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

I despise this calculator. As a point of reference, my favorite graphing calc is the TI-89: the terminal-like interface woven into a sorta-windowed OS was perfect. The N-spire is the antithesis of TI-89: I have to make a new document to do anything beyond scratchpad calculations, which only seems justifiable as a method to prevent the calculator from becoming a gaming or cheating device by removing ALL flexibility and ignoring adult users who dont take standardized tests and can game if and when they please. This forces professionals like myself into this pedantic and arcane document system, so we cant just eg. write a quick function and use it flexibly if and when needed. Instead, everything is a laborious set of steps to follow; Even writing functions on the scratchpad is tedious because it only offers half the screen for editing!! Further, I think tokenizing everything is ridiculous and unnecessary; Where variables and functions end up being saved is completely opaque; The touchpad moves the cursor when pressing or tapping to select; And while Im not adverse to thoughtful and functional changes, I dont see why the placement of nearly EVERYthing had to be revised from the TI-8x series: Im CONSTANTLY trying to remember the six or seven steps required to do something that was only one or two steps max two decades ago. But the final nail in the coffin: dedicated ALPHABETICAL keyboard in a region (North America) where EVERY device with a keyboard has Qwerty (and most have touchscreens)! This really feels like a device created by educational elitists that dont realize (or have forgotten) that calculator games were a gateway to a lifetime of programming for an entire generation who now make the devices and apps enjoyed by billions.

This is a massive step up from my TI-84. I had been using them my whole life and my school recommended it. Im going off the college and decided to splurge on a nice, new calculator and this one was great. CAS system saves me from my awful algebra mistakes and I can easily verify my calculus. The ability to also write simply Python code is lovely as well. Highly recommend if youre in the market for your next calculator, but there is a learning curve fyi.

Texas Instruments has a reputation for quality hand held calculators and the NSpire CXII CAS is no exception. Like any device this rich in features, there is a learning curve to master it. However, TI offers plenty of support with downloadable guides to get you started or to master their devices, including a general and Python programming tutorial in memory! My only question is why this is not available in Japan? I shopped many stores and although all the models of Casio and Sharp were available there was never any TI products. Amazon Japan offered but more expensive than Amazon.com even with international shipping. I hope TI does a better job of international marketing for their fine products.

This thing is incredibly cheaply constructed and plasticy! The interface is ridiculously non-intuitive and the buttons barely work. Trying to use the touch screen is nothing if not nearly impossible. I had a TI-86 that worked great for over 20 years, and this thing is truly garbage by comparison. I would also like to review the reviewers of this product because I see this again and again. I couldnt understand how anyone could give this pos more than one star, so I looked at the four star reviews...The vast majority of people have really negative stuff to say about this pos, but they still gave it four stars!!!? People: you really need to grow up and give star ratings that reflect what you say not rate something high because psychologically you dont want to admit you got ripped off!

Its intuitive to use and after 2 days of practice you can get around it. Keep the booklet handy for when you need to remember how to do some more exotic stuff. You can create and edit python scripts on it ,from the device ,and the python library has all you need. Doesnt have 3rd party python libs ,but you can add them or copy the files. This python capability comes in handy if you need to roll your own stuff to help you. Build quality is good and it doesnt feel like cheap plastic.The battery seems to be accessed by unscrewing the back lid so this should make battery replacement easy. Quite nice mini computer to have around to help you.

My high school sophomore is blown away by how awesome this is. Good…because of how much it cost.

The calculator has a great array of functions for different kinds of math, and good software capabilities. Main drawback is that the UI and controls are difficult to navigate, will require a lot of getting used to

My son is very happy with this calculator. It is a great help in your career as a civil engineer

This calculator was an upgrade to my TI-84, as I needed the Nspire for the imaginary portion of my Intro to Circuits class. The calculator has a lot of functions and can solve almost anything for you, including Calculus, Statistics, and can even run some games if you install them. The main drawback are the buttons, which are much less user-friendly than the classic TI-84. The buttons do not give much physical feedback compared to the 84, are much more noisy, but most importantly, sometimes it seems that the numbers do not always register, so you always have to max sure you are inputting what you are clicking.

I use this calculator as a graduate student and professionally in the EE field. The calculator itself is great, but it’s the CAS software that interfaces with the calculator itself that makes it great. The addition of user-defined Python scripts is the greatest thing about this newer Nspire model. It’s worth every penny so you can create user-defined Python scripts for common problems with redundant input directly from the calculators interface.