Texas Instruments TI-89 Advanced Graphing Calculator
Posted by: raysmithtx Post date: December 3rd, 2009
- 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
Product Description
Introducing TI's most powerful graphing calculator: The TI-89 Titanium, offering new features, preloaded Apps, and even more versatility. A built-in USB port makes data transfer ultra-convenient. Plus, with three times the memory of the TI-89, you can store more Apps, data, and programsAmazon.com Review
This advanced graphing calculator is packed with more features than you might know how to use. The TI-89 lets you perform the expected functions of an adva... More >>
Texas Instruments TI-89 Advanced Graphing Calculator
- Tags: Advanced, Calculator, Graphing, Instruments, Texas, Ti89
December 3rd, 2009 at 10:20 am
Hi… I want to buy a new calculator, I had used the HP48GX and one of the features that I most heavily used was the equation solver with Complex Numbers. I was just wondering if the TI92 can solve systems of equations where the variables and constants are complex numbers, also if it can manipulate complex numbers in general(transform from polar to rectangular forms, division, sum, multiplication, etc…)?
Thanks
Rating: 5 / 5
December 3rd, 2009 at 1:19 pm
This calculator is where I went wrong. It was the worst thing that ever happened to me. My IQ dropped significantly from this damn thing. It does everyrthing for you and you turn into a calculator nerd and it washes your brain and takes over your mind. I flunked out of AP Calculus and High School (I was valedictorian going into my senior year) It took all my time. Just stay away from it!
Rating: 1 / 5
December 3rd, 2009 at 3:36 pm
but of course it was to good to be true. I tried to work it but it was confusing and when I figured out how to work it, it didnt work. It was not worth my money. If you really need a calculator just get one for 20 bucks!
Rating: 3 / 5
December 3rd, 2009 at 5:24 pm
when i ordered this one, i thought it was new one, but it was not.
Rating: 3 / 5
December 3rd, 2009 at 6:26 pm
I just bought a TI-89 on the advice of others in my college in advanced math. I was so excited and I really wanted to like it. I mean come on, it has programming, games and applications – like a calculator should. But as with another review here I have to give it 1 star based on horrible craftsmanship of the LCD. The second I turned it on I realized:
- THE ENTIRE DISPLAY IS SKEWED SLIGHTLY DIAGONALLY TO THE LEFT.
- THE LCD IS DIRECTLY EXPOSED, NO COVER.
- LCD DOES NOT MAKE USE OF ENTIRE SCREEN AREA LEAVING 3-6MM ON ALL SIDES YES IT VARIES BECAUSE THE SCREEN IS TILTED DIAGONALLY A FEW DEGREES.
Im sorry Texas Instruments, that is just unacceptable. I thought I had a defective product but now I realize all TI-89′s have the skewed display. All I can think about when I use it is how annoying the skewed display is. For a calculator I could stomach a skewed display but the flagship TI-89?
TI is going to loose market share to HP if they don’t get their act together. Their calculators are already half the power of the HP’s best (which are nicely constructed), if only the dident require this in college classes I wouldent use it.
Rating: 1 / 5