Casio Scientific Calculator 991 ES Plus (2nd Edition)

Casio 991 ES Plus Second Edition

is a reliable choice for students and professionals seeking precision and ease in complex calculations. With its natural textbook display and user-friendly functions, this calculator makes mathematical and scientific work easier to understand and execute, making it ideal for O/A level students and beyond.

Specifications

• Display: Natural textbook display for clear, easy-to-read results
• Functions: Over 417 functions, including fractions, statistics, trigonometry, and algebra
• Power: Dual power (solar and battery) for reliability in any environment
• Memory: Store and recall past calculations for efficiency
• Menu Navigation: Intuitive, icon-based interface

Benefits

• Perfect for O/A Level Studies: Meets curriculum needs with advanced math and science functions.
• Natural Textbook Display: Shows equations just like they appear in textbooks, aiding comprehension.
• Comprehensive Functions: Supports 417 functions covering algebra, calculus, and statistics.
• Energy-Efficient: Dual-powered with solar and battery to last longer during studies and exams.
• Easy-to-Use Interface: Icon-based menu for quick navigation and efficient calculation.