Micron Document
<!DOCTYPE html>
<html class="client-nojs vector-feature-night-mode-disabled vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-sticky-header-enabled" lang="en" dir="ltr"><head>
<meta charset="UTF-8">
<title>Function</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="canonical" href="https://en.wikipedia.org/wiki/Function"> <link href="./mw/skins.vector.icons.css" rel="stylesheet" type="text/css">
<link href="./mw/skins.vector.search.codex.styles.css" rel="stylesheet" type="text/css">
<link href="./mw/skins.vector.styles.css" rel="stylesheet" type="text/css">
<link href="./mw/user.styles.css" rel="stylesheet" type="text/css">
<meta name="ResourceLoaderDynamicStyles" content="">
<link rel="stylesheet" type="text/css" href="./mw/site.styles.css">
<link rel="stylesheet" type="text/css" href="./mw/noscript.css">
<link rel="stylesheet" type="text/css" href="./footer.css">
<link rel="stylesheet" type="text/css" href="./vector-2022.css">
</head>
<body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Function rootpage-Function skin-vector-2022 action-view">
<div class="mw-page-container">
<div class="mw-page-container-inner">
<div class="mw-content-container">
<main id="content" class="mw-body">
<header class="mw-body-header vector-page-titlebar">
<h1 id="firstHeading" class="firstHeading mw-first-heading">
<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Function</span></span>
</h1>
</header>
<a id="top"></a>
<div id="bodyContent" class="vector-body ve-init-mw-desktopArticleTarget-targetContainer" aria-labelledby="firstHeading" data-mw-ve-target-container="">
<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="en" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r1290876196">
/* start https://en.wikipedia.org/ */


.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .infobox .side-box{font-size:100%}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}


/* end https://en.wikipedia.org/ */
</style><style data-mw-deduplicate="TemplateStyles:r1237033735">
/* start https://en.wikipedia.org/ */


@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}


/* end https://en.wikipedia.org/ */
</style><div class="side-box side-box-right sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">
/* start https://en.wikipedia.org/ */


.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}


/* end https://en.wikipedia.org/ */
</style>
<div class="side-box-flex">
<div class="side-box-image"><span class="noviewer" typeof="mw:File"></span></div>
<div class="side-box-text plainlist">Look up <i><b><a href="https://en.wiktionary.org/wiki/function" class="extiw external" title="wiktionary:function">function</a></b></i>&nbsp;or <i><b><a href="https://en.wiktionary.org/wiki/functionality" class="extiw external" title="wiktionary:functionality">functionality</a></b></i> in Wiktionary, the free dictionary.</div></div>
</div>
<style data-mw-deduplicate="TemplateStyles:r1305433154">
/* start https://en.wikipedia.org/ */


.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}


/* end https://en.wikipedia.org/ */
</style>
<p><b>Function</b> or <b>functionality</b> may refer to:
</p>
<style data-mw-deduplicate="TemplateStyles:r1044870489">
/* start https://en.wikipedia.org/ */


@media all and (max-width:720px){body.skin-minerva .mw-parser-output .tocright{display:none}.mw-parser-output .tocright{width:100%!important}}@media all and (min-width:720px){.mw-parser-output .tocright{float:right;clear:right;width:auto;margin:0 0 0.5em 1em}.mw-parser-output .tocright-clear-left{clear:left}.mw-parser-output .tocright-clear-both{clear:both}.mw-parser-output .tocright-clear-none{clear:none}}


