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class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_no.wikipedia.org&uselang=nb" class=""><span>Doner</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Opprett_konto&returnto=Sigma" title="Du oppfordres til å opprette en konto og logge inn, men det er ikke obligatorisk" class=""><span>Opprett konto</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Logg_inn&returnto=Sigma" title="Du oppfordres til å logge inn, men det er ikke obligatorisk [o]" 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mw-ui-icon-wikimedia-logIn"></span> <span>Logg inn</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Nettsted"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <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 class="mw-page-title-main">Sigma</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikkel på et annet språk. Tilgjengelig på 85 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-85" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">85 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Sigma" title="Sigma – norsk nynorsk" lang="nn" hreflang="nn" data-title="Sigma" data-language-autonym="Norsk nynorsk" data-language-local-name="norsk nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Sigma_(bogstav)" title="Sigma (bogstav) – dansk" lang="da" hreflang="da" data-title="Sigma (bogstav)" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Sigma" title="Sigma – svensk" lang="sv" hreflang="sv" data-title="Sigma" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Sigma" title="Sigma – islandsk" lang="is" hreflang="is" data-title="Sigma" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Sigma_(letter)" title="Sigma (letter) – afrikaans" lang="af" hreflang="af" data-title="Sigma (letter)" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/%CE%A3" title="Σ – sveitsertysk" lang="gsw" hreflang="gsw" data-title="Σ" data-language-autonym="Alemannisch" data-language-local-name="sveitsertysk" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ab mw-list-item"><a href="https://ab.wikipedia.org/wiki/%CE%A3" title="Σ – abkhasisk" lang="ab" hreflang="ab" data-title="Σ" data-language-autonym="Аԥсшәа" data-language-local-name="abkhasisk" class="interlanguage-link-target"><span>Аԥсшәа</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D9%8A%D8%BA%D9%85%D8%A7" title="سيغما – arabisk" lang="ar" hreflang="ar" data-title="سيغما" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arc mw-list-item"><a href="https://arc.wikipedia.org/wiki/%CE%A3" title="Σ – arameisk" lang="arc" hreflang="arc" data-title="Σ" data-language-autonym="ܐܪܡܝܐ" data-language-local-name="arameisk" class="interlanguage-link-target"><span>ܐܪܡܝܐ</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Siqma" title="Siqma – aserbajdsjansk" lang="az" hreflang="az" data-title="Siqma" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A6%BF%E0%A6%97%E0%A6%AE%E0%A6%BE" title="সিগমা – bengali" lang="bn" hreflang="bn" data-title="সিগমা" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/%CE%A3" title="Σ – minnan" lang="nan" hreflang="nan" data-title="Σ" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A1%D1%96%D0%B3%D0%BC%D0%B0_(%D0%BB%D1%96%D1%82%D0%B0%D1%80%D0%B0)" title="Сігма (літара) – belarusisk" lang="be" hreflang="be" data-title="Сігма (літара)" data-language-autonym="Беларуская" data-language-local-name="belarusisk" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A1%D1%8B%D0%B3%D0%BC%D0%B0" title="Сыгма – belarusisk (klassisk ortografi)" lang="be-tarask" hreflang="be-tarask" data-title="Сыгма" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="belarusisk (klassisk ortografi)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D0%B8%D0%B3%D0%BC%D0%B0" title="Сигма – bulgarsk" lang="bg" hreflang="bg" data-title="Сигма" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Sigma" title="Sigma – bairisk" lang="bar" hreflang="bar" data-title="Sigma" data-language-autonym="Boarisch" data-language-local-name="bairisk" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%A6%E0%BD%B2%E0%BD%82%E0%BC%8B%E0%BD%98%E0%BC%8D" title="སིག་མ། – tibetansk" lang="bo" hreflang="bo" data-title="སིག་མ།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetansk" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Sigma_(lizherenn)" title="Sigma (lizherenn) – bretonsk" lang="br" hreflang="br" data-title="Sigma (lizherenn)" data-language-autonym="Brezhoneg" data-language-local-name="bretonsk" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Sigma" title="Sigma – katalansk" lang="ca" hreflang="ca" data-title="Sigma" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Sigma" title="Sigma – tsjekkisk" lang="cs" hreflang="cs" data-title="Sigma" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/%CE%A3" title="Σ – shona" lang="sn" hreflang="sn" data-title="Σ" data-language-autonym="ChiShona" data-language-local-name="shona" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Sigma" title="Sigma – walisisk" lang="cy" hreflang="cy" data-title="Sigma" data-language-autonym="Cymraeg" data-language-local-name="walisisk" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-se mw-list-item"><a href="https://se.wikipedia.org/wiki/%CE%A3" title="Σ – nordsamisk" lang="se" hreflang="se" data-title="Σ" data-language-autonym="Davvisámegiella" data-language-local-name="nordsamisk" class="interlanguage-link-target"><span>Davvisámegiella</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Sigma" title="Sigma – tysk" lang="de" hreflang="de" data-title="Sigma" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Sigma" title="Sigma – estisk" lang="et" hreflang="et" data-title="Sigma" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A3%CE%AF%CE%B3%CE%BC%CE%B1" title="Σίγμα – gresk" lang="el" hreflang="el" data-title="Σίγμα" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Sigma" title="Sigma – engelsk" lang="en" hreflang="en" data-title="Sigma" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/%CE%A3" title="Σ – spansk" lang="es" hreflang="es" data-title="Σ" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Sigmo" title="Sigmo – esperanto" lang="eo" hreflang="eo" data-title="Sigmo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Sigma" title="Sigma – baskisk" lang="eu" hreflang="eu" data-title="Sigma" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%DB%8C%DA%AF%D9%85%D8%A7" title="سیگما – persisk" lang="fa" hreflang="fa" data-title="سیگما" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Sigma" title="Sigma – fransk" lang="fr" hreflang="fr" data-title="Sigma" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Sigme" title="Sigme – irsk" lang="ga" hreflang="ga" data-title="Sigme" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Sigma" title="Sigma – skotsk-gælisk" lang="gd" hreflang="gd" data-title="Sigma" data-language-autonym="Gàidhlig" data-language-local-name="skotsk-gælisk" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Sigma" title="Sigma – galisisk" lang="gl" hreflang="gl" data-title="Sigma" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-hak mw-list-item"><a href="https://hak.wikipedia.org/wiki/%CE%A3" title="Σ – hakka" lang="hak" hreflang="hak" data-title="Σ" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="hakka" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%CE%A3" title="Σ – koreansk" lang="ko" hreflang="ko" data-title="Σ" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8D%D5%AB%D5%A3%D5%B4%D5%A1_(%D5%BF%D5%A1%D5%BC)" title="Սիգմա (տառ) – armensk" lang="hy" hreflang="hy" data-title="Սիգմա (տառ)" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Sigma" title="Sigma – kroatisk" lang="hr" hreflang="hr" data-title="Sigma" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Sigma" title="Sigma – indonesisk" lang="id" hreflang="id" data-title="Sigma" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Sigma" title="Sigma – italiensk" lang="it" hreflang="it" data-title="Sigma" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A1%D7%99%D7%92%D7%9E%D7%90" title="סיגמא – hebraisk" lang="he" hreflang="he" data-title="סיגמא" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A1%E1%83%98%E1%83%92%E1%83%9B%E1%83%90_(%E1%83%90%E1%83%A1%E1%83%9D)" title="სიგმა (ასო) – georgisk" lang="ka" hreflang="ka" data-title="სიგმა (ასო)" data-language-autonym="ქართული" data-language-local-name="georgisk" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Sigma" title="Sigma – swahili" lang="sw" hreflang="sw" data-title="Sigma" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-kv mw-list-item"><a href="https://kv.wikipedia.org/wiki/%D0%A1%D0%B8%D0%B3%D0%BC%D0%B0" title="Сигма – komi" lang="kv" hreflang="kv" data-title="Сигма" data-language-autonym="Коми" data-language-local-name="komi" class="interlanguage-link-target"><span>Коми</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/%CE%A3" title="Σ – haitisk" lang="ht" hreflang="ht" data-title="Σ" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haitisk" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Sigma" title="Sigma – kurdisk" lang="ku" hreflang="ku" data-title="Sigma" data-language-autonym="Kurdî" data-language-local-name="kurdisk" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Sigma" title="Sigma – latin" lang="la" hreflang="la" data-title="Sigma" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Sigma" title="Sigma – latvisk" lang="lv" hreflang="lv" data-title="Sigma" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Sigma" title="Sigma – luxemburgsk" lang="lb" hreflang="lb" data-title="Sigma" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburgsk" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lez mw-list-item"><a href="https://lez.wikipedia.org/wiki/%D0%A1%D0%B8%D0%B3%D0%BC%D0%B0_(%D0%B3%D1%8C%D0%B0%D1%80%D1%84)" title="Сигма (гьарф) – lesgisk" lang="lez" hreflang="lez" data-title="Сигма (гьарф)" data-language-autonym="Лезги" data-language-local-name="lesgisk" class="interlanguage-link-target"><span>Лезги</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Sigma_(raid%C4%97)" title="Sigma (raidė) – litauisk" lang="lt" hreflang="lt" data-title="Sigma (raidė)" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Szigma" title="Szigma – ungarsk" lang="hu" hreflang="hu" data-title="Szigma" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B8%E0%B4%BF%E0%B4%97%E0%B5%8D%E0%B4%AE" title="സിഗ്മ – malayalam" lang="ml" hreflang="ml" data-title="സിഗ്മ" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B8%E0%A4%BF%E0%A4%97%E0%A5%8D%E0%A4%AE%E0%A4%BE" title="सिग्मा – marathi" lang="mr" hreflang="mr" data-title="सिग्मा" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Sigma" title="Sigma – malayisk" lang="ms" hreflang="ms" data-title="Sigma" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/Sigma" title="Sigma – mindong" lang="cdo" hreflang="cdo" data-title="Sigma" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-nah mw-list-item"><a href="https://nah.wikipedia.org/wiki/%CE%A3" title="Σ – nahuatl" lang="nah" hreflang="nah" data-title="Σ" data-language-autonym="Nāhuatl" data-language-local-name="nahuatl" class="interlanguage-link-target"><span>Nāhuatl</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Sigma_(letter)" title="Sigma (letter) – nederlandsk" lang="nl" hreflang="nl" data-title="Sigma (letter)" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%CE%A3" title="Σ – japansk" lang="ja" hreflang="ja" data-title="Σ" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Sigma" title="Sigma – oksitansk" lang="oc" hreflang="oc" data-title="Sigma" data-language-autonym="Occitan" data-language-local-name="oksitansk" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B8%E0%A8%BF%E0%A8%97%E0%A8%AE%E0%A8%BE" title="ਸਿਗਮਾ – panjabi" lang="pa" hreflang="pa" data-title="ਸਿਗਮਾ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Sigma" title="Sigma – nedertysk" lang="nds" hreflang="nds" data-title="Sigma" data-language-autonym="Plattdüütsch" data-language-local-name="nedertysk" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Sigma" title="Sigma – polsk" lang="pl" hreflang="pl" data-title="Sigma" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/%CE%A3" title="Σ – portugisisk" lang="pt" hreflang="pt" data-title="Σ" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Sigma_(liter%C4%83)" title="Sigma (literă) – rumensk" lang="ro" hreflang="ro" data-title="Sigma (literă)" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D0%B8%D0%B3%D0%BC%D0%B0_(%D0%B1%D1%83%D0%BA%D0%B2%D0%B0)" title="Сигма (буква) – russisk" lang="ru" hreflang="ru" data-title="Сигма (буква)" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Sigma" title="Sigma – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="Sigma" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Sigma" title="Sigma – slovakisk" lang="sk" hreflang="sk" data-title="Sigma" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Sigma" title="Sigma – slovensk" lang="sl" hreflang="sl" data-title="Sigma" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%B3%DB%8C%DA%AF%D9%85%D8%A7" title="سیگما – sentralkurdisk" lang="ckb" hreflang="ckb" data-title="سیگما" data-language-autonym="کوردی" data-language-local-name="sentralkurdisk" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D0%B8%D0%B3%D0%BC%D0%B0_(%D1%81%D0%BB%D0%BE%D0%B2%D0%BE)" title="Сигма (слово) – serbisk" lang="sr" hreflang="sr" data-title="Сигма (слово)" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Sigma" title="Sigma – serbokroatisk" lang="sh" hreflang="sh" data-title="Sigma" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Sigma" title="Sigma – finsk" lang="fi" hreflang="fi" data-title="Sigma" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%8B%E0%B8%B4%E0%B8%81%E0%B8%A1%E0%B8%B2" title="ซิกมา – thai" lang="th" hreflang="th" data-title="ซิกมา" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Sigma" title="Sigma – tyrkisk" lang="tr" hreflang="tr" data-title="Sigma" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A1%D0%B8%D0%B3%D0%BC%D0%B0" title="Сигма – ukrainsk" lang="uk" hreflang="uk" data-title="Сигма" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Sigma" title="Sigma – vepsisk" lang="vep" hreflang="vep" data-title="Sigma" data-language-autonym="Vepsän kel’" data-language-local-name="vepsisk" class="interlanguage-link-target"><span>Vepsän kel’</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Sigma" title="Sigma – vietnamesisk" lang="vi" hreflang="vi" data-title="Sigma" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Sigma" title="Sigma – waray-waray" lang="war" hreflang="war" data-title="Sigma" data-language-autonym="Winaray" data-language-local-name="waray-waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%CE%A3" title="Σ – wu" lang="wuu" hreflang="wuu" data-title="Σ" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%CE%A3" title="Σ – kantonesisk" lang="yue" hreflang="yue" data-title="Σ" data-language-autonym="粵語" data-language-local-name="kantonesisk" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/%CE%A3" title="Σ – dimli" lang="diq" hreflang="diq" data-title="Σ" data-language-autonym="Zazaki" data-language-local-name="dimli" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%CE%A3" title="Σ – kinesisk" lang="zh" hreflang="zh" data-title="Σ" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-kge mw-list-item"><a href="https://kge.wikipedia.org/wiki/%CE%A3_(Sigma)" title="Σ (Sigma) – Komering" lang="kge" hreflang="kge" data-title="Σ (Sigma)" data-language-autonym="Kumoring" data-language-local-name="Komering" class="interlanguage-link-target"><span>Kumoring</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14413#sitelinks-wikipedia" title="Rediger lenker til artikkelen på andre språk" class="wbc-editpage">Rediger lenker</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Sigma" title="Vis innholdssiden [c]" accesskey="c"><span>Artikkel</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Diskusjon:Sigma&action=edit&redlink=1" rel="discussion" class="new" title="Diskusjon om innholdssiden (ikke skrevet ennå) [t]" accesskey="t"><span>Diskusjon</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Bytt språkvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">norsk bokmål</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visninger"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Sigma"><span>Les</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Sigma&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Sigma&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Sigma&action=history" title="Tidligere sideversjoner av denne siden [h]" accesskey="h"><span>Vis historikk</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verktøy" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verktøy</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Verktøy</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">skjul</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Flere alternativer" > <div class="vector-menu-heading"> Handlinger </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Sigma"><span>Les</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Sigma&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Sigma&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Sigma&action=history"><span>Vis historikk</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generelt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Spesial:Lenker_hit/Sigma" title="Liste over alle wikisider som lenker hit [j]" accesskey="j"><span>Lenker hit</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Spesial:Relaterte_endringer/Sigma" rel="nofollow" title="Siste endringer i sider som blir lenket fra denne siden [k]" accesskey="k"><span>Relaterte endringer</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=no" title="Last opp filer [u]" accesskey="u"><span>Last opp fil</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Spesial:Spesialsider" title="Liste over alle spesialsider [q]" accesskey="q"><span>Spesialsider</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Sigma&oldid=24792295" title="Permanent lenke til denne versjonen av siden"><span>Permanent lenke</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Sigma&action=info" title="Mer informasjon om denne siden"><span>Sideinformasjon</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Spesial:Siteringshjelp&page=Sigma&id=24792295&wpFormIdentifier=titleform" title="Informasjon om hvordan denne siden kan siteres"><span>Siter denne siden</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Spesial:UrlShortener&url=https%3A%2F%2Fno.wikipedia.org%2Fwiki%2FSigma"><span>Hent