Boost your academic and professional performance with the Casio FX-991ES Plus 2nd Edition – a sleek, black, non-programmable scientific calculator designed for students and professionals. Equipped with 417 functions, it supports natural textbook display, matrix and vector calculations, complex number operations, and more. Perfect for SSC, HSC, university exams, and engineering studies, this model is approved for most educational boards and competitive exams. With a dual power system (solar + battery) and an intuitive interface, it’s your reliable companion for fast, accurate calculations. Key Features: 417 functions including fractions, integration, differentiation, matrices, and vectors Natural Textbook Display for easy readability Dual power: Solar & Battery High-resolution display for enhanced viewing Durable and lightweight black design Ideal for school, college, university, and professional use Non-programmable – allowed in most exam halls