Casio FX-991 ZA Plus II Scientific Calculator

The Casio FX‑991ZA Plus II Scientific Calculator is a powerful and reliable calculator designed for students, engineers, and professionals who require advanced mathematical capabilities. With over 400 built-in functions, this scientific calculator supports a wide range of calculations including algebra, trigonometry, statistics, calculus, and complex numbers.

Its Natural Textbook Display allows equations and results to appear exactly as they do in textbooks, making calculations easier to read and understand. The calculator features a large high-resolution display and an intuitive key layout, ensuring efficient operation during exams, classes, and professional work.

The dual power system (solar and battery) ensures dependable performance in any environment, while the durable design makes it ideal for daily academic and office use.

Key Features

• Over 400 built-in functions

• Natural Textbook Display for easy equation viewing

• Supports fractions, matrices, vectors, and statistics

• Dual power: solar with battery backup

• Fast and accurate processing

• Ideal for high school, university, engineering, and technical calculations

Perfect For

• Students and educators

• Engineering and technical calculations

• Mathematics and science studies

• Exams and classroom use