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

This is practically a cheat code computer in your pocket.

This calculator is jam packed full of features and functions. Definitely worth the hefty price tag for anyone majoring in engineering, physics, math, etc. Not as intuitive as using a TI83 or TI84, but far more powerful. The rechargeable battery also lasts a really long time, with a very long standby period.

Awesome calculator. It really helps my daughter with her school work

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.

Im an adult engineering professional, not a student. Really like the CAS system that solves, simplifies, factors, expands, etc. algebraic expressions. No need to convert systems of equations to matrices. No worrying about silly mistakes in algebra. I really like that expressions can be variables, makes substitution super easy. Im coming from a TI-82 (it still works!) so I felt fairly comfortable, but still had to watch a few YouTube videos to get the gist of documents and an overview of the features. Read the manuals, watch videos, google, etc and the fun and power slowly reveals itself. I installed the software, calculator comes with a license but you have to download from TIs site. Used the software to upgrade the firmware to latest version no problem, transfer files to and from calculator, and the software emulates the calculator so you can use your computer for editing, screen sharing, etc. All very cool. Build seems solid, though not as rugged feeling as my old TI-82 which is built like a tank and survived many drops and abuse. Bought a padded case for this one, which I dont think is needed for the older models.

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!

If your kiddo (or you) plan to use this behind algebra, then this is a good buy. I got this for my kid in 8th grade for algebra because he is bent toward math, physics and engineering. It is a complex tool with functions the basic algebra teacher will not have an appreciation for your kiddo using. My son used his class ser TI-82 for most work and this little computer mainframe in a calculator package here for his homework and other inventions. It does a lot. It is expensive if you are just using for algebra one year.

Love it and love the software it comes with

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.

En mi vida de estudiante de ingeniería tuve una Casio fx 750. Hoy después de 20 años como profesor universitario encuentro esta calculadora imprescindible para un conocimiento claro y eficiente en todas las áreas de la ingeniería civil. La estoy recomendando a mis estudiantes. El interfaz de usuario mediante PC es muy sencillo, la curva de aprendizaje ha sido buena y cada día descubro cosas nuevas. Tiene un gran potencial. La batería es recargable y rápida, lo hago con el cable al PC. Lenguajes de programación; TI- Basic, phython y Lua, solo la he trabajado con TI- Basic.