What is difference between relation and function

The notion of relation is more general.In the relation, y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y.The difference between a relation and a function is that a relationship can have many outputs for a single input, but a function has a single input for a single output.X is called domain, y is codomain, { y ∣ ( x, y) ∈ r } is range, r is graph of the function.On the other hand, for a function, each input has a single output.He can perform normalization on the tables to minimize data redundancy.

Relations are used, so those model concepts are formed.The user can design multiple tables or relations in a single database.There is basically no difference between mapping and function.The relation can be represented using the expression in the form f (x)=x^2.R = { (2, x), (9, y), (2, z)} ** it is not a function, as 2 is.Each quantity is said to be a function of the other.

By the definition, relations and functions seem to be quite similar but actually, there is a major difference between them.A relation is denoted by r.The difference between relations and functions are a bit confusing as they both are closely related to each other.In your class, there is a relation between you & your math marks.A function is denoted by f or f.In mathematics, a function can be defined as a rule that relates every element in one set, called the domain, to exactly one element in another set, called the range.

The main difference between a relation and a function is that a relation is a table in a relational database while a function is a set of statements to perform a specific task in a program.