

📊 Elevate your problem-solving game with precision and style!
The Casio Fx-991ES Plus 2nd Edition is a professional-grade scientific calculator featuring 417 functions, a Natural Textbook Display for easy equation reading, and dual solar/battery power for reliable use. Lightweight and durable, it’s designed for students and professionals demanding accuracy and efficiency in technical calculations.








| ASIN | B0846D5CBP |
| Brand | Casio |
| Calculator Type | Engineering/Scientific |
| Color | Black |
| Compatible Devices | [Wide] |
| Country of Origin | Japan |
| Customer Reviews | 4.6 4.6 out of 5 stars (29,459) |
| Display Type | LCD |
| Enclosure Material | Metal or Durable Plastic |
| Global Trade Identification Number | 04549526608773 |
| Item Dimensions L x W | 16.2L x 7.7W centimeters |
| Item Type Name | CASIO FX-991ES PLUS 2nd Edition | Technical and Scientific Calculator |
| Item Weight | 95 Grams |
| Manufacturer | Casio |
| Mfr Part Number | C79 |
| Model Name | fx-991ES PLUS 2nd edition |
| Model Number | FX-991ES PLUS 2ND EDITION |
| Number of Batteries | 1 LR44 batteries required. (included) |
| Power Source | Solar powered and battery powered |
| Screen Size | 4 Inches |
| Warranty Description | 1 year manufacturer warranty |
M**N
⭐⭐⭐⭐⭐ Outstanding Calculator for Technical and Scientific Use!
The Casio Fx-991ES Plus-2nd Edition is an exceptional tool for anyone in need of a reliable and versatile scientific calculator. As a student of engineering, I’ve found this model to be an absolute lifesaver for solving complex problems efficiently. Comprehensive Functionality: It covers everything from basic arithmetic to advanced functions like calculus, matrix operations, and complex numbers. The 417 functions available ensure that it meets the demands of both students and professionals. Natural Textbook Display: The Natural Display makes it incredibly easy to input and review equations as they appear in textbooks. This feature is a huge plus for clarity and error-checking. Durability and Design: The build quality is robust, and the design is sleek and compact. It’s lightweight, making it easy to carry around, yet feels sturdy enough to withstand daily use. User-Friendly Interface: Despite its extensive features, the calculator is intuitive to use. The buttons are responsive, and the layout is logical, making even complex calculations straightforward. Solar and Battery Powered: The dual power source ensures it works seamlessly in different environments, whether you’re under bright classroom lights or in dimly lit settings. Affordable Pricing: Considering its extensive capabilities, the calculator offers fantastic value for money. It’s a worthwhile investment for anyone serious about technical or scientific work. Verdict: The Casio Fx-991ES Plus-2nd Edition has exceeded my expectations. Whether you're a student tackling exams or a professional needing quick, accurate calculations, this calculator is the perfect companion. Highly recommended!
O**S
Good quality
Good quality
M**D
Casio Fx
The product is good value
A**D
Good store
Same as described 👍👍
M**D
Recommended
Original product and working fine.
K**Y
this little wonder has made math feel like a walk in the park!
It's like having a math wizard in your pocket, ready to assist you at any moment. The buttons are perfectly arranged and labeled, making it a breeze to navigate through functions and operations. No more fumbling around or getting lost in an ocean of confusing symbols - this calculator keeps it simple and straightforward. It's like having a superhero cape draped over your shoulders, boosting your confidence and turning you into a mathematics virtuoso. Durability-wise, this calculator is a beast. Made with sturdy materials, it can endure accidental drops, backpack jostling, and even the occasional pencil poke without breaking a sweat. It's a trusty companion that will see you through math classes, exams, and countless problem-solving adventures.
S**M
Very good!
A very good product
D**O
GOAT
Carried me in math, physics, and chem.
F**R
Ottima calcolatrice scientifica in piena tradizione Casio. Ideale per liceo scientifico, ha molteplici funzioni che ka rendono fruibile direi anche in ambito universitario non eccessivamente spinto (ovvero se non si necessita di calcolo matriciale oltre rango 4). Consigliata ed approvata senza alcun dubbio!
G**.
Good price and great product
D**Z
La he pillado hace poco y todavía no le he sacado ni la mitad del partido, pero la primera impresión es muy buena. Lo que más me importaba era asegurar que servía para los exámenes de la uni y con esta vas sobre seguro, porque hace de todo pero entra en lo que permiten los profesores. Me falta trastear un poco más con ella para ver todas las funciones que tiene, pero de momento me parece una compra obligatoria si estás en una carrera técnica. Se nota robusta y, viendo lo que hace, te quita de muchos líos en mitad de un examen. Muy contento con el cambio.
S**D
Excelente calculadora.
L**H
J’ai acheté cette calculatrice Casio pour mes cours et je suis vraiment satisfaite. Elle est facile à utiliser, les touches sont réactives et l’écran est clair même après plusieurs heures d’utilisation. Elle gère parfaitement les fonctions scientifiques dont j’ai besoin pour les devoirs et les examens, et je trouve qu’elle est bien conçue pour les étudiants. Le manuel est aussi utile pour comprendre certaines fonctions avancées. Le rapport qualité-prix est excellent je la recommande vivement à tous ceux qui ont besoin d’une calculatrice performante et durable.
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