Casio fx-991EX
advanced scientific calculator with 552 functions and natural textbook display
Casio fx-991EX is a scientific calculator made by Casio. It has 552 functions and 12 modes.[1]
 | |
| Manufacturer | Casio |
|---|---|
| Dimensions | 11.1 millimetres (0.44 in) thick |
| Mass | 90 grams (3.2 oz) |
| CPU | 25 MHz single-core |
| Memory | 64K |
| Storage | 32K (1.7K available for spreadsheet) |
| Battery | 1 x LR44, solar, DC 1.5 V |
| Display | 2.6 inches (6.6 cm) (2.4 inches (6.1 cm) viewable) 192x62 px, 86 ppi |
Modes change
1: Calculate change
This mode allows you for basic calculations.
2: Complex change
This mode allows you for complex calculations.
3: Base-N change
This mode allows you for calculations in base 2, 8, 10 or 16.
4: Matrix change
This mode allows you for matrices up to 4x4.
5: Vector change
This mode allows you for vector calculations.
6: Statistics change
This mode allows you for statistics.
| Type | Max rows |
|---|---|
| x | 160 |
| x, Freq | 80 |
| x, y | 80 |
| x, y, Freq | 53 |
7: Distribution change
This mode allows you for distribution calculations.
8: Spreadsheet change
This mode allows you for spreadsheets (up to 45 rows, 5 columns).
9: Table change
This mode allows you for listing calculations up to 45 (f(x)) or 30 (f(x) and g(x)) rows.
A: Equation/Func change
This mode allows you for simulatmous equations and polynomials.
B: Inequality change
This mode allows you for inequality polynomials.
C: Ratio change
This mode allows you for rational calculations.
References change
- ↑ "CASIO WEW Worldwide Education Website". CASIO WEW Worldwide Education Website (in Japanese). Retrieved 2021-05-17.