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

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?

Nice quality, new and unused. This calculator provides all of the functions my high school needs for his advanced algebra class. My 8th grader also needs one this year, which is good news because she should be able to use it when she is in high school, as well. The display size is not as big as a full graphing calculator, but it is still a decent size. My son wears glasses and hasn’t complained about not being able to see the screen. Great value.

Let me start by saying I've been using the TI-84 plus CE calculator for 7 years now. However, as a civil engineering student in university, I'm not allowed to use that calculator in my classes or on my exams because it has too many features that does the work for me. I also cannot use it for my FE or PE exams when I want to get certified as an engineer. So I had to downgrade and buy this one. If you're a civil engineering major, this is the next best calculator that's FE/PE certified. It has the most features and it's the most similar to the newer calculator versions. After being so familiar with a calculator for 7 years, it's hard to switch to another one. But it only took me a minute or two of fiddling around with the 36-X PRO before I got the hang of the different buttons and command locations. I also LOVE that I don't have to worry about charging it! I can't count the amount of times I would sit down in class or at home and take out my 84 plus CE for an assignment or homework and it would be out of battery. It was such a pain to remember to charge it.Note: Even if you're not an engineering major, and you're just in high school or college, get this calculator! I started using my TI-84 plus CE in 8th grade and these types of calculators are a lifesaver. It'll help you in the long run and save you a lot of time and effort instead of using a scientific calculator. It has so many useful functions can really help you when you're on crunch time in an exam or something like that. 10/10!

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.

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.