forkortet URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Spesial:QrCode&url=https%3A%2F%2Fno.wikipedia.org%2Fwiki%2FSigma"><span>Last ned QR-kode</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Skriv ut / eksporter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Spesial:DownloadAsPdf&page=Sigma&action=show-download-screen"><span>Last ned som PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Sigma&printable=yes" title="Utskriftsvennlig versjon av denne siden [p]" accesskey="p"><span>Utskriftsvennlig versjon</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> På andre prosjekter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/%CE%A3" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14413" title="Lenke til koblet dataregisterelement [g]" accesskey="g"><span>Wikidata-element</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">skjul</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Fra Wikipedia, den frie encyklopedi</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nb" dir="ltr"><dl><dd><i>Denne siden er om den greske bokstaven. Se også <a href="/wiki/Sigma_Corporation" title="Sigma Corporation">Sigma Corporation</a>.</i></dd></dl> <style data-mw-deduplicate="TemplateStyles:r24553676">.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}html.client-js body.skin-minerva .mw-parser-output .mbox-text-span{margin-left:23px!important}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}</style><table class="plainlinks metadata ambox ambox-content ambox-Unsourced" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/Fil:Question_book-new.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span"><b>Kildeløs</b>: Denne artikkelen mangler <a href="/wiki/Wikipedia:Bruk_av_kilder" title="Wikipedia:Bruk av kilder">kildehenvisninger</a>, og opplysningene i den kan dermed være vanskelige å <a href="/wiki/Wikipedia:Verifiserbarhet" title="Wikipedia:Verifiserbarhet">verifisere</a>. Kildeløst materiale kan bli <a href="/wiki/Wikipedia:Verifiserbarhet#Bevisbyrden" title="Wikipedia:Verifiserbarhet">fjernet</a>.</div></td></tr></tbody></table> <table class="infobox" width="160px"> <tbody><tr> <td colspan="2"><span typeof="mw:File"><a href="/wiki/Fil:Sigma_uc_lc.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Sigma_uc_lc.svg/160px-Sigma_uc_lc.svg.png" decoding="async" width="160" height="107" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Sigma_uc_lc.svg/240px-Sigma_uc_lc.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Sigma_uc_lc.svg/320px-Sigma_uc_lc.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> </td></tr> <tr> <th bgcolor="#ccccff" colspan="2" style="text-align:center;"><a href="/wiki/Det_greske_alfabetet" title="Det greske alfabetet">Det greske alfabetet</a> </th></tr> <tr style="font-size:90%;"> <td width="50%"><a href="/wiki/Alfa" title="Alfa">Α α Alfa</a> </td> <td width="50%"><a href="/wiki/Ny_(bokstav)" title="Ny (bokstav)">Ν ν Ny</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Beta" title="Beta">Β β Beta</a> </td> <td><a href="/wiki/Ksi" title="Ksi">Ξ ξ Ksi</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Gamma" title="Gamma">Γ γ Gamma</a> </td> <td><a href="/wiki/Omikron" title="Omikron">Ο ο Omikron</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Delta_(bokstav)" title="Delta (bokstav)">Δ δ Delta</a> </td> <td><a href="/wiki/Pi_(bokstav)" title="Pi (bokstav)">Π π Pi</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Epsilon" title="Epsilon">Ε ε Epsilon</a> </td> <td><a href="/wiki/Rho" title="Rho">Ρ ρ Rho</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Zeta" title="Zeta">Ζ ζ Zeta</a> </td> <td><a class="mw-selflink selflink">Σ σ ς Sigma</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Eta_(bokstav)" title="Eta (bokstav)">Η η Eta</a> </td> <td><a href="/wiki/Tau_(bokstav)" title="Tau (bokstav)">Τ τ Tau</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Theta" title="Theta">Θ θ Theta</a> </td> <td><a href="/wiki/Ypsilon" title="Ypsilon">Υ υ Ypsilon</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Iota" title="Iota">Ι ι Iota</a> </td> <td><a href="/wiki/Phi" title="Phi">Φ φ Phi</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Kappa_(bokstav)" title="Kappa (bokstav)">Κ κ Kappa</a> </td> <td><a href="/wiki/Khi" title="Khi">Χ χ Khi</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/Lambda" title="Lambda">Λ λ Lambda</a> </td> <td><a href="/wiki/Psi" title="Psi">Ψ ψ Psi</a> </td></tr> <tr style="font-size:90%;"> <td><a href="/wiki/My" title="My">Μ μ My</a> </td> <td><a href="/wiki/Omega" title="Omega">Ω ω Omega</a> </td></tr> <tr style="font-size:90%;"> <th bgcolor="#ccccff" colspan="2" style="text-align:center;">Utgåtte bokstaver </th></tr> <tr style="font-size:90%;"> <td><span class="nowrap"><span typeof="mw:File"><a href="/wiki/Fil:Digamma_uc_lc.