- Also called correspondence, map, mapping, transformation.a relation between two sets in which one element of the second set is assigned to each element of the first set, as the expression y = x2; operator.
- Also called multiple-value function.a relation between two sets in which two or more elements of the second set are assigned to each element of the first set, as y2 = x2, which assigns to every x the two values y = +x and y = −x.
- a set of ordered pairs in which none of the first elements of the pairs appears twice.
- a formula expressing a relation between the angles of a triangle and its sides, as sine or cosine.
- hyperbolic function.
- the grammatical role a linguistic form has or the position it occupies in a particular construction.
- the grammatical roles or the positions of a linguistic form or form class collectively.
verb (used without object)
Origin of function
Related Words for functionduty, affair, task, power, service, work, business, action, part, responsibility, purpose, behavior, activity, objective, role, operation, exercise, situation, gathering, meeting
Examples from the Web for function
Contemporary Examples of function
Openness might be a function of sexuality and gender, as well.Coming Out Kinky to Your Doctor, in Black and Blue
October 25, 2014
Entitled “Please Go Home,” the parody stars Daniel Franzese, best known as the “too gay to function” Damian from Mean Girls.Anime Hologram Pop Stars, Return of ‘Fresh Prince’ Carlton, and More Viral Videos
October 12, 2014
We were just about ready to function in a limited capacity.How to Save Silent Movies: Inside New Jersey’s Cinema Paradiso
October 2, 2014
Fast forward two centuries, and all these checks have long since ceased to function.Who Gets to Decide When We Go to War?
September 21, 2014
Between work and books and movies and family and boyfriends, I do not understand how they function.Inside the Mind of The Mindy Project’s Resident Weirdo, Ike Barinholtz
September 16, 2014
Historical Examples of function
Duncan described the function in a letter to Kellogg as the time of his young life.The Fortune Hunter
Louis Joseph Vance
But is there nothing to be said of the function of the imagination from the Greek side of the question?A Dish Of Orts
For some reason it's very important to them that it continues to function.Slaves of Mercury
Literature and art, at their noblest, function in that instinctive way.The American Mind
Doubtless, too, he would be tired after his journey and disinclined for such a function.People of Position
Stanley Portal Hyatt
Word Origin for function
1530s, "proper work or purpose," from Middle French fonction (16c.) and directly from Latin functionem (nominative functio) "performance, execution," noun of action from functus, past participle of fungi "perform, execute, discharge," from PIE root *bheug- (2) "to use, enjoy" (see brook (v.)). Use in mathematics probably begun by Leibnitz (1692).
1856, from function (n.). Related: Functioned; functioning.
In mathematics, a quantity whose value is determined by the value of some other quantity. For example, “The yield of this field is a function of the amount of fertilizer applied” means that a given amount of fertilizer will yield an amount of whatever crop is growing.