A calculator is an electronic device that performs arithmetic operations. It is designed to make complex calculations easier and faster. Calculators come in a variety of shapes and sizes, and they can range in complexity from simple four-function calculators to graphing calculators that can solve complex equations.
Engineers rely on calculators to perform a wide range of tasks, from simple arithmetic to complex calculations involving calculus and trigonometry. The best calculator for an engineer will depend on the specific needs of the individual, but some general features to look for include: