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SquareTrade 3-year Office Protection Plan ($125-$150)

from SquareTrade

4.1 out of 5 stars (3243)
  • Coverage for product breakdowns and malfunctions
  • 24/7 customer support
  • Free shipping on all repairs with no deductibles or hidden fees
  • Fully transferable with gifts. Cancel anytime, full refund in the first 30 days
  • If you purchase this service plan and eligible product for this service plan, you acknowledge that Amazon may send the service plan seller relevant product and price information for the purpose of administering the plan
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SquareTrade 2-year Office Protection Plan ($125-$150)

from SquareTrade

4.1 out of 5 stars (3243)
  • Coverage for product breakdowns and malfunctions
  • 24/7 customer support
  • Free shipping on all repairs with no deductibles or hidden fees
  • Fully transferable with gifts. Cancel anytime, full refund in the first 30 days
  • If you purchase this service plan and eligible product for this service plan, you acknowledge that Amazon may send the service plan seller relevant product and price information for the purpose of administering the plan
Learn more
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Texas Instruments TI-89 Titanium Graphing Calculator with Guerrilla Silicone Case (Pink)

4.5 out of 5 stars 951 customer reviews
List Price: $219.98
Price: $148.87 & FREE Shipping. Details
Only 10 left in stock.
Want these items tomorrow, April 12? Order within and choose the fastest ship options at checkout. Details
Ships from and sold by Amazon.com.
TI-89 Titanium with Silicone Case (Pink)
  • Enter your model number above to make sure this fits.
  • Contents: TI-89 Titanium Graphing Calculator and Guerrilla Silicone Case (Pink)
  • TI-89 Titanium graphing calculator handles calculus, algebra, matrices, and statistical functions
  • Protect your graphing calculator with a Guerrilla silicone case

This bundle contains 2 items (may ship separately)

1 of Texas Instruments TI-89 Titanium Graphing Calculator
(951)
  • Graphing calculator handles calculus, algebra, matrices, and statistical functions
  • 188 KB RAM and 2.7 MB flash memory for speed; plenty of storage for functions, programs, data
  • Large 100 x 160 pixel display for split-screen views
  • USB on-the-go technology for file sharing with other calculators and connecting with PCs
  • Backed by 1-year warranty
1 of Guerrilla Silicone Case for Texas Instruments TI-89 Titanium Graphing Calculator, Pink
(31)
  • Protect Your Graphing Calculator
  • Made from high quality non-tear able silicone
  • Easy access to all buttons
  • Please note: Product is a case only. Calculator NOT included.

Bundle Details

List Price
Texas Instruments TI-89 Titanium... $199.99 $129.98
Guerrilla Silicone Case for Texas... $28.99 $18.89
Total Bought Separately: $148.87
Bundle Price: $148.87
$148.87 & FREE Shipping. Details Only 10 left in stock. Ships from and sold by Amazon.com.

Product Information

Style:TI-89 Titanium with Silicone Case (Pink)
Shipping Information View shipping rates and policies
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
ASIN B00LLKJ97S
Customer Reviews
4.5 out of 5 stars 951 customer reviews

4.5 out of 5 stars
Best Sellers Rank #201 in Electronics > Office Electronics > Calculators > Graphing
#229,203 in Office Products > Office Supplies
Date first available at Amazon.com July 7, 2014

