Texas Instruments TI-nspire CX II CAS Graphing Calculator with Student Software

Perfect

The battery life is great, and it has so many amazing functions. Honestly, it makes me a little less motivated to learn the content, but technology has done this to society on many facets. I'd definitely recommend it for calculus, algebra, and stats.

There is a moderate learning curve. The touchpad is great but it takes a little practice. The CAS has solved problems and formatted answers better than my HP49g and I highly recommend it. I think TI should make it easier to graph vertical lines. I was disappointed when it could not graph abs(x)<3. I had to graph x>-3 then graph x<3 using the text tool. I would be nice to be able to enter x= equations a easy as you can enter f(x)= equations. I teach math at a university and at a highschool and linear programming often has inequalities involving x<30 and the like. Also when there are several layers of inequalities it can be a little hard to distinguish the feasible region. TI could make it easier to change the background colors. The gray scale CAS model did a better job with the layered shading. Overall I would rate this calculator at the top of my favorite calculators.

This is the first TI product I have ever purchased. It is the first scientific/graphing calculator I have purchased. Several of the reviews gave warnings about the learning curve. I went in expecting it to be tough. It is. But that does not mean it was a bad purchase. I think that if you are a novice then this might be the ideal product for you. You won't have to relearn how you calculate. It seems like this is the direction that hi-end calculators are heading so why not jump in head first? Think of it like upgrading to a fancy new cell phone. You know you like that. This unit has a free downloadable version for your computer so you can use it in a larger size and explore features in a familiar environment. Be sure to make use of TI's website and watch the videos that user's have uploaded on youtube. I also bought the TI NSPIRE for Dummies book and it is a huge plus.

This calculator is great it has everything you absolutely need for any math class from basic algebra to calculus 3. It's a calculator that grows with you. [This review was collected as part of a promotion.]

This graphing calculator overall has good quality and the qraph points are usually correct. I have to have it for college work and so far it's been correct.

Like others have mentioned. The inside package had already been opened upon receipt. I do not know if anything is missing. There was one scratch on the back of the calculator. It seems to work. I will try it for a couple of days to see if I should return it. I am disappointed.

This is my second Nspire. The first one I bought from Amazon wouldn't charge so I returned it. Amazon wouldn't replace it so I bought one from WalMart. I'm still trying to get a refund from Amazon. The one from WalMart was slightly damaged in shipping. The display screen is marred. TI should have covered it with a film. They didn't but it's still usable so I'll keep it. I'm still struggling to download the software. I just finished my third unsuccessful attempt to download the student software. I teach math and have used the TI 83, 84, 85, 86, 89 Titanium and the 92. The Nspire is different and takes considerable effort to learn to use. This calculator is powerful and versatile but be prepared for the frustration of a steep learning curve.

Package was open, obviously a used product or returned product

literally it come broken half acreen donest work and i dint have money to buy another. i got it it arrived and then lower rh side of screen is flicker and semi goes out honestly never buy from this company