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📊 Elevate your calculations — because precision is the new power move.
The Casio fx-991ES Plus 2 is a professional scientific calculator featuring 417 functions and a natural textbook display that mirrors textbook formulas for easy comprehension. Powered by both solar energy and a battery, it ensures reliable use during exams and study sessions. Compact and lightweight, it supports advanced calculations including regression, matrices, and calculus, making it a top choice for secondary school, university students, and professional exam takers.
| ASIN | B082LGR56M |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #38,309 in Office Products ( See Top 100 in Office Products ) #42 in Scientific Calculators |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,016) |
| Date First Available | December 13, 2019 |
| Item Weight | 3.35 ounces |
| Item model number | fx-991ES PLUS-2 |
| Language | English |
| 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)
C**R
Perfect
Top-notch scientific calculator. Natural Textbook Display, 417 functions, compact & durable. Perfect for math, physics, or engineering students
J**A
perfecta para pruebascde bachillerato de secundaria en costa rica
C**A
Útil para colegio
J**Y
Scientific Calculator
I love it i git what I want easy to use specifically for FE Preparation
K**N
Solar Wow!
My kid says it works great! The price wasn't too bad either. My child was able to find and use all the functions a bit easier than other scientific calculators before. The box did come in a bit beat up but all good so far.
D**R
Good
Good for school
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.
Trustpilot
3 weeks ago
3 days ago