The Casio FX-991ES Plus Scientific Calculator Black is a powerful and versatile tool designed for students and professionals. With a natural textbook display and over 400 functions, it simplifies complex calculations in mathematics, engineering, and science.

Key Features:
• Natural textbook display for easy reading and input
• Over 400 functions including complex numbers, statistics, and matrix calculations
• Dual power: solar and battery for reliable performance
• High-resolution LCD for clear and sharp output
• Lightweight and durable design suitable for exams and everyday use