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

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 had to get this calculator for one of my engineering classes and it is amazing. It easily does pages of algebra in a second. And has great features for taking notes.

I used this for both of my college algebra classes! The only bad thing I have to say about this is that I wished I would have had this in high school! It would have saved countless hours of math homework time! But I am glad that I know how to do the problems without a calculator, but it does help save A LOT of time. If you are getting wrong answers, it is because you are not entering in the stuff correctly. My teacher showed the class how to enter in the problems so I had no trouble with it. You can google how to use it if you are confused.

This calculator has been amazing so far, a great resource while I pursue a degree in electrical engineering. That said, the software license is only for one year. Nowhere in the description is this mentioned. It almost seems as though they want you to believe it is perpetual, it is not and this does seem somewhat shady.

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.

My kids needed this for school, good price and arrived quickly

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

Es excepcional resolviendo operaciones que pueden llegar a ser muy complicadas. La uso para mi pregrado en ingeniería química pero es útil en muchas otras ingenierías. Tiene gran variedad de funciones, es potente y realiza cálculos y gráficas rápidamente. Al ser una herramienta compacta y completa, me ayuda mucho. Vale la pena.

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.

The only thing that I do not care for is the Graphics interface for displaying Calculus derivatives. I can not find anything very tutorial that will allow me to enter a family of equations required for (for example) the spring-mass system or pendulum equations with damping and resistance. I am probably just not doing it right but I can not figure out what I am doing wrong and I have bought and read all 3 books relating to the TI-Nspire. none deal with second-order families of derivatives.