/* end https://en.wikipedia.org/ */
</style><div class="tocright"><meta property="mw:PageProp/toc"></div>
<div class="mw-heading mw-heading2"><h2 id="Computing">Computing</h2></div>
<ul><li><a href="Function_key" title="Function key">Function key</a>, a type of key on computer keyboards</li>
<li><a href="Function_model" title="Function model">Function model</a>, a structured representation of processes in a system</li>
<li><a href="Function_object" title="Function object">Function object</a> or functor or functionoid, a concept of object-oriented programming</li>
<li><a href="Function_(computer_programming)" title="Function (computer programming)">Function (computer programming)</a>, a callable sequence of instructions</li>
<li><a href="Boolean_function" title="Boolean function">Boolean function</a>, used in hardware design</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Music">Music</h2></div>
<ul><li><a href="Function_(music)" title="Function (music)">Function (music)</a>, a relationship of a chord to a tonal centre</li>
<li><a href="Function_(musician)" title="Function (musician)">Function (musician)</a> (born 1973), David Charles Sumner, American techno DJ and producer</li>
<li><a href="Function_(song)" title="Function (song)">"Function" (song)</a>, a 2012 song by American rapper E-40 featuring YG, Iamsu! &amp; Problem</li>
<li>"Function", song by Dana Kletter from <i><a href="Boneyard_Beach_(album)" title="Boneyard Beach (album)">Boneyard Beach</a></i> 1995</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Other_uses">Other uses</h2></div>
<ul><li><a href="Function_(biology)" title="Function (biology)">Function (biology)</a>, the effect of an activity or process</li>
<li><a href="Function_(engineering)" title="Function (engineering)">Function (engineering)</a>, a specific action that a system can perform</li>
<li><a href="Function_(language)" class="mw-redirect" title="Function (language)">Function (language)</a>, a way of achieving an aim using language</li>
<li><a href="Function_(mathematics)" title="Function (mathematics)">Function (mathematics)</a>, a relation that associates an input to a single output</li>
<li><a href="Function_(sociology)" class="mw-redirect" title="Function (sociology)">Function (sociology)</a>, an activity's role in society</li>
<li><a href="Functionality_(chemistry)" title="Functionality (chemistry)">Functionality (chemistry)</a>, the presence of functional groups in a molecule</li>
<li><a href="Party" title="Party">Party</a> or function, a social event</li>
<li><a href="Function_Drinks" title="Function Drinks">Function Drinks</a>, an American beverage company</li></ul>
<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="Function_field_(disambiguation)" class="mw-redirect mw-disambig" title="Function field (disambiguation)">Function field (disambiguation)</a></li>
<li><a href="Function_hall" class="mw-redirect" title="Function hall">Function hall</a></li>
<li><a href="Functional_(disambiguation)" class="mw-redirect mw-disambig" title="Functional (disambiguation)">Functional (disambiguation)</a></li>
<li><a href="Functional_group_(disambiguation)" class="mw-disambig" title="Functional group (disambiguation)">Functional group (disambiguation)</a></li>
<li><a href="Functionalism_(disambiguation)" class="mw-redirect mw-disambig" title="Functionalism (disambiguation)">Functionalism (disambiguation)</a></li>
<li><a href="Functor_(disambiguation)" class="mw-disambig" title="Functor (disambiguation)">Functor (disambiguation)</a></li></ul>

<style data-mw-deduplicate="TemplateStyles:r1097304697">
/* start https://en.wikipedia.org/ */


.mw-parser-output .dmbox{display:flex;align-items:center;clear:both;margin:0.9em 1em;border-top:1px solid #ccc;border-bottom:1px solid #ccc;padding:0.25em 0.35em;font-style:italic}.mw-parser-output .dmbox>*{flex-shrink:0;margin:0 0.25em}.mw-parser-output .dmbox-body{flex-grow:1;flex-shrink:1;padding:0.1em 0}.mw-parser-output .dmbox-invalid-type{text-align:center}


/* end https://en.wikipedia.org/ */
</style>
</div><!--htdig_noindex--><div><div class="zim-footer">
This article is issued from <a class="external text" title="Last edited on 2025-08-07" href="https://en.wikipedia.org/wiki/?title=Function&amp;oldid=1304631172">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.
</div>
</div><!--/htdig_noindex--></div>
</div>
</main>
</div>
</div>
</div>

</body></html>