Casio FX-991CW Scientific Calculator – 540 Functions, Dual Power, 16+10+2 Digit Display

The Casio FX-991CW is the new upgraded version of the FX-991EX scientific calculator, offering 540 functions to support a wide range of mathematical and scientific tasks. With its dual power source — solar power with battery backup — and auto shut-off feature, it is a practical choice for students and professionals across Jordan.

Key Features

• 540 functions covering a comprehensive range of calculations.
• Dual power source: solar power with battery backup for uninterrupted use.
• 16 + 10 + 2-digit LCD display for clear, detailed output.
• Non-stick keys for comfortable, reliable input.
• Prime factorization and recurring decimals support.
• Regression analysis and statistical functions built in.
• Hyperbolic functions and algebraic logic included.
• 24 levels of parenthesis and 9 variable memories for complex expressions.
• Auto shut-off to conserve power.

Technical Specifications

• Display: LCD, 16 + 10 + 2 digits
• Functions: 540
• Variable Memories: 9
• Parenthesis Levels: 24
• Power Source: Dual — Solar with battery backup
• Special Functions: Prime factorization, recurring decimals, regression analysis, statistical functions, hyperbolic, algebraic logic, metric
• Keys: Non-stick
• Auto Shut-Off: Yes