Customer Ratings & Reviews

It was an excellent product. Make my mathematical calculations easier. I'm absolutely loving my TI-89!!!

Helped me get through school. All the cool engineers had one. Really the only reason i got it was for solving integrals during electrical engineering exams because by that point in school professors aren't trying to figure out if you can solve an integral. They care more about whether you can set it up properly abd give a correct answer. Gonna be honest, though, during my job if i had to solve an integral I'd just use wolfram alpha instead. I'd use my lightweight ti-36x pro on a normal basis. Works great, lightweight, and what I'm most familiar with because it's the best calculator you can use that's still usable on the national exams. Great for on the job calculations.

I had one for nearly 7 years before it broke, and had no problems during that time. This one is a replacement for it and I love it just as much. I am an engineering student in college and I would not have been able to get through the coursework without this calculator. It is intuitive to use, and very powerful with excellent battery life. This might be a little too much if you are just doing basic math classes so you would probably be better off saving your money, but if you are going into something math and science heavy, this calculator is worth every penny

It took a little searching to learn how to use this but you tube videos helped a lot. Made math homework so much easier. This thing does so much more than you would think. Awesome calculator.

This is the second one that i have bought for my daughter, she loves it and had it replaced only because someone else loved hers so much, they stole it!

She got this for a new class and says it's awesome. It blows away her old TI calculator. It's easy to use and works fast. Great battery life too.

Excellent quality, as always from TI. The most function-laden calculator that can still be used on ACT and SAT tests.

There is a lot of functionality in this calculstor, especially for individuals going through an alectrical engineering degree. But it doesn’t function like a standard calculator in a few ways. Once you get used to it, it’s ok, but can still be annoying when you just need a calculator. I still keepvanother calculator on hand for most of my math (TI 36X Pro) includijg imaginary numbers and polar values.

It can be a bit bulky compared to newer version like the inspire but it has many great functions. It takes some getting used to at first but once you know all the functioons its great!

I bought this calculator for my wife however she needed different one. Nonetheless, I have owned this calculator personally before and I would recommend to and claim it to be the best on the market for anyone studying or using math - basic Calculus or higher. It should be noted though that this calculator can not be used on the ACT or SAT.

This calculator works very well. I bought it for a AP Calculus class, and it works just like I want it to. Its graphing capabilities well exceeded my expectations. While it is slower and heavier than the N-Spire CAS, it is still a great calculator. You can get lots of useful applications too. I recommend it for anyone In high school.

I bought this calculator for a college class. It has been an awsome calculator. It is easy to learn, lots of you tube videos that help with any questions. Best Buy got it to me quickly so I could use it for a quiz. Made such a difference. Now able to get A's in my class.

My son purchased this calculator to use at college. It has all of the features he needed and he is very satisfied with it. We have purchased many TI products over the years and have always been happy with the quality and durability of their merchandise!

Got this calculator for my son, who is a math/computer science double major. He chose this calculator because of the features that have already been very useful in his classes. No issues with it so far. Calculator is not rechargeable, but the battery life is very good.

This is the standard for college level math. Durable and light. Easy to carry to class in your back pack.

Had this calculator and used for Calculus 1,2,&3. I had a tab break on the battery connector and had to replace after three years and purchased same model. Very happy with it and after I figured out the layout of the menus, it was very user friendly. It has more functions than I will probably ever use but will handle everything I need it to do.

I purchased this as a replacement for the same calculator because it does everything you could need for algebra and calculus. Just be careful if your taking this to a proctored test because it might not be allowed.

My son needed this for his AP Stats class. It suits the needs for the class but also despite it's many functions, it's a great calculator that's easy to understand and use. Highly recommend.

This calculator was required by my teacher for my pre calculus class I am taking in high school. It is a much needed toll worth every penny to help get me thru this class. Very happy with it

Gave this to my son for his SAT test and pre-cal. It works for him. We initially gave him a more advanced version but did not suit his needs as a junior student. It looks nice and well-built. I hope it lasts and he can use it till college. Very satisfied with this purchase.