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The OSALO OS-991EX calculates 552 math functions through a 192 x 63 pixel display. Dual power circuits draw energy from solar cells or internal batteries. With 151 more functions than the OS-991MS, this version replaces the old 2-line screen with high-resolution icons for faster navigation.
Key Features
- 552 Math Functions: Calculus, complex numbers, and spreadsheet operations. Solves advanced engineering problems without external tables.
- Natural Textbook Display: 192 x 63 pixel resolution showing fractions and roots. Expressions appear exactly as they look in textbooks.
- Dual Power Input: Integrated solar panel and LR44 battery. Operations continue during indoor load shedding or low light.
- Matrix and Vector Support: 4x4 matrix and 3-dimensional vector calculations. Handles linear algebra requirements for higher secondary exams.
- 12 Months Warranty: One-year hardware protection against internal circuit failure. Covers the device through a full academic cycle.
Frequently Asked Questions
Is OSALO OS-991EX allowed in HSC exams?
Bangladesh education boards generally permit non-programmable scientific calculators for public examinations. This model lacks text-storage capabilities, meeting standard exam hall requirements.
How many functions does OSALO 991EX have?
This device contains 552 pre-programmed mathematical functions. It handles everything from basic arithmetic to 4x4 matrix equations and spreadsheet data.
