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

Awesome calculator will do just about anything you throw at it. Interface is ok, on par with other TIs. Its just a matter of finding out how to do something. The main menu is a little awkward. Need a touch screen as the curser is archaic. Need 2nd entry shortcut. Great once you get used to it, but why not make it more intuitive. Dont know of a better calculator...

One choice of standard calculation rectangles needed for continuing education courses and their tests. Why not a touch screen? Why not at least ThinkPad-like pointing nub instead of the dodgy touch thing right in the middle of the D-pad? Unsurprisingly, the average budget-conscious phone will do a better job with some of the free stuffs out there... EDIT: Three stars removed because: 1) The desktop software requires a yearly license to renew, and is the only OFFLINE way to manage files on the device. TI offers free ONLINE software for file management - because adult students cant be trusted? 2) It is not (yet?) possible to invoke native CAS functionality in a Python script. The single most obvious thing someone would want to do with Python on a CAS-enabled calculator, and it isnt there... 3) The unit is essentially glued shut. There are two hidden screws, the heads of which are underneath the translucent plastic screen cover with the silkscreen print on the glued side. DIY maintenance would entail removing the screen cover, most likely cracking or damaging it. This is a BIG problem if too much dust accumulates inside the unit. Dust and grime gets in from the TOP around buttons and onto the top of the silicone button pad internally as buttons are pressed. This can cause problems with sticky buttons, among other obvious things.

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.

With the price point of new TI Graphing calculators being so close, from the standpoint of cost alone it makes sense to get one of these rather than a new TI-83 Plus, TI-84 Color, or TI-89 Titanium, since this calculator can do so much more than any of those other models. The user interface (in terms of buttons and what is on-screen) of the nspire series of calculators strays fairly drastically from the traditional TI graphing calculators, so if you are buying this calculator for school, you should plan to spend some time out of class getting used to how to do things on it. You dont want to be struggling through calculations when in a time crunch of a test, for example. I recommended this calculator for all serious math and engineering students. Im so glad I bought one.

Love it and love the software it comes with

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!

I bought this for quite a lot of money, and when I tried it out, it had a lot of advantages and features. It has a notepad for writing whatever you want (you can even put math on the notes), spreadsheet, graph, statistics, and geometry. Theres even DataQuest, which I dont have the resources to use it, but if I come to a college, and I have a math or science class that uses it, then Ill be more happy to try it out. I can even play games (and yes, you can use an emulator to play NES, SNES, GBA, etc., but you need to install an app called Ndless for the TI n-spire CX II CAS (or whatever n-spire you use)). The battery lasts a long time without plugging it in. The good news, is that the calculator comes with a tutorial, on how to use the calculator, called Getting Started, (and also Getting Started Python) in the Browse option on the main menu, in a folder called Examples. I suggest trying it out. It even comes with something called scratchpad, where you dont need to create a document in order to perform quick calculations and graphs; you can just do it directly on the scratchpad with the press of a button. Great calculator, I recommend it to a college student, and/or whoever wants some high-tech for calculating stuff!

It is a great calculator and was a good improvement over my ti-84 that I had for a few years. If you have previously used calculators with graphing functionality and are they type of person who likes to pick through the settings It is very easy to get used to. Depending on if I remember to turn it off when I am done I can get it to last around 2 weeks on a single charge and despite the long lasting battery processing speed on this calculator is much better then ones I have previously used. I am currently an engineering student and having a good calculator can make a huge difference in ones studies.

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 is the best calculator I ever purchased. The battery life is top-notch as I have used it for weeks on end without worrying about charging (keep in mind I dont use it everyday/ all day). The ability to learn how it functions is relatively easy. Operational videos on 3rd party sites will definitely provide you with the necessary insight. Lastly, the interface is okay as it can be overwhelming for someone new to the TI Calculator series.