Texas Instruments TI-36X Pro Engineering/Scientific Calculator | 9.7 Inch | Black.

I bought this for my chemistry class. I would suggest going to YouTube and looking for videos instead of reading the manual. It a lot easier.

For taking NCEES licensing exams, such as the FE and PE, this TI-36X Pro is one of the better calculator options. There are a couple caveats that make this a 3/5 at most though. First, the screen. It has nowhere near the contrast shown in the photos. Mine is sorta blueish and hard to read unless there is light right behind you. Its also very blocky and pixelated looking. Second, the right column of metalic buttons are just awful. Hard to read unless there is just the right lighting. It seems there is a much better TI calculator option, the TI-30X Pro Mathprint. However wasnt positive if that is allowed on the licensing exams (although it should be, they do say All TI-30X and TI-36X models)... so I bought this.

Even though Im not a heavy user of calculators, I like em. Last count I had about 30 around the house. I especially like owning the best out there...just to play with. Weird, I know. Even though I own high end CAS models in TI and HP, these require opening the manual just to navigate around the keypad and menus. I dont want to fire up a tank when a jeep will do. My primary area of mathematical interest is in number theory. Scientific calcs generally fail miserable for this purpose. But, for the most part, graphing functionality is not that critical to me. I frequently work on problems involving prime numbers, so I like that the TI-36X Pro can factor numbers upto 1,000,000, find gcd and lcm, do modular arithmetic, has good functionality with arrays and lists, including generating them by specifying a range of arguments for a function. The screen also displays in textbook format. The Ti-36X Pro provides all this while being about half the volume and weight of a typical graphing calc, and a fraction of the cost. Another advantage is the solar panel and button cell that run it. The power consumption of the cpu in graphing calcs is beyond what solar power can reasonably provide, and some eat AAAs like Cheerios. Because the TI-36X Pro is chip based rather than separate cpu and operating system, it does not have a full programming language and cannot be customized with apps, backed up or interfaced with a computer - features that most graphing calcs now provide. But the TI36X Pro is my current favorite for number theory operations that would otherwise require a spreadsheet or a graphing calc. Its also a great scientific calc, with a full quiver of operations for calculus, statistics, vectors, matrices, solvers, base conversion, etc. CAS would be nice, but this is impractical to developed for a chip based calc. I suspect you wont find a calc with more functionality without going to an o/s and cpu bases unit. Ok, its wonderful. There is a minor display problem (documented on Wikipedia) which may concern some, but I regard it as trivial. Now for my one peeve about this calc and how I resolved it. The shiny chrome buttons are too hard to read unless angled just right. Maybe you have better eyes than mine. Maybe you would just memorize these few buttons. But I couldnt live with it. Not a problem, I love taking things apart. I found the TI-30XS to have the same outer shell, so I swapped the enter and 4 math operator buttons between them. Unfortunately, access to the buttons is was more difficult than expected. Instead of finding the usual mounting screws for a circuit board, this calc has the board mounted by moulded plastic fasteners. It was designed to be permanently assembled, making what should have been a simple modification quite challenging. I used a soldering iron, but wasnt convinced this was the best way. Im not suggesting or recommending you try this (and will not be responsible for your results)! It could easily be botched. I did each disassembly / reassembly step on the TI-30XS first to have that experience before doing the same on the Pro. Be prepared to sacrifice at least the TI-30SX. I managed to get both reassembled, but ended up with my sin button upside down on the Pro and have been reluctant to disassemble it again, because remelting the fasteners would deteriorate the plastic further. There is a high probability for not getting one or both of the circuit boards to remount. If this happens, you could try inserting a thin piece of closed cell foam between the board and case back to provide enough pressure to hold the board in place during key presses.

The overall calculator is amazing and its fast working but the buttons are small and a little hard to real so if you cant see close up buy something else other than that its a pretty decent calculator

The calculator can do many things, including dot product, cross product, magnitude. I also find it easy easy to use.

This Calculator is good over all, highly recommend for students that are taking pre-cal or cal. This product came in un-use brand new, the package and everything was sealed but I notices that the buttons are a little shifted. The buttons are a little tipped over and some are shifted downwards

Originally bought a TI-89 Titanium and a TI-nspire CX 2 (Both with CAS) for school. Although it did everything and looked spiffy, 75%-90% of my classes didnt allow us to use it (apparently the CAS and other features do everything for you, who knew?). Once into my sophomore year (this year), something called COVID has placed most classes online making difficult to exclude those spiffy calculators. Any way we were told even though we may WANT to use the nspires and 89s, we need to get used to the calculators allowed on the FE exam. Enter the TI-36X Pro. This thing does just about every thing the spiffy ones can do, but still looks like those old solar powered ones you used to punch 58008 and tell someone to read upside down. Except this little bastard is powerful! Integrals, derivatives, vectors (dot and cross function in the vector menu, no need to write up a matrix and remember that ridiculous formula), solver, system solver for multi variables. This thing can do some serious damage even on a calc 3 exam, and its solar powered so you dont need to remember to charge it or bring spare batteries. Obviously the other beast calcs can graph and this cant. Other than that this thing is incredible for its price!!!! The only downside I would say is that it looks intimidating to use, and has a SLIGHT learning curve to it. BUT if you are going into a Science field and cant learn to use this, then you need to change your major ASAP!!! HIGHLY recommend getting this calculator for any college freshmen that will be majoring in Engineering, perfect for the student budget, and still can whoop some ass.

I’m in pre cal and my professor won’t allow us to use graphing calculators, so I’ve looked around at several different scientific calculators and While there are a ton of features the pro should have, overall it does include everything you need plus a few enhancement tools, like the solver, and it’s ability to provide exact and irrational answers. Although the pro is hands down the best scientific calculator on the market, it could definitely use some upgrades to make life easier. 1. I wish it allowed you to create a table for more than one function at a time for comparison purposes. 2. Formula memory!! Why does this only have one formula memory slot? (FYI there is a scientific calculator from Sharp that allows you to store up to 4 formulas but it doesn’t have a table mode.) 3. QR codes. I came across the Casio class wiz scientific calculator and it lets you generate a qr code from a table you created and view its graph from your phone. It also has a spreadsheet function. Only didn’t buy because it erases your work once it turns off. I love that you can turn off the TI 36xpro and when you turn it back on again, all your calculations are still there. 4) >,=, and < signs. When I’m making tables, sometimes I only want to see results within a specific range so being able to tell the calculator you’re only looking for values within a desired range would be significantly helpful!

This calculator calculates numbers correctly.

I am a fan of this calculator, it is an updated version of the one I used through high school and part of college. I got this for my son for high school, it took a little bit to teach his some of the functions, but it made a real difference once he got the hang of it. It is something that is worth every penny.