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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 71 - 80 of 106 Reviews

 
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2 out of 2 people found this review helpful.

Most powerful calculator of its size.

Date of Review:  May 29, 2001
The Bottom Line: Great calculator, great value, great features, great everything. Strongly recommend for high school, college, life, and any science-math-type work!
Review: There are many users out there that are scared by this calculator because of the 'menus' or the many 'buttons'. Note: if you don't already know how to use a calculator like this (i.e. for derivatives and integrals) or you lack the capacity to learn,...
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  5.0

by: jbrukh
Recommended to buy: Yes

Pros
Very powerful, lots of features, can do...
Cons
Scares people who are technologically...
 
5 out of 5 people found this review helpful.

LEGAL ON THE SAT

Date of Review:  Nov 7, 2000
Review: I am probably one of the dumber kids at my school when it comes to math. But those Point Dexters weren't smart enough to realize the infinite power of the Ti-89. Some people say that the calculator does everything for you. And that is because it...
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  5.0

by: TreyJohnson14
Recommended to buy: Yes

Pros
DOES EVERYTHING LEGALLY!
Cons
costs a bunch
 
4 out of 4 people found this review helpful.

IF YOU ARE NOT SURE IF THE TI-89 IS FOR YOU

Date of Review:  Nov 10, 2000
Review: If you're not sure what type of Calculator to Buy (if you know, skip over this part

Now if you are planning to buy a graphing calculator, there are some things to know beforehand. First, think about the purpose of the calculator and if you...
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  5.0

by: x-cellent
Recommended to buy: Yes

Pros
very many functions
Cons
Not allowed in some classrooms
 
5 out of 5 people found this review helpful.

TI 89: Is it right for you?

Date of Review:  Aug 4, 2000
Review: I had a TI 89 graphing calculator, and I did not like it. The TI 89 is really unnessary, unless you are in an advanced math class(i.e,Calculus, Statistics). For all of those in Algebra, Geometry, or Trig this calculator is probably not what you...
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  2.0

by: IrishmanCN
Recommended to buy: No

Pros
Advanced Math features
Cons
Hard to use, Missing some important...
 
113 out of 113 people found this review helpful.

Just in time for another generation of sneaky high schoolers

Date of Review:  Aug 7, 2000
Review: In reality, the TI-89 is really more like a Palm Pilot than it is a calculator, given some of the features it has. For example, the TI-89 promises not to become obsolete quickly, due to its upgradability. Even without this feature, however, I doubt...
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  4.0

by: basilisk4
Recommended to buy: Yes

Pros
Great graphics and calculus capabilities
Cons
Cost
 
4 out of 4 people found this review helpful.

The Ultimate Calculator!!!

Date of Review:  Aug 28, 2000
Review: I bought this calculator upon arriving in college at the Air Force Academy and discovering that my other calculators were obselete for the mathematics required for many courses.

I am a calculator/mathematically-challenged cadet who bought...
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  5.0

by: hotaru25
Recommended to buy: Yes

Pros
easy to use, easy to understand
Cons
none!
 
9 out of 9 people found this review helpful.

Superior Product-TI-89 King Of Calculators!!

Date of Review:  Dec 7, 2000
Review: The TI-89 is awesome!! Doing calculations takes about half the time on the 89 because you can go back to any of your past 100-some calculations and bring that number (exactly!) into the current calculation. I've found this feature extremely helpful...
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  5.0

by: Stockman43
Recommended to buy: Yes

Pros
QUANTUM leap ahead of TI-83, Larger...
Cons
TAKES TIME TO GET USED TO!! NEEDS...
 
2 out of 2 people found this review helpful.

Very good, if you can afford it

Date of Review:  Mar 24, 2001
The Bottom Line: Perfect! It does everything you could want or need, and then some. Definently get this if you need a graphing calculator and are willing to pay the extra money.
Review: This is an excellent thing to get if you can afford it (or if you win it at Mathcounts like I did). It is so much better that other graphing calculators by Texas Instruments. It no longer has the feel of a personal organizer, more like that of a...
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  5.0

by: tisbj
Recommended to buy: Yes

Pros
Easy to use, excellent functions...
Cons
expensive
 
10 out of 10 people found this review helpful.

The Calculus student's dream machine

Date of Review:  Mar 10, 2001
The Bottom Line: I would like to get one of these when I graduate high school, and if I continue to study calculus and higher level mathematics.
Review: For several years, I had been using the Texas Instruments TI86 for math and entertainment. I thought it was a good calculator, but even that does not match the capabilities of the TI-89.

The machine
I was issued a TI-89 calculator for...
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  5.0

by: WillMontu
Recommended to buy: Yes

Pros
It does everything except program the...
Cons
It is not allowed on the ACT.
 
20 out of 20 people found this review helpful.

Fake your way through math class!

Date of Review:  Aug 10, 2000
Review: The main problem with having a calculator like this one is that you may think you don't need to actually learn the math you are doing. This is a mistake, one that helped me fail second semester trig. Actually my total laziness is really to blame,...
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  5.0

by: funkywizard
Recommended to buy: Yes

Pros
Fast for a calculator, lots of memory,...
Cons
Costs more (but worth every penny),...
 

Showing 71 - 80 of 106 Reviews

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