I first got the Ti-83 Plus calculator because it was required for a high school math class. Little did I really know how powerful of a calculator this really was. It has all the basic functions, like square roots and such, but my favorite feature is the ability to graph equations. The screen is fairly large, allowing you to easily see everything you need to. The coolest thing has to be&nbs...

I bought this calculator while pursuing my engineering degree in college and I have to say "It rocks". It has so many functions that I can't even use most of it unless I am a full-time engineer. It performs some calculus calculation both numerically and symbolically which is useful at times. I also found that it is very useful to install new applications or transfer data through t...

    I've had this calculator for over three years now using it in Geometry, Algebra II, Trigonometry, Physics, and Chemistry. So far I haven't had any issues where it couldn't solve a problem or at least parts of the problem.    The problem is that it doesn't have some of the more advanced applications like the TI-84 does. You'll get basic apps ...

I have purchase this calculator about four years ago on ebay, because I struggled so much in math. This calculator even has usb connectivity for tranferring data and installing applications. This calculator is for the greater level of math or physics courses, this calculator is great use if you is currently taking a math class like calculus, actually this is absolutely essential for anyone taki...

I've had the TI-30Xa Texas Instruments calculator since college...and that's been quite some time. I purchased this calculator, because I signed up for a Statistics class. I was really worried about taking Statistics. It was my first class in it and I hated math...period. This calculator was my Statistics friend and helped me get through the class. I remember my first exam in Statistics...

I have used this calculator since I was in high school and its still going strong.  I had originally needed it for math class, but I also had found out that I liked this calculator better than a regular calculator.  When you first getting used to this calculator, its a bit different.  After a while, you should really get used to the calculator.I love having the big screen where t...

Hi all, i'm sorry i couldn't produce a bigger picture but anyways. This racquet is very light and is very firm. It is good for both defense and agressive styles of badminton. Its tungsten and woven fiber mesh. The racquet handles well for a person who is light and speedy.The ti 300 is excellent for smashes and for deflects. It is one of the Ti series. You can also buy the 400 and 500 se...

This calculator has served me extremely well through all my high school and my college life. It has so many functions and it's just so amazing it can do everything. Many tests become a cinch because of how powerful the TI-89 Titanium is. This graphing caculator can do everything from derivatives to integrals (and probably so much more I just haven't learned it yet). The battery life is ...

This calculator is basically perfect. I use it for my math classes, and I have yet to find any situation that it will not accomodate me for. My experiences with this calculator at first confused and frustrated me, but since having learned how it functions, it has augmented my ability to learn math many times over. For this calculator, you really want to save the owner's manual or else you w...

As an engineering student, the TI-89 calculator is a necessity.  It is the standard to base other engineering and advanced mathematics calculators.  This calculator can do anything, even solving algebraic equations, derivatives, and antiderivatives.  However, with so much functionality you'll have a tough time remembering the commands for everything.  Each button can als...

This calculator has 2 lines of display.  The first line will hold up to 88 digits, the second line displays the answer.  This calculator is capable of doing some trigonometry functions, fractions, rectangular-polar conversions, probablility (combinations, statistics and notations.  It can be difficulty to use if you do not keep the book.  However inside the plastic cover the...

I originally bought this calculator for high school AP Calculus, and was able to take advantage of its symbolic differential equations and indefinite integration capabilities to check my work. I went on to be a chemical engineering major and quickly discovered its capabilities extended far past that, and used it, for all intents and purposes, as a portable, barebones MATLAB. It does single vari...

    This is not a calculator for the weak of heart.  This is not for business people; you're fine with your 4 functions and scientifics.  This is for the engineers, scientists, and mathematicians.  If you speak differential equations, fourier transforms, and fluid flows, you have to own this.      Most people will purchase this making the up...

The Head TI Radical has a 98 square inch head and is made of graphite and titanium.  It weighs 11 oz., which is quite light for a control racquest.  It is a blended orange and silver color and comes with a full body case.The TI Radical is a good, solid control racquet that can suit any type of game.  I happen to play mostly from the baseline.  The racquet offers me the contr...

This calculator is a good bit on the expensive side, but for anyone going through calculus and higher math in high school and college it is definitely a wise investment.  The TI-89 is basically a souped up version of the TI-83 and 86, and it can do almost anything you can imagine.  Aside from basic calculatory functions, you can also do trigonometry, graphing, exponentials, and all ki...

I have owned this calculator for about 4 years now. First of all, I'm impressed at the battery life. I've only changed the battery 2 or 3 times in that period. Granted, I haven't used it as much these last few years, that still averages to about a year or so per change of batteries, at moderate usage.The range of features on this calculator is amazing. I simply can't imagine nee...

This calculator is great. Although it doesn't have the functions of the higher end models you are still able to do everything needed to pass High School math and also most college courses. I have had this calculator for many years. I found it when I was on the bus and nobody claimed it so it could have been around for even longer then I have had it too. I drains batteries at a decent pace s...

The Texas Instruments TI-83 Plus Silver Edition is a calculator that can be used throughout high school and even through most of college. Most high school math classes (algebra through calculus) will take advantage of this calculators functions and is required to do well. Most kids either have the TI-83 or TI-84 versions now. The TI-83 Silver edition is faster than the normal TI-83 and it has a...

The TI-89 Titanium is a fantastic device from the same people that brought you the TI-83. Chances are, if you are in the market for a TI-89 you have already had a TI-83 for a few years now and are trying to decide if you should make the jump to the 89. In short, my answer would be "go for it". The TI-89 provides all of the features that the 83 did but with a beatuful screen and more f...

Math: a pain, right? Not anymore; the TI-89 Titanium cuts all of the brain-numbing, teeth-clenching frustration from the former toil that was mathematics. Any course from Algebra to Calculus would hardly be complete without the 89. Its funtions range from simple addition (of course) to automatic integration. Still, what truly makes the Ti-89 a spectacular calculator, and sets it apart from simp...