Function

Function

The concept of function has its origin in the Latin term function . The word can be used in different fields and with different meanings.

For example, a function is the representation of an artistic work . The theatrical function is the representation that is performed live in a theater , while the function of the exhibition of a film in movie theaters is also called.

Moreover, one mathematical function is the correspondence or relationship f of the elements of a set A with the elements of a set B . A function satisfies the condition of existence (all the elements of A are related to the elements of B) and with the condition of uniqueness (each element of A is related to a single element of B).

In computer science , more precisely in programming languages , a function is a type of subalgorithm that describes a sequence of commands. These orders fulfill a specific task of a larger application.

For semiotics , a function is the set of elements and the relationships between them that are necessary to define a structure .

Finally, a technical function is the passage, through an appropriate device, of a given set of initial states of a system , to the desired set of final states. For example: a "water source" system , with an initial state of "impure water" , can use the technical function "water purification" to make the final state "pure water source" .