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📊 Elevate your calculations with precision and style — don’t get left behind!
The Casio fx-991ES Plus 2 is a professional-grade scientific calculator featuring 417 functions, including advanced calculus and statistics tools. Its natural textbook display mirrors formulas as seen in textbooks, enhancing clarity and reducing errors. Powered by both solar energy and a battery, it guarantees reliable performance in any setting. Compact and lightweight, it’s the perfect companion for students and professionals who demand accuracy and convenience on the go.
| ASIN | B082LGR56M |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #21,418 in Office Products ( See Top 100 in Office Products ) #30 in Scientific Calculators |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,981) |
| Date First Available | December 13, 2019 |
| Item Weight | 3.35 ounces |
| Item model number | fx-991ES PLUS-2 |
| Manufacturer | CASIO |
| Product Dimensions | 6.38 x 2.95 x 0.1 inches |
N**N
Perfect!
Got this for my daughter who needed it in college for chemistry classes. She said it works great! Would recommend.
M**H
Perfect balance of features and price
I do electronics engineering and I always need to calculate semi-complex stuff. A non scientific calculator is a pain and I find that the ti-84 is a bit much if you’re not doing advanced math or statistics. This calculator is perfect for the bench calculations while designing circuits. Plus because it’s not a small fortune, I carry it around all the time without worry of dropping it etc. my colleagues call me Egon now because I just pull out the calculator and start calculating in random situations and conversations. For the price, you really can’t go wrong.
D**R
Good
Good for school
J**Y
Scientific Calculator
I love it i git what I want easy to use specifically for FE Preparation
S**E
Works really well
Perfect 👌
Y**Y
Perfect
Exactly as in the picture
M**I
Calculator
Excellent
J**S
Excelente producto
Excelente producto
M**O
Si estás buscando una calculadora científica completa y fiable, esta es la mejor opción del mercado. Tiene tapa protectora, ideal para llevarla sin preocuparte por golpes o arañazos. Además, al ser Casio, viene con la garantía de calidad de una marca de confianza. Lo que más me ha gustado es su función de notación natural: las operaciones y fracciones se ven igual que en los libros, lo que facilita muchísimo el trabajo y evita errores al interpretar resultados. Es rápida, precisa y muy intuitiva. En resumen, una calculadora inmejorable para estudiantes de secundaria, bachillerato e incluso universidad. ¡Un acierto total!
N**L
Bardzo dobry - kupiłem dla syna studenta - zachwycony
M**I
Excellent
J**S
Great calculator compact durable has all the functions you ever need would recommend
L**P
Five stars, since it is a decent, and affordable calculator for highschoolers. Personally, I was looking for something more, but this got pretty much the essentials; - binary/octal/decimal/hexadecimal conversions - imaginary numbers - summation - decent display utilising a matrix dot display. I am a bit disappointed with how it does seem clunky to use at times, and the interface is rather inconsistent. (eg. ×10ⁿ being one unit / seperate) Furthermore, other modes feel... limited.