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The Citiplus SX-991MS Scientific Calculator processes 401 functions via a 2-line LCD. Solar cells and battery backup maintain power during extended calculation sessions. It remains a competitive option for engineering student tools in Bangladesh. This version upgrades the previous 240-function limit and introduces dedicated matrix and vector modes.
Key Features
- 401 Integrated Functions: Solves 401 complex equations, matrix calculations, and vector operations. Covers standard engineering course requirements.
- Dual Power Source: Solar cells supplement battery backup in lit environments. Reduces battery drain during daytime usage.
- High-Contrast 2-Line LCD: Displays the input formula and the final result simultaneously. Prevents input errors during complex calculations.
- 6-Month Warranty: Coverage for internal hardware failures for 180 days. Validates hardware reliability for one full semester.
- Hard Slide-on Case: 156x81x17 mm rigid plastic shell for screen protection. Blocks road dust during daily commutes.
Frequently Asked Questions
Is Citiplus SX-991MS allowed in board exams?
Most educational boards permit non-programmable units with these technical specs. Verify specific regulations as matrix and vector functions sometimes face restrictions.
How many functions does Citiplus SX-991MS have?
The device contains 401 integrated mathematical functions. It handles complex numbers, regression analysis, and equation solving.
