The Casio FX-991ZA Plus II is the pinnacle of scientific calculators, designed to support complex mathematics, engineering, physical sciences, and more. With its enhanced functionality, this calculator simplifies advanced calculations, from algebraic equations to statistical analysis, making it an indispensable tool for students and professionals alike.

Natural Textbook Display for Ease of Use

Featuring Casio's renowned Natural Textbook Display, the FX-991ZA Plus II presents mathematical expressions, symbols, and fractions clearly and naturally, mirroring the layout seen in textbooks. This innovative display facilitates better understanding and learning, allowing users to follow along with their textbooks effortlessly.

Comprehensive Functionality for Diverse Needs

Equipped with an extensive range of functions, including calculus, matrix and vector calculations, and complex number operations, this calculator is tailored to meet the demands of higher education and professional environments. Its ability to perform integral and differential calculus, alongside advanced statistical operations, makes it a versatile companion for solving a broad spectrum of scientific and mathematical problems.

Solar Powered with Battery Backup for Uninterrupted Use

The FX-991ZA Plus II utilizes dual power sources, combining solar power with a battery backup to ensure reliable performance in any setting. Whether you're studying late into the night or working under bright classroom lights, this calculator remains powered and ready for use.

Durable Design for Everyday Use

Casio calculators are built to last, and the FX-991ZA Plus II is no exception. Its sturdy construction is designed to withstand the rigors of daily use, from busy classrooms to professional workspaces, ensuring longevity and consistent performance.

User-Friendly Features for Enhanced Productivity

With features like multi-line display, easy menu navigation, and quick function access, the FX-991ZA Plus II is as user-friendly as it is powerful. It also includes a QR code function for easy sharing and viewing of calculations on smartphones, adding a modern twist to traditional scientific computation.

Tailored for the South African Curriculum

Specifically designed to align with the South African educational standards, the FX-991ZA Plus II supports students throughout their academic journey, from high school to university. Its capabilities are fine-tuned to the local curriculum, ensuring that learners have the right tools to excel in their studies.

Quick Specs: Everything You Need to Know

Display: Natural Textbook 2-line Display | Dot Matrix for clear visibility of expressions and calculations.

Functions: 452 Advanced Scientific Functions including Integration, Differentiation, Matrix, Vector, and Complex Number Calculations.

Memory: Features 9 Variables, Answer Memory, Previous Answer Memory, Memory Protection, and Reset Function for comprehensive data management.

Power Supply: Dual powered with Solar & Battery for reliability | Auto Power Off feature to conserve energy.

Calculation Capabilities: Includes Basic and Advanced Calculations, Fraction/Decimal Conversion, Angle Unit Conversion, Sigma Calculations, and Statistical Functions like Q1, Med, Q3.

Special Modes: Inequality, Ratio, GCD/LCM, Equation, Base-n, Distribution Calculation Modes, and Dual Table Mode for simultaneous function computation.

Design: Equipped with Plastic Keys for durability and ease of use | Designed to support the South African Curriculum, making it ideal for secondary education onwards.

For detailed specifications, kindly check the Product Specification tab.

Additional Information:

Colour: Silver

Brand: Casio

Warranty: 12 months limited warranty

Included in the box: 

1x Casio FX-991ZA Plus II Scientific Calculator

Basic Information

Display Settings

Calculation Functions