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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
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725
 
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Review List

Showing 61 - 70 of 106 Reviews

 
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7 out of 7 people found this review helpful.

Ti-89

Date of Review:  Apr 26, 2008
The Bottom Line: The TI-89 is a very powerful device. It made my high school calc class a ton easier and I believe it will do the same for any customer.
Review: I picked up the TI-89 calculator for high school, and I m very amazed at all the things it can do. My teachers recommended the Ti-83/84, but it was on sale at the time, and they were out of the 83s.
The TI-89 calculator comes with everything,...
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  5.0

by: silverzc413
Recommended to buy: Yes

Pros
Lots of features Very helpful for high...
Cons
Expensive Certain features are hard to...
 
10 out of 10 people found this review helpful.

From a high school students view.

Date of Review:  Nov 2, 2006
The Bottom Line: This product will be well worth the cost to you if you use math frequently or have a calculus course ahead of you.
Review: I took the SAT's with three times. I got a 550 in the old test in the math section with a ti-83 plus pretty consistently. The fourth time i took the SAT's I used my TI-89. I got a 710 on it. The reason was that once you figure out how to use the...
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  5.0

by: whoadoggy
Recommended to buy: Yes

Pros
Fast, usb, detailed screen, great...
Cons
Not many if any, read other reviews for...
 
7 out of 7 people found this review helpful.

If you NEED it, BUY IT!

Date of Review:  Dec 2, 2001
The Bottom Line: If you need this calculator (for calculus or engineering) it is an excellent tool, but for a steep price. However, it's not neccessary for most math.
Review: I purchased this product last week for my college calculus class, which basically requires the use of this calculator. I had been using a TI-86 which i thought was wonderful for about three years. The TI 89 is an excellent tool. It provides...
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  5.0

by: jaymelee
Recommended to buy: Yes

Pros
able to do many more things than the TI...
Cons
expensive, somewhat overwhelming...
 
7 out of 7 people found this review helpful.

Ti-89 Rocks

Date of Review:  Aug 10, 2005
Review: I really love using Ti-89. I guess it is the best one available out there in the morning. It is usable for whatever you can think of. If you are looking for something very useful and handy then buy Ti-89. It isn't that friendly user. Many features...
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  4.0

by: jamesafghan
Recommended to buy: Yes

Pros
Varieties of useful features
Cons
Not really friendly user...
 
99 out of 99 people found this review helpful.

Texas Instruments TI-89: It's Like a Hand- Held Personal Computer

Date of Review:  Oct 1, 2004
The Bottom Line: This calculator is expensive, but it's very helpful for students of advanced math. It's worth the high price, in my opinion.
Review: Calculators, in their numerous varieties, have been helping students solve mathematical problems for decades. Once a time- consuming process, math questions, both difficult and easy, can now be resolved in a matter of seconds, all with the push of a...
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  5.0

by: Bryan_Carey
Recommended to buy: Yes

Pros
The endless capabilities
Cons
Takes a while to learn to use; High...
 
10 out of 10 people found this review helpful.

Blessing for higher math students

Date of Review:  Aug 4, 2000
Review: I was in an AP Calculus BC class my senior year in high school that was using a class set of HP 48G calculators. Those were truly awful calculators to use. They were slow, gave answers back in hard to understand formats much of the time, and were...
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  5.0

by: Bananaswift
Recommended to buy: Yes

Pros
Upgradeable, does higher math
Cons
Could use a few even higher math...
 
3 out of 3 people found this review helpful.

Portable Power

Date of Review:  Aug 19, 2000
Review: The 89 is the quintessential calculator. With symbolic manipulation, advanced graphic capabilities, expandability with FlashROM and 3rd party programs, you can't go wrong with the 89.

I'm entering my Junior year pursuing a degree in Math...
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  5.0

by: Kroed
Recommended to buy: Yes

Pros
speed, features, computerized algebra...
Cons
moderate learning curve
 
18 out of 18 people found this review helpful.

TI-89 is the tool for the millenium

Date of Review:  Sep 15, 2000
Review: The TI-89 has many wondrous qualities. It will graph equations for you. It will solve equations for you. It will differentiate and integrate for you. It will also add, subtract, multiply, divide, and take the square for you. Plus, it has many other...
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  4.0

by: sheila18
Recommended to buy: Yes

Pros
Great machine that can do wonders with...
Cons
A little pricey, and a few bugs yet.
 
10 out of 10 people found this review helpful.

if your life involves calculus, the 89 is your savior

Date of Review:  Sep 21, 2000
Review: This calculator is essentially the TI-92 crammed into the body of a powerful calculator. The most wonderful tool to have if you do any regular work involving calculus. This calculator has it all: integrals, derivatives, Taylor polynomials, limits,...
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  5.0

by: Bornio
Recommended to buy: Yes

Pros
range of functions, ability, display,...
Cons
learning curve
 
14 out of 14 people found this review helpful.

My Math Buddy

Date of Review:  Oct 29, 2000
Review: I (actually, my dad) purchased my TI-89 in the September of 1999 for my math classes in high school. It was very expensive - $149.99 - and my dad wasn't too thrilled about the price. But in my experience, the TI-89 was a very good purchase. I've...
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  4.0

by: OhNubilousOne
Recommended to buy: Yes

Pros
Lots of math features, lots of memory,...
Cons
Sometimes it will do all the math for...
 

Showing 61 - 70 of 106 Reviews

Page 1 ... 6 7 8 ... 11

 
 
 
 
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