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The Casio FX-991CW is a solar-powered advanced scientific calculator featuring a high-resolution 2.25-inch LCD screen that displays complex data like spreadsheets and 4x4 matrices. It supports 552 functions including numeric integration, differentiation, vector, and inequality calculations, making it ideal for middle school to college-level math. With a natural textbook display and a strong user rating, it’s a reliable tool for professionals and students aiming to master advanced mathematics.
| ASIN | B0BSJ33C4R |
| Best Sellers Rank | #901 in Office Products ( See Top 100 in Office Products ) #8 in Scientific Calculators |
| Brand | Casio |
| Calculator Type | Engineering/Scientific |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.7 out of 5 stars 2,151 Reviews |
| Display Type | LCD |
| Enclosure Material | Plastic |
| Item Dimensions L x W | 7.7L x 16.2W centimeters |
| Item Type Name | Casio Advanced Scientific Calculator |
| Item Weight | 3.35 Ounces |
| Manufacturer | Casio |
| Mfr Part Number | FX-991EX |
| Model Name | FX-991CW |
| Model Number | FX-991CW |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Number of Items | 1 |
| Number of batteries | 1 LR44 batteries required. (included) |
| Power Source | Solar Powered |
| Power source | Solar Powered |
| Screen Size | 2.25 Inches |
| Screen size | 2.25 Inches |
| UPC | 889232615011 |
| Unit Count | 1 Count |
| Warranty Description | 1 YEAR |
R**A
Best calculator <3
Best calculator i ever used it does need time to learn but honestly didn’t deter me from loving it
T**A
Good one
Good item... For starting high school
E**A
Ok
Ok
A**I
very unnecessary complex ways to find the solution
it does every calculation needed but I got it instead of fx991ex and it is very complex to use to do simple differentiation you have to press so many buttons to get to it and its not clear I had to google it to know where it was while ALL the other calculators have the differentiation and integration as a one button Also to change the format from decimals to fractions and the other way you have to press many buttons it is the same for Eng notation
A**I
What I expected
I expected it to have an lcm feature but it’s alright.
R**N
Very amazing product
Small PC:)
M**O
Ottima
Ottima per i calcoli e le funzioni che ha sono legittime e funzionali
F**O
Excellent calculator with great features
The Casio fx-991CW is an excellent calculator with very good performance and a wide range of useful features. It is easy to use, fast, and well designed, making it perfect for students and professionals who need reliable calculations. The display is clear and the overall build quality feels solid and durable. I also want to highlight that the Amazon delivery time was reasonable, especially considering that this was an international transaction. The product arrived well packaged and in perfect condition. Overall, I am very satisfied with this purchase and would definitely recommend this calculator.
D**H
A Perfect Calculator
I got this for my son in Grade 10. It has 500+ functions in total. Clearly he's not going to need all of them. But, it 10 minutes, with the help of the 150 page PDF, it was easy enough to figure out how to do some of the basic algebra and trigonometry functions that he needs. The screen is a nice size. It shows equations, fractions, and decimals. It's clear and easy to read. You can have spreadsheets and data tables. We didn't get the calculator for all those features, but they're available. It comes with a protective case that covers the screen and buttons. The cover, when removed, clips on the back so it's easy to store.
P**O
Excelente calculadora científica
Ótima calculadora científica, de qualidade. Esta versão sem o LA (creio que seja de Latin America), não possui idioma português, somente inglês. Comprei já sabendo disso e pra mim, tudo tranquilo.
S**0
حاسبة
عملية للمدارس
Trustpilot
1 week ago
4 days ago