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

Havent wrote a product review in a while, but this calculator warrants it. It does everything you can think of except graphing and that is a HUGE plus. First off, graphing calculators really are not needed. I took Calc 1, 2, and 3 without one. Instead of relying on a calculator, one should recognize the formats of the actual graph without having to graph it. Yes it can speed up calculations, like max and min, but you should do them by hand in school to actually learn what is going on. Graphing you should only check your work. But anyways, this thing is great. I have a HP 50g, love the CAS and wanted another HP calc. I had a TI 36 from years ago that I used as my basic calculator but the screen was dimming so I was looking for a replacement. I was surprised to see the features on this. I hate having to whip out my huge calculator to do simple stuff. I am an engineering student, but most of the time I dont need a lot of the features. Thats where the TI shines. Its non graphing, so it can be used on more exams. Professors wont know the capabilities of this thing. Matrices, vectors, stats.... easy as pie to enter. Just the other day my circuits professor asked the class to verify the answer and I was the first one to say yes. Its small and light, automatically turns off, and is solar powered. NICE! It will solve simultaneous equations, 3 x 3 matrices, quadratics, even diff equations in the menu. Even puts answers into its own variables automatically. Its been good so far, and I put my HP 50g in my desk drawer. Give me another year to try it on more advanced classes but honestly, anything short of you being in a research lab, and this calculator will easily get the job done. Probably the best feature I like is the fraction key. I always loved the way TI deals with fractions. Push one number, click a button, push another and there are your numerator and denominator. And it will show you in the complex fraction form the answer in the display. Then you can push one button above the enter key to display it in decimal format... So bottom line, the calc is 22 bucks, a stupendous value for what you get. And its fast. You dont have to wait that second or 2 for an answer. Time to get back to my physics hw.... :O)

I’m taking a business math class that requires me to do a huge volume of simple calculations for which my TI-92 graphing calculator (that has served me well for 20 years) is simply overkill. Of course it is capable of doing everything I need, but it’s huge and cumbersome to use for basic math. With a compact size and amazing price, TI-36X Pro is perfect for real-world (non-scientific) math. For anyone with experience using TI graphing calculators, this is the perfect choice thanks to the EOS™ (Equation Operating System), MathPrint™ display, and curated subset of functions and features found on the graphing models. First, MathPrint displays math on the screen just humans write it on paper. On TI-89 and TI-92 graphing calculators, this is called Pretty Print (this may be different on newer models). For example, with MathPrint enabled, the calculator will display 3². If disabled, it would display 3^2 (like a “business” or “scientific” calculator would). This is a simple example—MathPrint can display roots, stacked fractions, and more complex symbols and formatting. EOS is to TI calculators as iOS is to iPhones and iPads. It’s the basic software that makes TI calculators behave consistently and predictably. Notably, this means (when MathPrint is enabled), TI-36X Pro evaluates expressions left-to-right using the EOS order of operations (parentheses, functions such as log(), fractions, exponents and roots, negation, permutations and combinations, multiplication then division, addition then subtraction, and conversions). As with other EOS calculators, it understands implied multiplication (i.e., 2(3) will be interpreted as 2×3) and uses a dedicated negation symbol, entered with the () key. This makes it easy to tell the difference between a minus operator and a negation symbol on the screen as in “2 – 3”. While it doesn’t display graphs, the TI-36X Pro supports variable storage (x, y, z, t, a, b, c, d), hex/bin/oct entry and conversion, easy fraction – decimal (and mixed number) conversion, LCM/GCD, data tables, random dec/int generation, function table, operation storage and one-touch recall, unit conversions, equation solving (i.e. 8 = 2x, solve for x), polynomial solver, system solver (2x2 linear equations, 3x3 linear system), and plenty more.

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.

Ive owned everything from a free calculator that doubles as a pencil case to the TI-NSpire CX CAS with a color display. Aside from graphing, of course, this 36X does EVERYTHING better than any other calculator Ive used. The interface is incredible (fraction bars, scroll and multiple line functionality), it handles complex numbers like a champ, basic equation solving, even derivatives and integrals? So small but SO powerful. Just buy one.

Broke after a short term of use

This is my favorite calculator for nearly all calculations. Some of my favorite features: 1. Just one keystroke to put the exponent on a number in scientific notation. Ive always been annoyed by the fact that I have to do 2nd EE on TI 83s and TI84s and TI30XIIs to do that. (Do NOT use the 10 to the x key for scientific notation; that puts numbers in two memory locations.) 2. The multiple keys that you can hit twice or three times to change the operation, for example if you hit the sin key once you can calculate the sine of an angle, but if you hit it twice in succession it becomes the inverse sine. Same with the cos and tan keys, as well as an ln log key, e^ and 10^, and others. 3. Being able to hop in and out of expressing numbers as multiples of pi rapidly, and in and out of fraction to decimals rapidly. There are other features I like that dont come to mind right now, but those are the top favorites for me. My gripe had been the silver color of the operation keys along the right side. (The divide by, multiplication, subtraction, and addition keys.) I fixed that by cutting a white label into a narrow strip, sticking it just to the right of those keys, and writing the operations on that so theyre easy to read. Otherwise I had to look close at those keys, and in some lighting situations they were too hard to see (virtually impossible in dim light). I thought maybe I could doctor up the indentations with a very fine paintbrush and black paint, but the label was quick and easy.

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.

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.

Great product. I just broke it accidently. Sorry.

Muy funcional