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