| Product Specifications | |
| Specifications | |
| Type | Scientific Calculator |
| Display | Liquid Crystal Display Dot Matrix Display |
| Digit | 10 & 2 |
| Number of Functions | 552 |
| Key | Plastic keys |
| Memory | Yes |
| Print Speed | No |
| TAX Calculation | No |
| Power Sources | Solar & Battery |
| Body Material | Plastic |
| Dimensions | 11.1 x 77 x 165.5mm |
| Weight | 0.09kg |
| Color | Black & White |
| Special Features | GCSE/AS/A Level: Suitable for Cambridge International Examinations GCSE, AS & A Level Natural textbook display: Display expression same as textbook Icon menu: Specify the operation you want to perform by selecting an icon or inputting a number Multi-replay: Quick and easy recall of previously executed formulas Metric conversion function Basic Mathematical Functions: Trigonometric, Exponential logarithmic, etc. Table Generation Intermediate Statistics: Paired-variable statistical calculation, Quartiles, List display Base-n calculation: Binary/Octal/Hexadecimal Scientific Constants Advanced Statistics: 7 kinds of advanced distribution calculation List based STAT-data editor High Resolution QR Code: Online Visualization Service Basic Statistics: Mean, SUM, Standard Deviation, and Regression Vector, Inequality, Differentiation, Spreadsheet, Non Graphing, Matrix, Equation, Integration, Complex number calculation |
| Warranty Information | |
| Warranty | 3 Year (No Warranty For Battery & Accessories) (Must be Claimed with Warranty Card & Box) |
The Casio FX-991EX Scientific Calculator stands as a pinnacle of mathematical utility for students, engineers, and professionals alike. Engineered with a robust set of 552 advanced functions, this device is designed to handle everything from basic arithmetic to complex calculus, matrix operations, and vector analysis. Its high-resolution dot matrix display ensures that mathematical expressions appear exactly as they would in a textbook, significantly reducing the cognitive load required to interpret complex data. Whether you are preparing for Cambridge International Examinations at the GCSE, AS, or A-Level, or tackling university-level engineering coursework, this calculator provides the reliability and precision necessary for academic and professional success. The build quality is exceptional, featuring durable plastic keys that offer tactile feedback for rapid, error-free input. Beyond its computational power, the Casio FX-991EX incorporates a unique QR code generation feature, allowing users to visualize graphs and data on their smartphones, bridging the gap between traditional calculation and modern digital visualization. With its dual power system—combining solar energy with battery backup—you can trust that your device will remain operational during critical exams and long study sessions. The intuitive icon-based menu system makes navigating through its vast array of features seamless, ensuring that you spend less time searching for functions and more time solving problems. Its lightweight, compact frame makes it an ideal companion for any backpack or briefcase, providing high-level computational competence in a portable, user-friendly package that has become the gold standard for non-programmable scientific calculators worldwide.
For students navigating the rigors of advanced mathematics, the Casio FX-991EX is more than just a tool; it is a strategic asset. The device is specifically optimized for Cambridge International Examinations, ensuring full compliance with curriculum requirements. By providing a consistent, high-definition display, it helps students maintain focus on the logic of the problem rather than the interface of the machine. Whether you are calculating standard deviations or solving complex inequalities, the precision offered by this model is unparalleled in the non-programmable category.
Engineers and science professionals require a calculator that can keep up with complex workflows. The Casio FX-991EX excels in this regard by offering specialized modes for vector calculations, matrix operations, and integration. The ability to perform these calculations on the go without needing a computer makes this calculator an essential item for field work and laboratory settings. The integration of scientific constants directly into the firmware ensures that you always have the most accurate data at your fingertips, reducing the need for external reference materials.
One of the most frustrating aspects of using a scientific calculator is the difficulty of editing long, complex formulas. The Casio FX-991EX solves this with its multi-replay function, which allows users to recall and edit previous expressions with ease. Combined with the list-based statistical editor, users can manage large sets of data points efficiently. This level of control is vital for researchers who need to perform iterative calculations or verify results across multiple variables without starting from scratch.
In an era where digital integration is key, the Casio FX-991EX stands out by offering a unique online visualization service. By simply pressing a button to generate a QR code, users can transfer their data to a smartphone or tablet. This feature is particularly useful for visualizing graphs or complex data sets that are difficult to interpret on a small monochrome screen. It represents a significant leap forward in how students interact with their hardware, making the learning process more dynamic and engaging.
Investing in the Casio FX-991EX is an investment in your academic and professional future. Its reputation as the most capable non-programmable scientific calculator is well-earned, backed by decades of Casio engineering excellence. By choosing this model, you are securing a device that is permitted in almost all major examinations, meaning you won't need to learn a new interface for different subjects. The durability of the plastic keys and the robust build quality ensure that this calculator will last throughout your entire educational journey, from high school through university. Furthermore, the sheer breadth of its functionality—from basic trigonometry to advanced spreadsheet analysis—means that you will not outgrow this tool as your coursework becomes more demanding. It offers the perfect balance of affordability, power, and ease of use. When you consider the time saved through its intuitive menu, the accuracy gained through its textbook display, and the versatility provided by its 552 functions, the Casio FX-991EX is clearly the smartest choice for anyone serious about mathematics and science.
The Casio FX-991EX is widely accepted for most international examinations, including Cambridge GCSE, AS, and A-Level, but you should always verify with your specific institution's exam policy.
Yes, this product includes a 3-year warranty, excluding the battery and accessories, provided you keep the original box and warranty card.
The calculator uses a dual-power system, but when the battery eventually needs replacement, you can easily access the compartment on the back of the device using a
