Customer Reviews:
Showing reviews 16-20 of 202
 Too Advanced cause complication for simple Math September 12, 2009
Super Critique
1 out of 1 found this review helpful
I bought this TI-89 Titanium especially this semester for Statistics and Trig Classes I was pretty disappointed. Athough the calculator claims to be the best it can do anything below and above calculus..it May be, but IT IS NOT USER friendly. Small fonts, etc. Admit I'm struggle of how to use it, but with the too much extra stuff it can't really simpify simple math usage. So, I went and buy another TI, the 83 plus which gears more towards Statistics with tons of references everywhere to do Statistics. Even though, the TI-89T claims to do all Statistics and beyond it is Not Recommended. Not even Professors, College Math Lab, or on the web with experienced or references in know well of how to use it. From what I understand by a professor is, buy this calculator, only if you are in Calculus II and after. All the functions from the older TI-83/4 are not in the same position buttons, it's totally revamped. Since Trig do functions, transformation graphs, trig identity, the TI-89T is not allowed. In order to use this calculator you must know your math well and willing to learn a new set of operations, familar with TI software. Overall a calculator this powerful and price, it should be easy for beginner to advanced users at any level, but it is not, so I rated a 3-star. In addition to the lack of user friendly, manual are useless, and no references anywhere of how to use it for specific applications.
 TI-89 graphing calculator September 10, 2009
Roman Bespartochnyy
great product, fast delivery, everything that was in the description came in the package. I am very satisfied.
Really good product September 9, 2009
Kwame G. Wright
I really liked it it came in the mail fast. The order was very accurate! Thank you
A Beast. August 30, 2009
Eric Isbell (Kentucky, USA)
Quite simply, this calc. is a god-send. The TI-83 finally kicked the proverbial bucket, and the time had come to upgrade. What better choice than to go with than the 89? It does everything that is needed for the serious student of the sciences, and while it's geared towards the more technical degrees (EE's, ME's and physics), it has the ability to be any budding mathematicians dream. Texas Instruments, I applaud you.
Texas Instrument August 27, 2009
Kit Kat (Los Angeles, CA USA)
Purchase this product as a "gift", for a cousin overseas. The cousin reported that he really liked the gift and the product itself.
Showing reviews 16-20 of 202
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