Arvojoukkoa
Arvojoukkoa is a Finnish mathematical term describing the range, or image, of a function. When a function f maps a domain X to a codomain Y, the arvojoukko of f consists of all values y in Y that f attains for some x in X.
Formally, for a function f: X → Y, arvojoukko(f) = { f(x) | x ∈ X }. In many contexts it is
Examples help illustrate the concept. If f: R → R is defined by f(x) = x^2, the arvojoukko
Properties of arvojoukko reflect the mapping’s reach. The arvojoukko equals the codomain Y exactly when f is
In Finnish mathematics education, arvojoukko is a standard term for teaching the concept of the range of