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

The TI-36X Pro is hands-down one of the best non-graphing calculators out there. I’ve been using it for engineering coursework, and it handles complex math, statistics, and scientific functions like a champ. The display is super clear, and I love the multi-line screen that lets you see inputs and results at the same time — way better than older models. It's intuitive once you get used to the layout, and the functionality is top-notch for everything from calculus to matrix operations. Also love that it’s permitted in exams where graphing calculators aren’t allowed — huge bonus! Solid build, sleek design, and definitely worth the investment if you're in any technical field.

Great calculator for STEM/Engineering students. It has most features you need for courses where only scientific and non-graphing/programmable calculators are permitted. Definitely has a learning curve if you intend to use many of its features but it is worth the time. Size-wise, it's slim and light-weighted compared to other graphing/programmable calculators (my favorite trait of TI-36X Pro). If your kid is going to college soon, buy them at least two of these.

I use this calculator every day in my field of work (surveying) and I don't think I will use another model or brand for quite a while. While I dont utilize every aspect of the calculator, I find that the value storage and four-line screen make a lot of what I do very convenient. The calculator has a pretty decent memory bank if you ever need to go back through your calculation history. My calculator has been exposed to rain, sweat, dust, cold, and heat and is still trucking. I leave it on my dash in the middle of summer under a hot Texas sun and have yet to run into any issues. The calculator is large enough that I'm not fat-fingering keys, but small and slim enough to throw in any pocket comfortably. Great tool!

Works as expected. Arrived promptly and is great for school

This is an easy-to-use calculator with plenty of functionality. Quite feature-packed, including a pretty print Fractions display. However, the arrow keys would have been more useful if they were independent buttons, and the LCD could be higher contrast to make it easier to read in dimmer lighting. This is a good calculator before moving on to something more advanced like a graphing calculator. With this calculator, you can perform basic levels algebra, including functionality for solving multiple linear equations and root finding for polynomials.

My son uses it everyday at school. It is very helpful to him and has so many great features. His teacher even told him it was a great device. Excellent price.

I bought this calculator when my old machine shop calculator died from being dropped too many times. There are a few things to note about this calculator for this type of calculation. And since I'm a retired mathematics teacher, I know a thing or two about calculators in education. First, this seems like a great choice for use in a machine shop. I need a high quality and durable calculator with trigonometric functions. This calculator is all that and more. The multi-line display is also convenient for seeing a record of previous keystrokes. Its quite a bit lighter than the old graphing calculator I was using, and I'm hoping that will make it more durable--lighter objects hit the floor with less force than heavier ones. This calculator has enough capability for educational use IF you don't need (or are not allowed to use) graphing or computer algebra functions. It is not a graphing calculator. And it won't do computer algebra operations such as solving equations, computing derivatives, etc. It's probably not the best choice for linear algebra (matrices, vectors, ...) or for advanced statistics. But it does have all the numerical functions you would expect to find in a classic scientific calculator. Last note is that this calculator has a snap-on lid instead of the old slide-on style I'm accustomed to (like on the TI-84). It's too early to say whether I like it more or less. Its definitely faster: just clip it on or off. But will it hang-on or survive as well as the old slide-on style if you occasionally drop it on a concrete floor?

This calculator packs a punch, and I love it. I used to primarily use a TI-84 as a physics major, but I had to purchase this calculator (TI-36X) for an engineering course. I was surprised to discover how useful it is, so I now use this primarily for both lab and lecture courses. It is easily portable and does not require a charging cord, so I never have to worry about not having a charged calculator for an exam. There are several useful functions I use often--the definite integral function being one of them. This calculator can also solve simple systems of equations. These are great for double checking hand calculations during an exam or lab. The rational number function is also great, and it will provide answers as fractions that can be turned into decimals. I am also able to switch back and forth between scientific and engineering mode, which is also very convenient for expressing answers in SI units with prefixes. Although it may seem like a "downgrade" from my TI-84, I really do not see it that way. I like having a simple calculator for exams and daily use. Compared to my TI-84, I am able to crunch numbers more quickly, in my opinion. Of course, I still use both calculators, but this one is my favorite of the two for these reasons. The only problem I have really ever experienced with this calculator is that there is a limit to the number of "entries" that you can type at once. I ran into this problem while computing several exponentials at once, but things can always be broken down into separate calculations.