Casio FX-991CW Advanced Scientific Calculator

The Casio fx-991 CW is the upgraded version of Casio’s advanced scientific calculator, building on the fx-991 EX with more features and an enhanced display. It offers over 540 functions and an intuitive layout designed to simplify navigation, making it suitable for advanced mathematics work and exam use. The calculator features a high-definition display that presents mathematical expressions as they appear in textbooks, improving readability of roots, fractions, and symbolic results. It is approved for use in UK exams where calculators are permitted and is recommended for Key Stages 3 to 5, including Advanced GCSE, A/AS level, and Highers. The fx-991 CW is dual-powered with solar cells and battery backup, and includes a clip-on hard case for protection. Its Natural Textbook Display, Natural-V.P.A.M, and new key layout aim to provide quick access to a wide range of functions while maintaining portability.

Key features

• 540+ functions
• Natural Textbook Display
• High-resolution LC display
• Natural-V.P.A.M textbook style
• Dual powered: solar + battery backup
• QR code for graphic representations

Technical specifications

• Base-N (hex/dec/bin/oct) support
• Functions: equation, matrix, vector, inequality
• Statistics, random decimal and integer generator
• Table of values and probability
• Hours/degrees/minutes/seconds
• Included clip-on hard case