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> Office > Office Machines > Calculators

Texas Instruments TI-89 Titanium Scientific Calculator

 
106 reviews
 
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Texas Instruments TI-89 Titanium Scientific Calculator
 
 
 
 
 
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Review Summary

Average Rating: 5.0
 
Based on 106 reviews
21
32
53
244
725
 
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Review List

Showing 11 - 20 of 106 Reviews

 
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8 out of 8 people found this review helpful.

Great Calculator but use with care...

Date of Review:  Oct 7, 2000
Review: The TI-89 is a super calculator -- beyond the fact that it will do symbolic manipulation, I love most its 'pretty print' feature that allows a student to view a problem much like it would be written in math class. Limits, radicals, derivatives, and...
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  5.0

by: BarbLocke
Recommended to buy: Yes

Pros
Symbolic manipulation, 'pretty print'
Cons
students' overrealiance on the...
 
10 out of 10 people found this review helpful.

Outstanding Calculator

Date of Review:  Jan 29, 2003
The Bottom Line: Would recommend to anyone needing a calculator with the TI-89s capabilities, though it is somewhat difficult to figure out.
Review: The TI-89 is certainly an amazing calculator. It has incredible capabilities. Very useful for calculus and physics, among other things. However, its complexity does make it difficult to figure out. The user manual is quite large and it would be very...
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  4.0

by: becky55
Recommended to buy: Yes

Pros
great display, incredible capabilities
Cons
difficult to figure out, poor...
 
6 out of 6 people found this review helpful.

The TI-89

Date of Review:  Sep 8, 2001
The Bottom Line: If you can master using this calculator youve mastered the hardest thing in the world. Its a great deal for its price. They should be charging more.
Review: Pros:
This is an amazing calculator. It has tons of features handy for any grade level. Also, with a graphlink it can contain an impressive library of highly complex games unlike any graphing calculator of its class. It shortcuts all highschool...
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  5.0

by: thepocky
Recommended to buy: Yes

Pros
Tons of great features, possibly best...
Cons
kinda expensive, can be confusing
 
3 out of 3 people found this review helpful.

Fantastic Calculator!!

Date of Review:  Mar 16, 2007
Review: I bought this calculator during college and still using it. The features in the calculator is just amazing. You are able to draw graph, integration, conversion etc etc.. it is durable as well. Dropped the calculator a couple of times but it is still...
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  5.0

by: hwkhuen
Recommended to buy: Yes

Pros
Loads of features yet still easy to use
Cons
4 AAA batteries.
 
16 out of 16 people found this review helpful.

WHILE IT'S NOT THE CHEAPEST OR THE EASIEST CALCULATOR, IT IS THE BEST.

Date of Review:  Jan 20, 2006
The Bottom Line: If you are going into upper level math classes and need the extra power, this is the calculator for you. Just be prepared to adjust to the new interface.
Review: As a sophomore, my high school splurged and purchased TI-92 graphing calculators for the lot of us. While coming from a TI-83 background made it difficult to use the new interface, I was amazed at the power. Solving algebraic equations, factoring,...
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  5.0

by: klb3284
Recommended to buy: Yes

Pros
Very powerful, 3-D graphing...
Cons
Steep learning curve, difficult to...
 
3 out of 3 people found this review helpful.

Far better than repeating a semester.

Date of Review:  Mar 3, 2004
Review: Recently I started my final semester of calculus. This device is my sole ally when facing things like R3-functions and partial derivatives. It takes much of the heat off of me and I rely on it heavily. Truthfully, it is hard to learn to use. I've...
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  5.0

by: daisycutter
Recommended to buy: Yes

Pros
So good it should be illegal.
Cons
Overkill for all but Math/Sci/Eng/etc...
 
5 out of 5 people found this review helpful.

Considering an 84+silver, get this instead!

Date of Review:  Jan 24, 2006
Review: I am in my first year of college and taking classes that are heavy in math. A fellow classmate has the 84+silver and we have compared the two. One major difference between them is what I believe is called pretty print. When we both punch in a long...
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  5.0

by: nayr1
Recommended to buy: Yes

Pros
Pretty print(very convenient), usb...
Cons
Difficult to learn how to run...
 
9 out of 10 people found this review helpful.

A product with excellent potential destroyed by profit-hungriness.

Date of Review:  Nov 12, 2001
The Bottom Line: If you don't need a manual, this is a five-star product. If you do, consider yourself deep-sixed from day one. Without good manuals, it's a Jungle out There.
Review: I have been satisfied with every aspect of this great CAS calculator; except, with the lack of a comprehensive manual and fully-capable link software and, the problems I have had that naturally follow from these surprisingly major faults in such an...
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  1.0

by: mhcomputing
Recommended to buy: No

Pros
Excellent feature set for Calculus and...
Cons
Badly marred by a new, cheap manual...
 
7 out of 7 people found this review helpful.

More than Graphing!

Date of Review:  Oct 22, 2000
Review: This calculator is not just for graphing. It has many many functions. I first bought this just to help me with algebra and other matters, but after I used it for a week or two, I had really gone in more depth than I had once bought it for. This...
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  5.0

by: borisherr
Recommended to buy: Yes

Pros
Countless capabilities; great format
Cons
May be confusing for beginners
 
3 out of 3 people found this review helpful.

Great Product

Date of Review:  Feb 2, 2006
Review: I bought the TI-89 Titanium for college and found it to be very useful in my math courses. The extra space in them allow for you to put a ton of applications on them which to me seems like an endless limit.

The calculator was very well...
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  5.0

by: nemesis9765
Recommended to buy: Yes

Pros
Lots of functionality, Pocket PC like,...
Cons
None
 

Showing 11 - 20 of 106 Reviews

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