The Casio fx-991CW is the most advanced non-programmable scientific calculator in the ClassWiz range. It is the flagship model designed for advanced secondary education, A-levels, and university-level courses in engineering, mathematics, and physics.

• Dual Power System: Equipped with Solar Plus with Battery back-up, ensuring constant reliability during critical exams and long study sessions.

• 540+ Advanced Functions: Features a comprehensive suite of tools including spreadsheet capabilities, 4×4 matrix calculations, vector analysis, and complex number calculations.

• High-Definition Grayscale Display: The 4-level grayscale screen provides superior contrast, making icons and mathematical expressions incredibly easy to read.

• Intuitive Navigation: The redesigned “CW” interface features a simplified key layout and an icon-based menu system for a smooth, user-friendly experience.

• QR Code Integration: Generate QR codes on the screen to visualize your data and graphs on a smartphone or tablet via the Casio ClassWiz service.

• Advanced Solver: Quickly solve quadratic, cubic, and simultaneous equations, as well as integration and differentiation problems.

This calculator is the ultimate tool for students needing a powerful, exam-legal device that offers the precision and speed required for complex technical problem-solving.