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

This is obviously a very capable calculator which is why this gets 4 stars, but there are 2 things that I cant believe passed quality control. First one, when the calculator sits with its back in its sheath on the table and you type it will rock back and forth. I have a cheap Ti-36 that does not do this. My friend also bought this calculator and has the same issue. Second is it only lets you type super slow otherwise it stops recognizing the input, once again my dirt cheap Ti-36 does not have this problem and can accept a far higher input speed. For the money and given that this isnt the first iteration Id expect fundamental things like this not to be an issue. Also really not a fan of the baby blue as the only color option. Mathematically, no complaints, but thats to be expected, this is the top tier calculator. Also needs a higher res screen, its 2019.

I am horrible at math. I mean HORRIBLE! I bought this at the tail end of my algebra class and it was okay for what use I got out of it. Now I’m in Chemistry and omg, it has helped me so much! It’s been trial and error in trying to figure out the functions of this calculator but for someone who’s never used something like this, it was easy enough. I’m excited to use it in my Statistics class next term.

Love this calculator. If you happen to run into a funny error where the center button (track pad/ arrow keys are all one button), try restarting it (just off and on didnt work). Press DOC, ENTER, and EE, then click the reset button in the back with a pencil. Very fiddly to hold all 4 without a third hand, but I was able to hold it upright between my chin and my desk to have my hands available for the buttons. This fixed it immediately. Took me a while to find this fix online, and if the reset doesnt fix it, supposedly its a hardware issue, not software. Happy calculating everyone!

This thing is awesome. When calculating something like cos(pi/4), it automatically gives you sqrt2/2 instead of some long decimal. It also finds the derivative function rather than just the derivative at a point. Additionally, it will store an entire funtion, so you dont have to retype some long complicated funtion over and over, you can just hit (A), which the calculator knows is that function. These are things other calculators cant do. Some say that its hard to figure out, but its relatively easy to learn. I will note that a lot of this extra stuff is only with the CAS model of the nspire, so make sure you get that CAS version. Either way, this is a pretty awesome calculator. Plus, its approved for AP Calc tests!

Want to solve matrices of complex numbers? Its instant. Want to store values on the fly so you can plug them into equations? Use i_1 := ans and your last value is now stored as i_1 Want to write a formula on the fly so youre less likely the mess it up when doing it multiple times on an exam? coolFunctionName(x,y,z,p) := (x^2 - p*y/5)/(z(z+5/2*p). Now you can just enter your 4 variables coolFunctionName(var1, var2, var3, var4). Problem solved. I wrote a function that calculates parallel resistors. When you have 3+ parallel resistors, this is a huge time saver. This also lets you type out equations as you would write them on paper. Instead of just having a string of variables and symbols, you can clearly read your equation to reduce entry errors. Spend less time balancing parenthesis and more time getting work done. It does so much more than the TI-89. Solves problems almost instantly. There is a small learning curve because it works differently than other TI calculators, but it is so much quicker to use and so much more powerful. This latest version will even help with some rudimentary differential equations. It lets me focus on the material Im learning not spending unnecessary time computing tedious equations I mastered a year ago that are bringing minimal learning value/time spent. The programming language is still a little more rudimentary than Id like, but its very useful.

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 was a loyal HP-fan for 34 years, starting with the HP28s back in college. As an electrical engineer, I progressed through several upgrades up to the HP50g. Then I got the HP Prime, and at first I hated it, so ignored it for almost a year. But then it grew on me, and I kicked myself for not adapting to change sooner. But, there was always something annoying about the Prime, where for every convenience, there were almost two inconveniences. Then I decided to try the TI CX II CAS Student Software trial for 30 days, and I was blown away so I bought the calculator from Amazon! Why, oh why, did I torture myself with HP for so long?!?! Nearly everything about the TI is easier, and despite looking student-centric (which could be interpreted by some as a toy), I promise that this will be your work calculator. The document-based interface is exactly what I needed - I rewrote my HP applications for TI, including a few new ones, in a fraction of the time (the language is easier, the editor more intuitive, and the dedicated keyboard destroys HPs multi-click, illegible color scheme, keyboard). I wont bother looking at HP anymore - Im sticking with TI. There is no way to describe the experience with this calculator here - just buy it and if you dont like it, return it (but you wont!).

This may be the best calculator on the market, it definitely wasnt for me though! I figure it is more for programming than mathematics but I may be mistaken. The full keyboard served no purpose for me. I did not like the rocker type buttons for common math functions. I didnt like the scratch pad or the software layout. The keys were nowhere near a TI normal layout. I could go on....... Im a TI fan, been using them since the 90s but this one was not for me. I sent it back and replaced it with an HP Prime. Hopefully itll be a better fit for me.

This calculator is great for graphing and other appliances, but it is not that easy to learn to use all its functions. I still have not learned all of them. The packaging was good, however the calculator did not come with a charging box, just the cable. Overall great calculator and do recommend buying if you are taking high level courses in math.

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.