Texas Instruments TI-Nspire CX II CAS Color Graphing Calculator with Student Software (PC/Mac)

I bought this for my husband while he was in college for Mechanical Engineering. It has a lot of great features. The functions can be a little confusing at first if you have never used this type of calculator before, but the instruction manual is helpful with navigating its functions and capabilities, along with YouTube videos. The accuracy of it is spot on. The adjustable brightness is convenient, especially for late night study sessions or homework procrastination. It is pretty lightweight considering that it is a graphing calculator. For comparison, it is not significantly heavier than any of the other Texas instrument calculators. The price is definitely fair in comparison to other graphing calculators, and it is worth it for this one considering its durability and purpose.

The TI-Nspire is an AMAZING tool as an Electrical Engineering student it makes life 10 times more easier. The battery life is great and I only have to charge every now and then. There are lots of tutorials online for doing things, but this calculator can do tons of things especially in the complex region which is especially of use with transfer functions, impedances, etc... and is allowed in a lot of my exams.

This calculator will definitely help you step up your came in your science and math courses. I should have purchased it long ago.

I'm a college student, studying for a degree in Economics. Needless to say, my life these days is all about maths. For the past couple of years I'd been using the TI 84 Plus CE which, although it's a pretty good graphing calculator all in all, has it's issues, but I is the recommended calculator for all the classes I've taken so far. So, imagine my surprise when I found out about the Nspire calculator series. The TI Nspire CXii CAS is an extraordinary tool. It can factor polynomials, calculate complex equations giving the answer in terms of i, and graph in 3D. That's right...Z-axis! The CAS in the calculator's name stands for Computer Algebra System. It allows you to solve polynomial equations in any number of variables and give answers in terms of those variables. That's right! You don't need numbers! One of my favorite upgrades is in the graphing feature. In the TI 83/84 series, if you wanted to trace a graph to a point of interest that was not in you current viewing window, you needed to leave the graph and go to a separate page where you needed to reset the viewing window to include your point of interest, then you had to navigate back to the graph and calculator would redraw it often very slowly. The Nspire CXii, on the other hand, allows you to make adjustments to the screen from a pop-up menu that comes up while you're still in graphing mode. And, if you don't want to bother with that, you can use the track pad to pick up the screen and move it, or you can just trace your chosen graph in either direction and when you reach the edge of the screen, it moves the screen to match your movements. You can also split the screen to view your table of values while looking at your graph! I'm still discovering all the things I can do with this calculator and I'm sure I'll continue to discover much more as I advance to higher levels of maths. There are entire apps dedicated to geometry, statistics, trigonometry, and more. Also, apparently there is a whole set of science tools witch can plug into the calculator to give you data on a wide range of things; heat, speed, velocity, etc. So much good stuff. Ok, now for areas that could use improvement. First, there is set of educational software that you can download and access for free when you purchase the calculator. Unfortunately, the software is only compatible with Windows or iOS. I, like many students, am a Chromebook user. Not making their systems compatible with Chrome OS is, in my opinion, an epic fail. I contacted their customer service department and suggested that improvement as well as a cloud computing option for those who want to access the tools from any computer. I was told that they passed my ideas on to their product development department. All in all, though, this is a great calculator! I'm sure I'll get several years of enjoyment out of it as I work toward my degree. It's way more intuitive and easier to navigate than the TI 84. That said, if you're like me, you'll need some help to get started. There's a pair of books by Lucas Allen in the Kindle store that really jump-started my understanding and enjoyment of the TI Nspire CXii CAS. I highly recommend reading them.

Adjustable brightness, accuracy to however many decimals you need, not too heavy, functions even with lower battery. Worth the money

Taking Calculus, Physics, and Chemistry this semester and this calculator is amazing. So far has been able to do everything ive needed it to do as far as graphing, logorithms/natural logs, displaying multiple equations on one screen... im sure i have not even discovered the full potential of this calculator. Only reason I am not giving it a 5 star review is it can be complex and everything I've been able to do so far was from invested time of playing with it. It has a bar code to scan but doesnt seem to take you to an I structures guide or seem to work. It also didnt come with a hard copy of instructions. Unless you're already familiar with the tool, it can be hard to use.

Needed an upgrade from TI-84 for CAS. Deliberated between HP and TI, and chose TI for convenience of usage and easy portability. Perfectly suits for the need and fast! CAS works nicely as well. Overall completely satisfied!

I bought this calculator and it was opened, but I decided to keep it after I was given an option for a discount sent to my account. All in all, it does exactly what I was expecting. Excellent display, much more rapid graphing than my TI-89 Titanium, multi-color, you name it. The touch pad does seem to be a bit too sensitive, but it's a graphing calculator, not the Mars Rover. Although there are other reviews out there that discredit the battery, there's more to the battery than what I've read. You must charge it for several hours first. I updated the firmware, and charged it for about 5 hours and it keeps the charge. Note: The charge icon won't go in increments of 1, it will jump to, say, 25%, then a while later it'll be at, say, 75%, then eventually 100%. So with MY unit here, it doesn't appear to be a battery issue, it's more of a sensitivity issue with the battery % indicator.

Excelente calculadora e entrega rápida pela Amazon mesmo fora de USA.

Just what’s you’d expect it to do

The Texas Instruments TI-Nspire CX II CAS is an outstanding graphing calculator that has truly enhanced my learning and problem-solving experience. The vibrant color display makes graphs and charts easy to read and interpret, while the powerful CAS functionality allows for advanced algebraic and calculus computations right at my fingertips. The included student software for PC and Mac is a fantastic bonus, providing a seamless way to explore concepts and complete assignments both on and offline. The calculator’s intuitive interface and responsive buttons make navigation smooth and user-friendly, even during complex calculations. I highly recommend this calculator for students and professionals who need a reliable, feature-rich tool for math and science courses. It’s definitely worth the investment!

Muy buena graficadora, algo compleja de usar, pero muy buena

Great calculator, it arrived quickly and the packaging was not one of those nearly impossible to open so first impressions were good. The calculator feels light which I am not a big fan of, but I generally baby my calculators so it won't be an issue. I am a professional, not a student, and I have similar calculators. I am not the biggest fan of the document-like approach for the calculator, and I'd rather have some of the more used functions with an assigned button rather than accessing them with menus (even trig functions) rather than the dedicated keypads with all letters. The calculator is very fast and responsive, but the touchpad is slightly annoying to use. I also have the HP Prime, it's direct competitor in terms of features, and so far I enjoy the Prime a bit better; but I like the vector handling of the CX II better than the Prime, so I have both at my desk. The battery life is good, but I honestly wish I could also use conventional batteries like the older TI Nspire (non CX) did, to ensure this calculator will last me a lifetime (I still have both an HP 50G and a TI 89 Titanium purchased in 2005 and 2006 I believe, both working great). Considering the TI 84 Plus CE is at this price range, I think the price of this calculator is very competitive. I'd recommend it over the TI 84 Plus CE, but not ovet the HP Prime. Eventually I plan to install KhiCAS on it, and see if I like it better, but as far as I know it's the 2nd best modern calculator out there, but this is subjective as I have seen people who love the document-like setup and the menus and cleaner looks vs a more conventional look. I will update this review after a few more months of usage