A Function
Function
function rule
It is a relationship from one set to another, which is not a function.
It assigns exactly one output value for each input value.
function
A Function
The relationship is called a surjection or a surjective function.
A function is any relationship between inputs and outputs in which each input leads to exactly one output. It is possible for a function to have more than one input that yields the same output.
function
A function is a rule which assigns exactly one output f(x) to every input x.
It's a type of function
Function
function rule
It is a relationship from one set to another, which is not a function.
It assigns exactly one output value for each input value.
That's a proper function, a conformal mapping, etc.