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsGreat Calculator
By Michael Mazack on June 14, 2004
Style Name: TI-89 Titanium
Before I bought a TI-89 Titanium, I had used a TI-83 Plus for four years. After taking calculus and learning about limits, derivatives, integrals, infinite series, Taylor series, differential equations, and multivariable functions, I decided that I would look for a calculator which was capable of symbolic computation. After analyzing my options, I decided on a TI-89 Titanium. The TI-89 Titanium is able to expand polynomials, factor polynomials, and do all of the calculus techniques that I mentioned -- symbolically and numerically. One of the other things I found helpful was the TI-89 Titanium's ability to plot direction fields using different algorithms (including Euler's method). One of the nicer things about this model (compared to the TI-89) is that it has USB connectivity (cord included) for installing applications and transferring data. Another nice thing is that it also supports connectivity to older model TI-89s via the old I/O port which is right next to the USB connector. I also found the "exact mode" very useful (exact mode will give you exact answers rather than decimal approximations). Yet, the most useful feature of this calculator is probably the "pretty print" feature which displays expressions as you would normally write them on paper. This feature allows you to easily see the expression that you typed in. All these features plus copy and paste ability make this calculator nearly perfect. My only complaint is that the cover does not initially slide on and off easily. However, I'm sure that with more use it will wear in. Overall this is a great calculator -- I recommend it
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5.0 out of 5 starsFor calculus and beyond, perfect! Anything below calculus, this is too much!
By D. Bez on June 22, 2006
Style Name: TI-89 Titanium
After using a TI-83 Plus calculator for the last 5 years, I decided to upgrade to the TI-89 Titanium. This calculator is unbelievable in its features and power. First of all, it is more suited for advanced math, such as calculus and beyond. This calculator is NOT meant for high schoolers who are taking algebra, geometry or trig classes. If you don't know what a derivative or an integral is, then save your money and buy a TI-84 instead. (Besides, I believe most high school math teachers ban the TI-89 on tests) This calculator can also run programs in its Flash memory, which can be downloaded from the TI website. A USB cable is included standard. TI has made the newly designed sliding cover much more secure than the old TI design (TI-83 plus, TI-86, TI-89 regular), whose sliding cover was not very secure and became looser over continued use. The cover is very hard to get off the first few times (I was almost afraid of breaking it off), but over time it has gotten easier. Switching over from the TI-83, the only problem I've encountered is the operation of this calculator is very different from the 83. The menus are different, the interface different, different buttons. It takes a while to get used to.
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5.0 out of 5 starsTI-89 Titanium For Statistics
By George Hartas on July 11, 2006
Style Name: TI-89 Titanium Verified Purchase
Pros:

- The display has a Pretty Print option (default), which is very helpful when inputting long formulas.

- Great for Statistics, which is why I bought it in the first place since that is my major in college.

Cons:

- This is important if you are a college student. The math and statistics books all refer to the TI-83 when explaining how to perform the calculations using a calculator. So while the teacher is talking out loud walking the students step by step on how to perform a calculation, you're sitting there with the most powerful calculator in the class and out of luck. Then you have to scramble flipping thru the menu items to match the menu path of the TI-83, AND you're trying to learn the math at the same time. That happened to me in a statistics class and that wasn't fun at all! So be prepared for the inevitable; this is your warning. I recommend you study the upcoming textbook chapter ahead of time and learn how to perform those functions before you get to class.

- PDF files exist to explain the Flash applications loaded on the TI-89 Titanium. Unfortunately they are not easily found on the TI website. To get the PDF's, you have to follow the menu path as if you want to download the application. Then on the web page where you download the application, the PDF is there. TI should have also have placed the PDF in the "Documentation" section of the website. If I had not updated the application, I would not have known the PDF existed. Make sure you download the PDF for the TI-89 Titanium, not the PDF for the TI-89. Some functions are different. For statistics, be sure to download the PDF "Statistics with List Editor Guidebook For TI-89".

General:

- I did the Operating System upgrade, but with a few bumps along the way.Read more ›
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5.0 out of 5 starsPowerful, so powerful
By Y. Shin on November 6, 2004
Style Name: TI-89 Titanium Verified Purchase
This is the most powerful scientific calculator in its class.

If you're majoring in Engineering, or plan to major it, then you must get this one (or regular Ti-89)

If you buy anything else for cheaper price, you'll have to spend $150 more to get this later anyway. (like me)

However if your Math class will end up in Calculus or Algebra(i.e. if you're not going to learn Diff. equation or harder), you don't really need this, you will just waste extra $70 for the features that you will never use (or features that aren't allowed to use in exam)

So think logically. It's really cool looking calculator and it got best software/hardware in the world.

But if one is going to use it for simple graphic or solving polynomial equations, then it's really like simulating windows and playing Doom3 on NEC Earth Simulator..

Used Ti-83 will do as good for those..
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