Texas Instruments TI 36 X-PRO

Need the read the manual as this calculator has so many functions, recommended for any science nerd like me!

French instructions. Fortunately English manual is online. Like most TI calculators complex calculations take a very long time compared to equivalent Casio. Try integral of tan(x) from 0 to 1.57079. 23 seconds! My 28 year old TI 83 takes 20 seconds , so the processor in the TI 36X pro is a quarter of a century behind the times. The case back is clip on instead of slide on and takes a while to find the best way to attach it – very clunky indeed. 5* because fewer stars do not get read. TI make improvements to the exterior of their calculators but inside is running on valves. I also have the equivalent Casio fx 991 CW. The integral took 6s. The Numworks graphical calculator took less than 1s.

I think this has to be the best calculator I have ever owned. It displays you working and the results in an easy to read layouts. It has all the modes I wil need for my work.It feels much more solid than my casio calculators and the button have a nice action that has a quality feel to them. This calculator is often show with the clip on case attached to the back of the calculator, giving it a odd look with the tab stuck out at the top. This is part of the covr that you cann clip onto the back or front when not using the device to protect it, the pictuee here does not show it.

Such a good calculator purchased for my finals in physics and the numerical solve function was very useful. The list of constants is very good and very time efficient. For physics calculations (once you know your way around it) is much more efficient than Casio equivalents. Highly recommend!

I was slightly put off this calculator when it arrived because it felt like it wasn't brand new. There was a 'low battery' message on the screen when I switched it on, and what looked like the remains of a previous calculation in the memory. This sours the experience.But leaving that aside, this is a pretty good calculator, even though it's been around for years virtually unchanged. I've always used Casio in the past, but I can see how this has some advantages. It feels simpler to use than the Casio fx-991EX for instance. Not much, but things like the multi-press buttons are a clever way to avoid menus and always having to use the 2nd function key. You'll have to study the specs in detail to find out where the two models really differ, but I don't think the Casio can solve equations as directly as this. But then the Casio has the super clever QR-code generator that puts your results in a web page you can access with your phone and copy/paste into documents. Swings and roundabouts. Both have more features than most humans will ever comprehend.I also think the Casio looks more stylish (this TI is borderline ugly to my eyes) and Casio's slide-on case feels faster and sturdier than the annoying and rattly clip-on case the TI comes with. On the other hand, on the TI, both the case and the calculator have non-slip rubber feet which makes it better to use on a desk. The Casio has a faster keyboard that I find hard to fault, but some may prefer the slightly more positive action of this TI.Their displays are about the same, which is to say not all that good because of the solar power. The Casio's might have more dots. Both have battery backup, but the Casio's battery is easy to get at in its own little compartment whereas you have to screw off the whole back cover to get at the one in the Texas.The point is that both this TI-36X Pro and the equivalent Casio are very highly developed and capable calculators that are as advanced as you'll probably be allowed to take into an exam and only one step below a graphing model. If you're using it in class, you might want to see what everyone else is using so you're not the odd-one-out when the tutor explains something that needs a calculator. Schools might even recommend one over the other.But a big part of the decision might be the price. The TI-36X Pro was much cheaper than the Casio when I bought it. If they were the same price, I would buy the Casio. But I'd be happy with either.

I normally use an HP calculator with RPN but I kept baffling my children with it when helping them with their maths homework so I wanted a powerful calculator that they could use too. I am really pleased with the TI 36x Pro. It is very simple to learn to use and has a lot of excellent features. It does numeric integration, matrix algebra (limited to 3x3 though), complex numbers and can solve cubic and quadratic equations plus all the other stuff that you'd expect from a scientific calculator. It's not programmable but there's a useful tabular function that lets you create a mini spreadsheet on the fly that I use a lot. I've found that using this covers 90% of the situations where I'd use the programming capabilites of another calculatorIf you don't need a graphing calculator you'd be hard pressed to find a better scientific calculator than this. If it wasn't for my personal preference for RPN, I'd use it all the time.

Really glad I bought this. Get a lot of comments from friends saying it looks "complicated", and it is a little weird at first if you've been using another brand for a long time, but it's actually pretty simple to use.The fact you can differentiate/ integrate is really useful, you can set up tables and it will find out a number of things about the data for you (such as the regression coefficient), you can write very complicated sums in a well formatted way... it's very powerful, I think. My personal favourite thing is you can cycle back through old answers and pluck them out to put in your current calculation, which saves a lot of time.Only downside is, because it's outside of the mainstream brands some examiners don't allow it. While I was allowed to use this at A level, at my university only Casio's are allowed, which is a pain.Also, my instructions were in French for some reason. A friend of mine bought the exact same calculator from here, and his were in English, so I don't know what happened there. The instructions can be found online, however.