In mathematics, both "domain" and "range" are used to describe sets of values in the context of functions.
The domain of a function is the set of input values for which the function is defined. In other words, it is the set of values that can be plugged into the function as the independent variable. The domain can be any set of numbers or other objects, but it is typically specified as a subset of the real numbers, such as all real numbers, all positive numbers, or all numbers between two given values.
The range of a function is the set of output values that the function can produce for all of the input values in the domain. In other words, it is the set of values that the function takes on as the dependent variable. The range can also be any set of numbers or other objects, but it is typically specified as a subset of the real numbers, based on the values that the function can produce.
In summary, the domain is the set of input values for a function, while the range is the set of output values that the function can produce for all of the input values in the domain.
