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Texas Instruments TI-89 Advanced Graphing Calculator

4.2 out of 5 stars 282 customer reviews
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  • Over 500 KB memory for storing functions, programs, and data
  • Pretty Print technology displays mathematical expressions as they appear in textbooks
  • High-resolution display with split-screen views
  • Computes symbolic solutions to differential equations
  • Input/output port and cable, also supports optional TI-GRAPH LINK
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Product Description

Product Description

The product description for this item is for the TI-89 Titanium and describes features that are not included with the TI-89 Advanced. The TI-89 Advanced does not include a USB Port, but a basic 3.5mm I/O input.

Amazon.com

Essential for AP Calculus, college math, and beyond, the TI-89 is the most logical handheld technology for advanced mathematics studies. Enhanced with Flash technology, this handheld gives you the flexibility to add calculator software applications and additional functionality, providing long-term value.

Built-in advanced mathematics software includes a Computer Algebra System (CAS) enabling you to manipulate mathematical expressions and functions (factor, solve, differentiate, integrate, and more). It also includes differential equations, 2-D graphing and data analysis, 3-D graphing with rotations, linear algebra, interactive numeric solver, constants, unit conversions, statistical regressions, and optional assembly language programming.


Product Information

Product Dimensions 7.3 x 3.5 x 1 inches
Item Weight 9.9 ounces
Shipping Weight 11.2 ounces
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 B00000JF55
Item model number TI89
Customer Reviews
4.2 out of 5 stars 282 customer reviews

4.2 out of 5 stars
Best Sellers Rank #39 in Electronics > Office Electronics > Calculators > Graphing
#13,257 in Office Products > Office Supplies
Date first available at Amazon.com June 1, 1999

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Customer Reviews

Top Customer Reviews

The TI-89 is an excellent calculator. It has an absolutley HUGEfeature set, and is so advanced that it can basically do most math for you. My favorite features are the CAS (computer algebra system), which can solve a lot of algebraic equations for you, and the factoring function (I dont have to waste time factoring on paper anymore! whoohoo!). My old ti-83+ seems like a slide rule compared to this thing, but the 89 is still quite easy to use. In addition, not only is this calculator great for math, its great for games! There's a multitude of mathematical programs and games that you can find for free online. . . The only downside to this calculator is that the rich feature set can actually be a problem. A lot of students that use this calculator rely on it too much, and some of them barely understand any of the math that they are supposed to be learning. It is probably for this reason that it and its brother the TI-92 (difference between the TI-89 and TI-92 is the 92's qwerty keyboard, useless for a calculator in my opinion,and the 89 is smaller) are banned in some colleges, and on some tests, like the ACT's. If you've got the discipline not to rely too much on this fine piece of equipment (if you're a student), I highly recommend this calculator. But be warned, keep your old calculator around for tests that you can't use your 89 on, and NEVER rely to much on it.
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1) arithmatic calculator functions: cause I'm too lazy for 6*7 in my head
2) entry memory : ever forget how you arrived at your answer? Your TI89 stores up to the past 80 calculations you've done
3) graphing functions: oh so much easier to do math when I can see the problem... function, polar, differential, parametric, sequential, even 3D graphs
4) algebra support: x^3 + 42x^2 - 8x + 2.1 = 0 ... forget factoring by hand : x = -42.1907945554 of course!
5) data tables: set up matracies, lists, and other data stuff...
6) units: A MUST for a science student... put in all your units and it will convert them
7) Calculus capabilities: differentiate, integrate, find limits (and MORE) of functions you type in!
8) Numeric solver: type in your own equations and plug in the numbers... KE = 1/2 * m * v^2
9) Easy interface, very intuitive
10) Seemingly limitless capabilities: download programs from the internet and load them on to your calcualtor (my favorite: the Periodic Table, with lots of data on each element). (you need the TI-graph link for a PC-Calculator hookup)
11) You CAN use them on SAT1, SAT2s, APs, and many other standardized tests.
11 reasons doesn't come close to how much I love this calculator! If you are or will be taking any of these classes I highly recommend the TI-89 : Calculus I, Calculus II, Statistics, Physics, Chemistry, ... and beyond!
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This Calculator absolutely does it all! It's ability to find derivatives and antiderivatives (which the TI-85 cannot do) as well as many other calculus functions is invaluable. In calculus, I was always far ahead of my class due to this calculator! In statistics, its tables and graphing is extremely easy to use and its statistical summaries are much easier to access and read than those of the 83 or 85. The pretty print feature makes finding mistakes and reading the answers much easier. The graphs (3D) are far superior to that of the TI-83 or 85. I would recommend this calculator over the 92 for high school students due to the fact that the TI-92 (with its QWERTY keyboard) is not allowed on the SAT I or II tests or AP tests. The TI-89, with very similar operation and features, is allowed on these tests. For more information...e-mail me.
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The TI-89 is a great calculator, don't get me wrong. However, in light of its reputation as the "supercalculator," I cannot give this product a five-star rating.
As a high school math team student and three-year owner of the TI-89, I can tell you first hand that when you put in the time to fully learn its capabilities, it can be an awesome tool. Its 10/12 mHz (depending on how new your calculator is) Motorola 68000 processor is to this day unmatched in the world of graphing calculators, and 1 MB is plenty of memory.
The main reason that anybody would buy this calculator, I would assume, is for its computer algebra system, a piece of software based on the Derive engine referred to as the Advanced Mathematics Software. This software is stored in Flash RAM, so it can be upgraded via Internet download using a Mac or Windows PC (of course, you will have to purchase a $25 cable to link the calculator to the computer. I would highly recommend this purchase). While the TI-89's CAS (computer algebra system) certainly puts a sparkle in the eye of any algebra student, being able to symbolically factor and multiply expressions, integrate, differentiate, and so on, it is not quite the greatest thing since sliced bread. The functionality of the 89's CAS, especially when it comes to symbolic integration, can be limited to the more simple, textbook-example types of problems. For example, try integrating (2*x^2+1)*e^(x^2)dx on the 89. It can't do it. In addition, the 89 lacks any kind of sequences and series functionality. These limitations on the CAS would make something like the H49G, with its powerful Erable-based CAS, more appropriate for professional users.
What the 89 lacks in built-in functionality, however, it makes up for in ease-of-use and expandability.
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