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function

function

343 4.9
A rule in math or computing that gives one output for each input
  • noun
  • /ˈfʌŋkʃən/
  • Specialized
translation icon : función
  • In mathematics, a function connects an input value to an output value through a specific rule.
  • lung function
  • normal function
  • motor function

So U is a function of X.

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Examples

  • The flow rate over a weir is a function of the head on the weir.

    Academic text (2011)
  • You think, why not improve the search function, Apple?

  • So this gives a function F of T.

  • So U is a function of X.

  • I will only be able to perform my basic functions.

  • So the temperature is a function of X&T.

  • There was no significant difference as a function of treatment condition on any pretest measure.

    Academic text (2015)
  • However, if accurate, monitoring with lung function tests could reduce medication usage and save costs.

    Academic text (2015)
  • It still has motor function, probably still has powers of deliberation.

  • Can the process and outcomes of a comprehensive function-based intervention also be socially valid?

    Academic text (2013)

Synonyms

procedure
vsfunction
  • Specialized
108 4.1

A part of a computer program that does a specific task

is a named program part or a mathematical relation rather than just instruction sets
map
vsfunction
  • Specialized
89 8.6

A rule that links each item in one set to one in another

is the broader concept that also covers program actions and processes
subroutine
vsfunction
  • Specialized
35 6.5

A set of program steps that does one job and can be used again

can mean a named program part or a mathematical relation not only reusable code
routine
vsfunction
  • Specialized
16 3.8

A set of computer instructions that does one task

covers both this programming use and broader mathematical relations or processes
mapping
vsfunction
  • Specialized
11 4.2

A rule that links each thing in one group to a thing in another group

extends beyond that idea to include named program parts and processes
functor
vsfunction
  • Specialized
1 9.9

A rule that turns objects or functions in one system into objects in another

is a more general idea, covering simple relations and named program parts
subprogram
vsfunction
  • Specialized
1 7.2

A set of steps in a program that does a single task

also applies to mathematical relations and broader input output processes
mathematical function
vsfunction
  • Specialized
4.3

A rule that gives each item in one group exactly one item in another group

includes both these mathematical relations and named program parts

Compounds

bodily function
  • Specialized
8 2.4

A natural process in the body, like breathing or digestion

cognitive function
  • Specialized
6 4.1

The ability to think, remember, and understand

wave function
  • Specialized
5 8.0

A math rule in quantum physics that shows how likely a particle is to be in a certain place

4 3.5

A formal event where people meet for a special purpose

function call
  • Specialized
1 4.4

An instruction in a program that runs a small piece of code and then returns

control function
  • Specialized
1 6.1

A feature in a computer program that manages how data are recorded, processed and sent

exponential function
  • Specialized
1 6.8

A rule that gives a number by raising a fixed number to a variable's power

linear function
  • Specialized
1 4.7

A rule that makes a straight line on a graph

8.5

A graph that shows how a device's output changes when input voltage changes

circular function
  • Specialized
7.9

A function like sine or cosine that gives the ratio of two sides in a right triangle for an angle

complex function
  • Specialized
8.5

A function that has two or more variables and shows complicated behavior

derived function
  • Specialized
7.5

A function that shows the slope of another function at each point

domain of a function
  • Specialized
7.0

All input values that give a valid output for a function

function word
  • Specialized
1.0

A word that shows the grammar of a sentence, like and or the

6.6

Certain parts of the brain or body do specific jobs

mathematical function
  • Specialized
4.3

A rule that gives each item in one group exactly one item in another group

metric function
  • Specialized
9.0

A function that gives the distance between two points in a space

inverse function
  • Specialized
7.4

A function that reverses another function so you get the original number back

range of a function
  • Specialized
7.4

All the possible values a rule gives when you put numbers in

onto function
  • Specialized
9.6

A rule that gives every possible output from some input

7.5

A feature that automatically removes files or messages after a set time

sentential function
  • Specialized
9.9

An expression with gaps that becomes a sentence when you fill them with words

surjective function
  • Specialized
9.9

A rule that gives every output value at least one input value

threshold function
  • Specialized
8.5

A function that gives 1 when an input is above a fixed number and 0 when not

6.8

A rule that gives numbers for angles using two side lengths in a right triangle, like sine or cosine

7.4

A rule that gives exactly one output for each input

wave function
  • Specialized
6.5

A math rule that shows how a wave moves and its size

How Complex

recursive definition
  • Specialized
8.2
function
  • Specialized
343 4.9

Surface Forms

function singular
functions plural

Etymology

Function comes from the Latin word functio, which comes from the old verb fungi meaning 'to perform' or 'do'. So a mathematical function is like a little worker that 'does' a job: it takes an input and gives an output.