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Electronics : Texas Instruments TI-89 Titanium Graphing Calculator

Rating: 5 out of 5 stars - Essential for Calculus
This is absolutely essential for anyone taking a Calculus class. This is especially true for later on, such as in the later half of Calc 2 and all of Calc 3. After learning how to manually evaluate integrals and differentiate, as you move on to higher level concepts the 89 titanium can be used to do these manual tasks for you, allowing you to focus on the new material and allow you to practice more without wasting time on repetitive evaluations. I love this thing, and would not take Calc and Physics without it.

Rating:

- Great deal!!!
They were fast and was a lot cheaper than a lot of the other vendors. The product was used but in great shape just like they said it was. I would certainly buy from them again.

Rating:

- Excellent Calculator
I bought this calculator for my grads math and engineering courses and it works perfect. There are some many features which make this probably the best calculator on the market. Yes, now TI launched the Nspire and Nspire CAS, but to be honest, those calculator are far away yet from the Ti-89 Titanium in one of the most important thing: support (programs, applications, etc). I'd wait at least two years to see if TI give more support for the Nspire series, meanwhile I think the Titanium is a powerful machine with advanced functions (numerical and symbolic) and a very decent memory for most of engineering applications.

Rating:

- Great Calculator
I'm an engineering student, and this calculator is a MAJOR UPGRADE over a TI-83/TI-84. It can do so much more once you learn how to use it, and it has helped me on my calculus homework more times than I can count.

It is a must have for any engineering/science student.

Rating:

- Highly Powerful, Versatile Graphing Utility
Before buying this TI-89 Titanium, I had been using a TI-86 (now discontinued) for about five or six years. I was hesitant to make the switch because I was so satisfied with my previous calculator, but was convinced of the 89's usefulness within the first week of using it.

The greatest improvement over the other lines of TI calculators (discluding the n-Spire series) is the Computer Algebra System (CAS). This comes in handy on a daily basis in my Physics and Calculus courses because it saves an unbelievable amount of time in grunt-work involving simplification of expressions and solving of equations. It is very easy to input equations manipulate variables with the way the menus are set up, and the system is quite fast and accurate.

Programming in the TI-89 is also streamlined as compared with the normal TI Calculator BASIC simply because of the added ability to pass arguments into programs and functions. Functions may also be defined in the homescreen and within the lines of a program.

As the built-in and downloadable features of this calculator are far too numerous for me to recount, I will say that they are all very easy to use, quick to learn, and useful in many different situations.

The only complaint I have about the calculator, in fact, has something to do with the CAS system and evaluating limits and such at infinity. Weird things can happen if you attempt to evaluate specific functions at infinity or differentiate or integrate specific equations. Because of this, you should verify that the calculator correctly evaluates or simplifies the type of equation or expression you enter. The errors in the system, however, are so few as to be considered negligible and will not be used on a daily basis anyway.

I highly recommend this calculator for anybody in any math or science class involving heavy usage of algebra or graphing. It is a very solid unit and can be used for many different purposes.

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Domal
from: Texas Instruments
The Night of the Hunter
Binding: Electronics
Brand: Texas Instruments
Color: BLACK
EAN: 0490800100329
Format: CD
Label: Texas Instruments
Manufacturer: Texas Instruments
Model: TI-89
Number Of Items: 1
Publication Date: 2004
Publisher: Texas Instruments
Release Date: June 01, 2004
Studio: Texas Instruments
MPN: TI-89
Stanley Kubrick

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Electronics : Texas Instruments TI-89 Titanium Graphing Calculator