"calculator"的定义和意义

What is a "calculator"?

A calculator is a small device used to perform mathematical calculations. It can add, subtract, multiply, and divide, along with more complex functions like square roots, percentages, and scientific calculations, depending on the type. Basic calculators have simple number buttons and function keys, while scientific calculators include additional features for advanced math or engineering tasks. Calculators are commonly used in schools, offices, and homes to solve problems quickly and accurately, offering a faster alternative to manual calculations. They can be either handheld or built into computers and smartphones.