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Advanced Solar Scientific Calculator with 417 Functions
Experience professional-grade calculations with this upgraded 991ES scientific calculator, designed for students, engineers, and professionals who demand precision and versatility.
Key Features:
417 advanced functions for complex mathematical operations
Integrated LCD notepad for quick notes and calculations
Dual power: Solar and battery backup for uninterrupted use
Portable foldable design for easy storage and transport
6.5-inch display for clear visibility
Ideal for students, engineers, and scientific professionals
Perfect For:
Whether you're tackling advanced mathematics, engineering calculations, or scientific formulas, this calculator delivers reliable performance with its comprehensive function set and user-friendly interface.
