The Casio fx-991EX is a scientific calculator with a high-resolution natural textbook display and a built-in spreadsheet mode. It handles numeric integration and differentiation, simultaneous and polynomial equations, 4×4 matrices, vectors, complex numbers, inequalities, statistics and prime factorization. It can also generate a QR code so a phone can show a graph of your data.
Key Features
- Spreadsheet mode on a high-resolution LCD
- Natural textbook display shows expressions as written
- QR code output for graphing on a smartphone
- Numeric integration and differentiation
- Simultaneous and polynomial equation solving
- 4×4 matrix, vector and complex number calculations
- Statistics, ratio, inequality and prime factorization
Specifications
| Brand / model | Casio fx-991EX |
|---|---|
| Type | Scientific calculator |
| Display | High-resolution LCD, natural textbook display |
| Key functions | Spreadsheet, calculus, equations, matrices (4×4), vectors, complex numbers, statistics |
| Extras | QR code generation |
| SKU | 02FX991EX |
What's Included
- Casio fx-991EX calculator (1)
Ideal For
High school and college students in algebra through calculus, statistics, chemistry, physics and engineering.
Frequently Asked Questions
How does the QR code feature work?
The calculator shows a QR code for the current problem; scanning it with a phone opens a graph of the data online.
Which courses is it recommended for?
General math, pre-algebra, algebra I and II, trigonometry, calculus, statistics, chemistry, physics and engineering.