A calculator is a tool used for performing mathematical calculations
Basic Calculator: This type has a 10-digit keypad and performs basic arithmetic operations like addition, subtraction, multiplication, and division. You can find online versions like The Online Calculator.
Scientific Calculator: A more advanced calculator that includes functions for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, and statistics. You can use the free online scientific calculator by Desmos.
General Purpose Calculators: Websites like Calculator.net offer a collection of calculators covering math, finance, fitness, and more.
Mobile and Desktop Apps: There are various calculator apps available for smartphones and computers, catering to different needs.