OA-991EX Scientific Calculator 552 Functions Support Fraction and Decimal Point Conversion 2-Line Written Display Solar Battery - Ideal for Middle High School Students and Teachers Black

描述

📐 Elevate your equations — never miss a calculation beat!

The OA-991EX Scientific Calculator packs 552 functions including advanced algebra, statistics, and matrix operations into a sleek, ultra-light design. Featuring a high-resolution multi-line display and a quad-core processor, it delivers fast, clear calculations. Dual solar and battery power ensure long-lasting use, while a durable sliding cover protects it during intense study sessions. Perfect for middle and high school students and teachers aiming for precision and efficiency.