3 ms·
The name “functional” is commonly used to refer to a function which takes a whole function (rather than, say, a number) as input. A simple example of a function
by throwaway37585 8y ago
The name “functional” is commonly used to refer to a function which takes a whole function (rather than, say, a number) as input. A simple example of a functional is the definite integral (area under the curve) over an interval.