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The Casio fx-991CW ClassWiz Scientific Calculator processes over 540 functions using a dual-power solar and battery system. Available in a pink finish, the high-resolution LCD renders equations exactly as they appear in textbook formats. This updated model replaces the fx-991EX, adding a 4-gradation display for improved menu contrast and a simplified navigation interface.
Key Features
- 3-Year Warranty: Official coverage for 36 months of internal hardware reliability. Covers manufacturing defects throughout long-term academic use.
- QR Code Visualization: Generates on-screen codes for instant online graphing results. Displays complex data on external smartphone screens.
- Natural Textbook Display: Renders fractions and square roots in standard mathematical format. Reduces tranion errors between the paper and screen.
- 4-Gradation LCD: High-resolution screen utilizing grayscale shading for menu depth. Provides clear reading under bright classroom lighting.
- Dual Power System: Solar panel backed by a 2-year battery life. Maintains operation during load shedding or low-light exams.
- 540+ Functions: Pre-loaded operations including 47 scientific constants and 40 conversions. Handles standard HSC and university engineering mathematics.
Frequently Asked Questions
Is Casio fx-991CW allowed in HSC exam?
This non-programmable device complies with current Bangladesh examination board standards. It lacks wireless communication and internal text storage.
How to generate QR code in Casio fx-991CW?
Press the Shift and Optn keys to trigger the visualization on the screen. Scan the resulting code with a smartphone to view graphs online.
