Scientific calculator CASIO FX-220+ compact 78×155×20 mm, basic scientific functions

CASIO FX-220+ compact scientific calculator, sized 78×155×20 mm, offers a focused set of essential scientific and mathematical functions in a portable housing. Designed for everyday academic and practical use, it handles trigonometric functions, logarithms, powers, roots and basic statistical calculations. The compact form factor and straightforward operation make the calculator suitable for classroom work, homework and quick field calculations where a reliable numeric tool is required.

Advantages

The calculator combines a small footprint with a clear keypad layout and dedicated function keys for common scientific operations. Its compact dimensions allow easy storage in a bag or pocket while maintaining tactile keys for accurate input. The model provides a balance of necessary calculation modes without extraneous features, supporting quick setup and minimal learning curve for students and professionals.

Suitable for

• School mathematics classes (algebra, geometry, trigonometry)
• University courses requiring basic scientific calculations
• Homework and exam preparation where permitted
• Everyday engineering or laboratory checks that need quick numeric results
• Fieldwork and on-site measurements requiring portable computation

Key specifications

• Dimensions: 78 × 155 × 20 mm
• Function set: trigonometric functions, logarithms, powers and roots
• Statistics: basic statistical calculations (mean, standard deviation, etc.)
• Display: single-line numeric display optimized for concise expressions
• Input: tactile physical keypad with dedicated scientific keys
• Power source: battery operation for portable use

How to use

Turn the calculator on using the power key and enter numbers via the keypad. Select function keys for trigonometric calculations (sin, cos, tan) and switch angle modes as needed. Use logarithm and power keys for exponential expressions and the root key for square-root operations. Access statistical modes to input datasets and compute mean or standard deviation. Clear entries with the clear key and follow on-display prompts for chained operations. The straightforward layout supports step-by-step calculation without menu navigation.

Usage recommendations

Store the calculator in a protective sleeve or compartment to avoid key wear during transport. Replace the battery when display dimming or inconsistent results occur. Verify permitted calculator functions before exams and disable any regional exam-specific features if necessary.