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Texas Instruments TI-89 Titanium Graphing Calculator

Texas Instruments® TI-89 Titanium Graphing Calculator

Item: 566640    Model: TI89T

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  • 100 x 160 pixel display
  • 2.7MB flash memory, 188KB RAM
  • 3-D graphing and real-time rotation
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100 x 160 pixel display2.7MB flash memory, 188KB RAM3-D graphing and real-time rotationEachGraphing Calculator100 x 160 pixel display2.7MB flash memory, 188KB RAM3-D graphing and real-time rotationTexas Instruments® TI-89 Titanium Graphing Calculator157.99USDhttp://www.staples-3p.com/s7/is/image/Staples/s0068805_sc7?$std$http://www.staples-3p.com/s7/is/image/Staples/s0068805_sc7?$thb$http://www.staples-3p.com/s7/is/image/Staples/s0068805/Texas-Instruments-TI-89-Titanium-Graphing-Calculator/product_566640
Price:
$157.99
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REVIEW SNAPSHOT®

by PowerReviews
Texas Instruments® TI-89 Titanium Graphing Calculator
 
4.5

(based on 87 reviews)

Ratings Distribution

  • 5 Stars

     

    (56)

  • 4 Stars

     

    (25)

  • 3 Stars

     

    (3)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

93%

of respondents would recommend this to a friend.

Pros

  • Adequate capabilities (68)
  • Clear display (56)
  • Well built / quality (56)
  • Attractive (46)
  • Easy to use (46)

Cons

  • Heavy / bulky (17)
  • Difficult to use (15)
  • Hard to see display (9)
  • Short battery life (4)

Best Uses

  • Math classes (72)
  • School (52)
  • Engineering (47)
  • Science classes (42)
  • Office work (14)
    • Reviewer Profile:
    • Power user (29), Casual user (25), Enthusiast (13), Tech savvy (6), Practical (5)
    • Primary use:
    • Personal (66), Business (11)
    • Was this a gift?:
    • No (33), Yes (13)

Most Helpful Positive Review

 

excellent buy

i have had this calculator now since January '07. i have to admit i am thoroughly satisfied with the service it has provided me. it has been real helpful in my statistics course,...Read complete review

i have had this calculator now since January '07. i have to admit i am thoroughly satisfied with the service it has provided me. it has been real helpful in my statistics course, although i had to download the application from ti's website. the application is wonderful and easy to use. i use it for my statistics and calculus courses. i use it most in calculus. however, you have to be aware that the calculator is just a calculator and won't solve simple problems the way they are supposed to be solved. although it will find the derivative of a trig function, it does NOT use the chain rule and therefore will give you a wrong answer. i rely on the calculator ONLY to check simple solutions. maybe i had missed something and it will catch it. overall, i am satisfied with the calculator. i like it, and i DISLIKE the ti-83(i've had for years now) and ti-84, although i bought the ti-84 because it was a "requirement" for my stats course. had i known that the ti-89 is easier to use and better for me, i wouldn't have spent [$] on the ti-84 that's just sitting on my desk accumulating dust. i would recommend the ti-89 to anyone because of its ease of use and practical applications.

VS

Most Helpful Negative Review

 

Steep Learning Curve and Big Potential

I bought this after my TI-84+ self destructed the night before am engineering exam. The interface is not intuitive, but there is a lot going on in the background. Honestly, I...Read complete review

I bought this after my TI-84+ self destructed the night before am engineering exam. The interface is not intuitive, but there is a lot going on in the background. Honestly, I knew what I needed for my exam, and this calculator wasn't confidence inspiring. It took a bit of relearning to find matrices...

With the stock manual you can muddle through a lot of basic stuff, but the big powerful functions are tricky to find.

The display sucks, period. Tiny pixelated symbols that nearly require a magnifying glass? That's so 1990 (I had one of the first TI-81's, the screen quality hasn't improved by much). I guess I just expect more since I own an iPod Touch...? If I could do it over, I would get a TI-84 again...

Reviewed by 87 customers

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Displaying reviews 1-5

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5.0

Engineering Student helper

By Gloria

from Northern Virginia

Verified Buyer

Comments about Texas Instruments® TI-89 Titanium Graphing Calculator:

My daughter loves her new TI-89 calculator. She opted for this model because she is studying engineering in college next year. Makes doing her high school calculus and stats homework easier.

Comment on this review(earn points)

(0 of 1 customers found this review helpful)

 
4.0

replacing previous 3yro one that died

By Nic's Dad

from Fort Worth, TX

Verified Buyer
This customer has reached Intern level on the Staples.com Leaderboard

Comments about Texas Instruments® TI-89 Titanium Graphing Calculator:

I bought my daughter one of these about 3 years ago (or so). That one just simply died a couple of weeks ago, and she wanted another. She likes it. It's just what she needed for algebra, geometry, trig, and now calculus. Also, she can use it during the SAT and AP exams. I bought a pink cover for the previous version (or maybe the one before that - thanks, TI, for making them compatible!), so, as the only girl in her AP Calc BC class, she gets to make her statement.

Personally, for what seems like decades, I had an HP10c, but now my iPhone does everything I need in a calculator.

Comment on this review(earn points)

 
5.0

Much better than the IT-84

By SH

from Provo, UT

Verified Buyer
This customer has reached Intern level on the Staples.com Leaderboard

Comments about Texas Instruments® TI-89 Titanium Graphing Calculator:

My son's Pre-Calc teacher suggested the TI-89. She said the TI-84 would work but the TI-89 is better. We decided to spend the extra money and get what she suggested. He said after actually seeing what his calculator did compaired to the others he was glad that we spent the extra money. There was no comparison.

Comment on this review(earn points)

 
4.0

Great calculator.

By gsaxon

from Illinois

Verified Buyer
This customer has reached Intern level on the Staples.com Leaderboard

Comments about Texas Instruments® TI-89 Titanium Graphing Calculator:

This is a great calculator for the price. The TI 89 can do it all. Great for college classes.

Comment on this review(earn points)

(0 of 1 customers found this review helpful)

 
1.0

It's too complicated to use

By B

from Queens

Verified Buyer

Comments about Texas Instruments® TI-89 Titanium Graphing Calculator:

It's too complicated to use!!! I couldn't undertand it!!!

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Displaying reviews 1-5

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