RFUGUG Compact Office & Student Calculator, Portable 8-Digit Desktop Computer, Perfect for Quick Calculations - Sleek Design, Easy to Carry, Ideal for Business, School and Home Office Use Feature: Product Name: Calculator Material: Plastic Product color:Purple Product size:8.2x5.2x2cm/3.22x2.04x0.47in Packing size:8.2x5.2x2cm/3.22x2.04x0.47in Net weight：26g/0.06lb Gross weight: 26g/0.06lb Description: [Large 8 digit Display] The huge large screen that clearly displays big numbers makes it easy to read from afar, and it’s aesthetically pleasing. Max support 8 digits display. [Quiet]The mute button design will not disturb others when pressing the button. The round button is exquisite and fashionable, and the button can be press tens of thousands of times.The back is equipped with a Non-slip mat, which is not easy to slide on the desktop [Sensitive and Big Buttons] Once press, the buttons quickly registration and display the corresponding number on the screen. The electronic desk calculator adopts a scientific large button design, which conforms to human habits and is comfortable . [Multi-function] Add, subtract, multiply, divide, backspace, total, percentage and more. [Best for Home & Office] This basic calculator suitable for business, office, home, school or anybody that needs make any sort of calculation from time to time. Package Included: 1× lculator Functionality: Calculators vary widely in terms of capabilities. Basic models perform simple arithmetic operations such as addition, subtraction, multiplication, and division. Scientific calculators include functions for trigonometry, logarithms, exponents, and factorial calculations, while graphing calculators can plot graphs and solve equations visually. Programmable calculators allow users to create custom functions and store formulas, making them ideal for complex mathematical tasks. Display Quality: A clear and readable display is crucial for accuracy and ease of use. Modern calculators often feature large LCD screens with backlit displays for visibility in low-light conditions. High-resolution screens on advanced models can show multiple lines of text and detailed graphs, enhancing usability for students and professionals in fields like engineering and finance. Battery Life and Power Options: Reliable power is essential for calculators, especially for those used in critical situations. Many models use replaceable batteries, while others have rechargeable batteries or solar panels for environmental friendliness and long-term cost savings. Some high-end calculators incorporate dual power options, allowing operation with either battery or solar power. Ease of Use and Ergonomics: User-friendly design includes intuitive key placement and layout, with clearly labeled buttons for quick access to functions. Ergonomic shapes and textured grips can make calculators more comfortable to hold and operate, especially during extended use. Tactile feedback from the keys helps in confirming input without having to constantly look at the calculator. Durability and Build Quality: Robust construction ensures that calculators can withstand daily use and occasional drops. High-quality materials and protective casing help protect against damage from dust, moisture, and impacts. For classroom and professional settings, durability is a key consideration, as calculators are often used under varying conditions and require long-lasting performance.