed in Canada on August 26, 2018
Fully programmable butWhen I bought it, the picture was differentIt was all blue.And more expensive than same product that are selling in amazon.ca
Cliente
Reviewed in Italy on August 11, 2017
È praticamente impossibile caricare dati nel portfolio con Windows 10 , per il resto svolge i calcoli alla perfezione anche se è molto complessa da capire
Logan K.
Reviewed in the United States on November 20, 2017
Amazing calculator. I needed it because my statics professor is too lazy to teach us how to do cross products and we are expected to use a calculator to do dot and cross products as well as to find unit vectors. If you know how to use this thing it is as good as Wolfram Alpha.
Roderick S.
Reviewed in the United States on December 21, 2016
I'm a recent high-school graduate currently attending college. I have used a TI-84C all throughout high-school which was a fairly simple calculator to use. Even though it wasn't necessary, I figured it was time to upgrade as college math was going to be harder. Although there was a bit of a learning curve, I feel that I have fully adjusted to this calculator.The product I received for the seller was used and had data from a previous user in it. This did not bother me, however. The only reason I took off a star was because it did not come with a usb cable. I had to go out and purchase my own.Overall, its a great deal for the price. I was lucky enough to purchase the product when it was super discounted, which made me very happy!
Diane L Wenrich
Reviewed in the United States on September 19, 2013
I bought this for my son to use in his calculus classes. He uses is daily and has spoken about its ease of function.The biggest stumbling block to this calculator is finding a driver for the interface between the calculator and his computer. The Ti 89 is built to interface with the ancient Windows 98 OS and since we are many generations beyond that here at the house, it took some time and some doing to connect the display feature to his computer for ease of viewing the graphing feature while doing his homework.Having conquered that problem (and none too soon because it was going back if it didn't happen), he is very pleased with it and would recommend it to others, especially those who are new to higher mathematics.
peterpalacios79
Reviewed in the United States on March 28, 2011
I haven't used the newer TI model...but if it doesn't do what the TI-89 does plus more then don't buy it. This TI-89 is like a mini-Matlab. I can design programs that act similar to electronic components and graph them so that I can get a feel at how to work with those electronic components before they arrive.By the way, for those who say that it's better to do math by yourself and without using a calculator...wait till you take a class in controls and then practice multiplying a 10x10 matrix by another 10x10 matrix, and then finding the canonical form of the result on paper and during a test. GOOD LUCK.
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