Customer Reviews:
Showing reviews 11-15 of 202
 A great product October 10, 2009
Jon R (CT, USA)
First let me start off by saying this is probably overkill for algerbra and calc classes. If your on a budget, go with the TI-84. You'll also want to make sure your teacher/school will allow these on tests. They are very powerful, so some schools/teachers won't allow them.
That being said I think the best way to determin if you need this or the 84 is to compare them side by side:
The TI-89...
- CAS allows it to add variables (ie x + x will give you 2x)
- Much more advanced in terms of features (I could write a whole page about that)
- 3rd party app support allows you to download applications to add even more features.
- Faster than the TI-84
- Not allowed on some tests
- More expensive
- Very different from the TI-84, so there is a learning curve. Also for school if your teacher is not using it (they tend to use the 84s for Calc and Algerbra) they may not be able to help you with it.
The TI-84...
- Cheaper
- Commonly used by schools, along with the TI-83 (which has the same layout thus, instructions for the TI-83 will work on the 84 as well). Most algerbra and Calc teachers will be able to assist you with any problems.
- Allowed on almost any test
- Like the 89, it has great support for third party apps.
- Less advanced, so there is less of a learning curve.
- Lacks the advanced features of the 89
Both calculators will last you through you college/university years and possibly into your career. The question is do you need the extra features of the TI-89?
Gift from Papa and Nanny October 5, 2009
Carol A. Savage (Alabama)
1 out of 1 found this review helpful
In the words of my 20 year old grandson majoring in engineering at Alabama," Nanny this is the best birthday present I have ever gotten in my whole life."
great product, good price September 25, 2009
Douglas F. Mitchell (Chicopee, MA USA)
prompt delivery, great packaging, powerful calculator. Daughter, a high school senior taking calculus, took to it right away.
Amazon .com also has 3 training or practice books(Advanced Algebra, Statistics, Calculus) available for the TI-89 by Brendan Kelly that are excellent and expand on the the very good Texas Instruments manual that comes with the calculator.
this calculator rocks my socks September 23, 2009
Bobby (Podunk, Illinois)
this is a great calculator i believe it is the best calculator in the universe. i think it is smarter than albert einstein. it keeps a rockin me rockin me.
TI-89 Titanium September 19, 2009
Randall W. Lott Jr.
This product is very useful. I don't know of any other calculator or computer program for this price that can do the things that the 89 does. I recommend it. Leaps and bounds better than the TI-84+.
Showing reviews 11-15 of 202
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