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Your cart is empty.A high performance scientific calculator with high resolution display increasing the amount of information displayed and super fast calculation speed for testing or performing the most advance mathematics. High resolution LCD screen allows viewing of more information like spreadsheets and 4x4 matrix calculations. This calculator has a comprehensive set of advanced calculations for integration & differential calculus, along with vector and inequality calculations. For middle school, high school and college math courses.
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Reviewed in the United Kingdom on February 9, 2025
Good for A level Maths.
Really amazing product! Thanks to Samsung and
Reviewed in the United Arab Emirates on February 26, 2025
Small PC:)
Randhal
Reviewed in the United States on February 24, 2025
Excellent, it has a learning curve, and functions are hidden within the menus.
Cristian
Reviewed in the United States on February 22, 2025
it’s nice, really lightweight , lot of functions
Customer
Reviewed in the United States on February 2, 2025
A semester in the calculator works well, buttons are tactile and responsive. The main quality of life improvements u notice is the surd function and fractional answers, the fact u can modify the display to suit ur eyes, accuracy is a plus and its durability. The calculator interface is refreshing, readability is eased . Its great value given the graphing function although accessed through ur phone on a website with the QR. The school use is exceptional, and relevant to my Pre Engineering classes and would be using it for my further degree. However in exam time they did call my casio calculator a semi-programmable, had to pull out my sharp and dust off the codes and functions I memorized. The examiners allowed the older model casio class Wiz which is more button oriented than this one which is screen oriented. 🤔 given a university scenario I did have my doubts on that exam certified. If anything I'll invest in the older model casio class wiz. As well
Antonio Noriega
Reviewed in the United States on February 15, 2025
Excellent calculator, perfect for middle and high school the performance is good, better than the 570 series
João Pedro Mineiro
Reviewed in Brazil on February 15, 2025
Muito boa a calculadora e resistência!
Aiden
Reviewed in the United States on January 13, 2025
Has a nice huge display, really simple to use, really effective. I managed to pass my physics class using this and I hope to pass many more in the future with this. I had a casio calc prior to this and it has done me wonders but it didn't have much functionality which is why I upgraded to this. Casio is a brand I trust and will continue to trust.
Kyle Stevens
Reviewed in the United States on December 9, 2024
For 20 bucks this calculator is perfect. Way less frustrating than my old Texas instrument. Super easy to work.
bos20k
Reviewed in the United States on December 26, 2024
So long as you don't need graphs, this is the best calculator you can buy. It has capabilities far beyond most graphing calculators.
Luis117
Reviewed in Mexico on December 20, 2024
La calculadora tiene muchas funciones, una nueva interfaz y actualización de distribución de software y hardware (hablando de botones), que quizá a muchos no les gustó, pero fuera de eso, es de buena calidad y bonita.En cuanto al vendedor, hice las investigaciones pertinentes y puedo confirmar que es original, al principio me resultó extraño por el paquete, pero revisando los datos en la página Casio, esté me dió el visto bueno con mi calculadora.
Jiri Lebl
Reviewed in the United States on October 23, 2024
I bought this mostly to see the difference between the fx-115es+ which I use at my desk. I like some of the pros, but there are a few big cons. Compared to the 115: Pros: 4th deg polys and 4x4 systems, a bit easier to navigate, handling variables (see them all at once, pick and assign) and stat output is much much simpler to see (just see it all at once instead of picking single values from the menu to see. Cons: Way fewer things on the keyboard, including some fairly often used ones like the exponential (to compute e^2 now you have to press shift, 8 (e), []^[], 2). Then they put 3 different logs on the keyboard with the general one in the unshifted position. Way more sensible on the 115. Some keys don't even have shifted variants. And some things just have way too many ways to be accomplished (while some things you have to use the menu for compared to the 115 as if we're missing room on the keyboard). E.g.: There are two ways to type x, 4 ways to type 1/9 (you could use the division bar, the divide button, you could use the ^-1 key and the general power key with -1. So we're getting all that but no quick way to write the exponential and the natural log is under shift? OK, some of these are also on the 115, but at least I don't feel like the useful ones got hidden there to make room for many ways to do one thing. Some keys don't even have shift variants, as if you really should just use a menu for everything. Then a bunch of features are missing for some reason. There is also the rather pointless QR gimmick eating up another space on the keyboard. That could have been in a menu given how few places it comes up even if one would want to use it.The final and huge con (though the 115 suffers the same thing to some degree) is that history gets erased when 1) you change modes, 2) you press "back" one too many times (that is infuriating and annoying as you use "back" in menus) 3) When you press "home". What's more infuriating is that they added "undo" where it is not needed, but you can easily erase all history by just an errant keypress, it's almost like rubbing it in your face. 115 does the same thing, but because of the lack of the back button, it's less likely to erase history by mistake.Also, why is there still a separate complex mode. What's the point. Why not just handle complex numbers in the main compute mode. That just doesn't make sense to me. This way you have toAnd why does it still not handle complex exponentials and trig functions, I mean it's so easy to implement.Overall, it's easier to use than the 115 in some aspects, but the downsides are also quite bad. It's kind of a meh. Given a choice I'd pick the 115, though there are a few things I really like about the 991CW (like the variable menu).
twrks
Reviewed in Canada on August 30, 2023
Have the 991EX also, and yes it has some benefits if you are depending on muscle memory over a long period of time. But if you are a new user, or have multiple calculators that you go between, then this one is much more easier to get used to. Also there are many operations that are performed much faster on this one making up for the few more key presses you may have to do as compared to the 991EX. Most of all it has an Undo button. The font seems a lot more readable than its predecessor also. Though that is subjective.
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