📊 Elevate your calculations — because precision is the new power move.
The Casio fx-991ES Plus 2 is a high-performance scientific calculator featuring 417 functions, including equation solving, calculus, and statistical analysis. Its natural textbook display mirrors formulas as seen in textbooks, enhancing clarity and reducing errors. Powered by both solar energy and a battery, it ensures reliability during exams and study sessions. Compact and exam-approved, it’s the go-to tool for secondary school, university students, and professionals preparing for certification tests.
| ASIN | B082LGR56M |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #22,592 in Office Products ( See Top 100 in Office Products ) #33 in Scientific Calculators |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,973) |
| 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.
E**E
Best Algebraic for FE/PE
Need to take the FE/PE? The test is limited to a few models. This is the best algebraic allowed: 1) good menu organization, easy to use 2) 2nd and 3rd degree polynomial solvers 3) 2 and 3 element matrices and vectors 4) numeric derivatives and integrals 5) complex numbers 6) engineering notation 7) constants and conversions All built-in, no need to program. A big plus is cost is nominal. One drawback to this model is it slides all over. Add rubber feet to case bottom as a fix. (see pic)
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.
