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| Brand: Texas Instruments
Category: CE
List Price: $199.99
Buy Used: $104.00
You Save: $95.99 (48%)
New (46) Used (19) from $104.00
Avg. Customer Rating:  136 reviews
Format: Cd
Media: Electronics
Autographed: No
Memorabilia: No
Batteries Included: No
Operating System: N/A
Shipping Weight (lbs): 0
Dimensions (in): 10.5 x 7.5 x 2.1
MPN: TI-89
Model: TI-89
UPC: 033317192038
EAN: 0490800100329
ASIN: B0001EMLZ2
Publication Date: 2004
Availability: Usually ships in 1-2 business days
Shipping: Expedited shipping available
Condition: GREAT CONDITION !!! Includes Calculator, Front Protective Cover, Battery Cover , Manual/software on CD , USB Cable and UNIT to UNIT Cable !!! No Marks !! Choose Expedited shipping for 3-6 business days delivery !! Purchase with confidence !!
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| Customer Reviews:
 It works! September 22, 2007
1 out of 1 found this review helpful
Great calculator. May be a little much if you're not "dabbling" in derivatives. This thing is like a palm pilot on steroids.
Awesome Calculator September 14, 2007
I have not had a chance to use some of the functions on this calculator. But, the ones that I have used, make it a superior calculator compared to any others I have ran across. The "pretty print" function allows you to see if you entered the problem correctly, which has caught some of my mistakes.
Great calculator, and I'm sure I won't need a more powerful one in my academic career
 Ti-89 vs. Ti-89 Titanium September 7, 2007
6 out of 6 found this review helpful
i`m a physics and engineering student and I've used both, ti89 and ti89 titanium several years and i still prefeer my ti89. Titanium is heavier and the feel and touch of the buttons is far better in the ti89. The only difference between both is the disk space available, software and display are exactly the same and unless you think you are going to have all the programs and notes of your entire carrier you dont need all the disk space in the titanium, i`ve never had space problems with the ti89 and i have all the programs i need uploaded.
Calculus Useage - High School September 5, 2007
6 out of 6 found this review helpful
Overall, this is a pretty good calculator. However, it should be noted that it does take some time getting used to, especially when switching from a TI-83. The graphs are exceptional and there are many new options. Actually the amount of things it can do is both exhilerating and frustrating at the same time. One negative point is that when you enter in a simple calculation, like 734/87, it will NOT give you the decimal answer and will just leave it in fraction form. I hate that. Therefore, simple calculations are no longer simple on here.
This calculator is a life saver... September 1, 2007
This calculator is a life saver. It does a lot of different computations very easily using many different built in functions. One specific problem I have found is that, although it has option for doing intergration it sometimes does it right and sometimes it does it wrong, depending on the complexity of the equation. For example it consistently did wrong integration for PDE's wave equations. So, i had to do it by hand since i couldn't tell when it was right and when it was wrong. But over all its a great calculator.
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