Experience next-level speed and functionality with the Casio FX-991EX Classwiz, a premium non-programmable scientific calculator designed for high school, college, and engineering students. Equipped with 552 advanced functions, it features a high-resolution natural textbook display, faster processor, and QR code generation for graphing via smartphones. Ideal for solving complex calculations like matrices, vectors, statistics, and differential equations, the FX-991EX combines performance with ease of use, making it one of the most powerful scientific calculators approved for exams. Key Features: 552 functions including calculus, engineering symbols, matrix & vector operations High-resolution LCD with Natural Textbook Display Fast processing and intuitive menu interface QR code generation for graphical visualization Dual power: Solar + Battery Sleek and durable black design Non-programmable – allowed in most board and university exams