Faymas Scientific Calculator 417 Finction - FSC991ES PLUS-BL

Summary

The Faymas FSC991ES PLUS-BL Scientific Calculator computes 417 functions using dual-power solar and LR44 battery cells. Under its 31x96 dots Natural Textbook Display, mathematical expressions look identical to printed paper. This tool solves complex numbers, statistics, and trigonometry for engineering students.

Key Features

1. 417 Integrated Functions: Computes matrix, vector, integration, and base-n calculations. Solves high-level engineering math.
2. Dual Power Source: Combines a solar panel with one LR44 button battery. Works during sudden load shedding.
3. Natural Textbook Display: Shows fractions and square roots in standard 31x96 dot resolution. Reduces manual entry errors.
4. 2-Year Brand Warranty: Covers manufacturing defects for twenty-four months from purchase date. Provides long-term hardware reliability.

Frequently Asked Questions

Is Faymas calculator allowed in BUET exam?

Most BUET exams permit non-programmable scientific calculators like this model. The device lacks wireless connectivity or text storage.

How to change battery in Faymas 991ES Plus?

Remove the rear casing screws to access the LR44 battery slot. Replace the cell while keeping the solar panel face down.