Calculadora científica Casio ClassWiz FX-87DE CW 12 dígitos preta

The Casio ClassWiz FX-87DE CW pocket scientific calculator offers a compact, battery-powered solution for everyday mathematical and scientific calculations. Featuring a clear 12-digit display and a user-focused interface, this model delivers essential functions for arithmetic, algebra, trigonometry and statistics in a slim black housing suitable for school and professional use.

Advantages

The calculator combines a high-contrast 12-digit LCD with optimized menu navigation to speed up data entry and result reading. It supports a broad set of built-in functions including standard scientific, statistical and fractional calculations while maintaining low power consumption through battery operation. The pocket-sized design and durable keys provide portability and reliable tactile feedback during frequent use.

Suitable for

• Secondary school mathematics and science classes
• University-level engineering and technical coursework (where permitted)
• Home study, homework and exam practice
• Everyday calculations for professionals who need a portable scientific calculator

Key specifications

• Display: 12-digit LCD for numeric results and expressions
• Power source: battery-powered operation for portability
• Function set: scientific functions including trigonometry, logarithms, powers, roots and fractions
• Statistical functions: basic statistical calculations and data analysis features
• Form factor: pocket-sized, slim profile with a protective casing
• Input: tactile keypad with dedicated scientific function keys

How to use

Turn on the calculator using the power key and enter expressions directly via the keypad. Use the mode and function keys to select calculation types such as statistical, fractional or trigonometric operations. The 12-digit display shows results and most intermediate values; consult the built-in menu prompts for accessing secondary functions. Replace the battery when display dimming or power issues occur to ensure consistent operation.

Recommendations

Store the calculator in a protective case when not in use to avoid mechanical damage. For examination use, verify that this model is permitted by the exam regulations. Clean the keypad and display gently with a dry, soft cloth and replace batteries according to the manufacturer’s guidance to maintain reliable performance.