Key facts
- Brand
- Casio
- Model
- fx-991EX
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2023-10-16
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Casio fx-991EX ClassWiz Quick Start Guide
The Casio fx-991EX "ClassWiz" is a scientific calculator featuring a high-resolution display capable of showing between 2 to 6 times as many characters as other models while running on solar power. Users can turn the unit on using the key and power it down by pressing {Ac} (OFF). The device utilizes Natural Textbook Display™ notation for fast and easy input, similar to textbook formats.
Read onlineCasio fx-991EX specifications
| Display Resolution Comparison | 2-6 times as many characters as other scientific calculators |
|---|---|
| Power Source | Solar power |
| Matrix Size Limit | up to 4x4 |
| Vector Dimensions | 2- and 3-dimensional |
| Spreadsheet Capacity | up to 5 columns and 45 rows |
All Casio fx-991EX documents by type
The shortest path to a working setup, usually only a few pages.
Questions answered in these manuals
How do you turn the fx-991EX on and off?
Use the key to turn the calculator on, and press {Ac} (OFF) to power the unit down.
What notation does the fx-991EX use for input?
It uses Natural Textbook Display™ notation, which is similar to that found in textbooks.
How do I turn the calculator on and off?
Use the power key to turn the calculator on, and press {Ac} (OFF) to power it down.
How can I switch between exact and decimal result formats?
Press the toggle key to switch calculation results between Standard (exact) and Decimal forms.