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Injective function
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Every element of the function's codomain is the image of at most one element of its domain.
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Terms in this set (6)
Injective function
Every element of the function's codomain is the image of at most one element of its domain.
Surjective function
f: A -> B is surjective when all elements of B are mapped to by A.
The range is the same as the codomain.
Bijective function
A function which is both surjective and injective.
Inverse of a function
A function ƒ(y) = x, denoted by ƒ⁻¹(x) such that the domain of the function ƒ(x) becomes the range of the inverse function ƒ⁻¹(x), and the range of ƒ(x) becomes the domain of ƒ⁻¹(x) ; the function will only have an inverse function if it is bijective.
Composite function
A combination of two functions such that the output from the first function becomes the input for the second function
Function
A relationship from one set (called the domain) to another set (called the range) that assigns to each element of the domain exactly one element of the range.