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Digamma_uc_lc.svg/25px-Digamma_uc_lc.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/22/Digamma_uc_lc.svg/38px-Digamma_uc_lc.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/22/Digamma_uc_lc.svg/50px-Digamma_uc_lc.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> <a href="/wiki/Digamma" title="Digamma">Digamma</a></span> </td> <td><span typeof="mw:File"><a href="/wiki/Fil:Qoppa_uc_lc.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Qoppa_uc_lc.svg/25px-Qoppa_uc_lc.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Qoppa_uc_lc.svg/38px-Qoppa_uc_lc.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Qoppa_uc_lc.svg/50px-Qoppa_uc_lc.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> <a href="/wiki/Qoppa" title="Qoppa">Qoppa</a> </td></tr> <tr style="font-size:90%;"> <td><span typeof="mw:File"><a href="/wiki/Fil:San_uc_lc.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/San_uc_lc.svg/25px-San_uc_lc.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/San_uc_lc.svg/38px-San_uc_lc.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/df/San_uc_lc.svg/50px-San_uc_lc.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> <a href="/wiki/San_(bokstav)" title="San (bokstav)">San</a> </td> <td><span typeof="mw:File"><a href="/wiki/Fil:Sampi_uc_lc_T-shaped.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Sampi_uc_lc_T-shaped.svg/25px-Sampi_uc_lc_T-shaped.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Sampi_uc_lc_T-shaped.svg/38px-Sampi_uc_lc_T-shaped.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ad/Sampi_uc_lc_T-shaped.svg/50px-Sampi_uc_lc_T-shaped.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> <a href="/wiki/Sampi" title="Sampi">Sampi</a> </td></tr> <tr style="font-size:90%;"> <th bgcolor="#ccccff" colspan="2" style="text-align:center;">Yngre ligaturer </th></tr> <tr style="font-size:90%;"> <td><span typeof="mw:File"><a href="/wiki/Fil:Stigma_uc_lc.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Stigma_uc_lc.svg/25px-Stigma_uc_lc.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Stigma_uc_lc.svg/38px-Stigma_uc_lc.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Stigma_uc_lc.svg/50px-Stigma_uc_lc.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> <a href="/wiki/Stigma_(bokstav)" title="Stigma (bokstav)">Stigma</a> </td> <td><span typeof="mw:File"><a href="/wiki/Fil:Ou_ligature.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Ou_ligature.svg/25px-Ou_ligature.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Ou_ligature.svg/38px-Ou_ligature.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Ou_ligature.svg/50px-Ou_ligature.svg.png 2x" data-file-width="60" data-file-height="41" /></a></span> <a href="/wiki/Ou_(bokstav)" title="Ou (bokstav)">Ou</a> </td></tr> <tr style="font-size:90%;"> <td><span typeof="mw:File"><a href="/wiki/Fil:Greek_ligature_kai.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Greek_ligature_kai.svg/13px-Greek_ligature_kai.svg.png" decoding="async" width="13" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Greek_ligature_kai.svg/20px-Greek_ligature_kai.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Greek_ligature_kai.svg/26px-Greek_ligature_kai.svg.png 2x" data-file-width="90" data-file-height="172" /></a></span> <a href="/wiki/Kai_(symbol)" title="Kai (symbol)">Kai</a> </td> <td> </td></tr> <tr style="font-size:90%;"> <td> </td></tr> <tr style="font-size:90%;"> <th bgcolor="#ccccff" colspan="2" style="text-align:center;">Annet </th></tr> <tr style="font-size:90%;"> <td><span typeof="mw:File"><a href="/wiki/Fil:Heta_uc_lc.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Heta_uc_lc.svg/25px-Heta_uc_lc.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Heta_uc_lc.svg/38px-Heta_uc_lc.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/93/Heta_uc_lc.svg/50px-Heta_uc_lc.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> <a href="/wiki/Heta" title="Heta">Heta</a> </td> <td>(halv Eta) </td></tr> <tr style="font-size:90%;"> <td><span typeof="mw:File"><a href="/wiki/Fil:Sho_uc_lc.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sho_uc_lc.svg/25px-Sho_uc_lc.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sho_uc_lc.svg/38px-Sho_uc_lc.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Sho_uc_lc.svg/50px-Sho_uc_lc.svg.png 2x" data-file-width="3000" data-file-height="2000" /></a></span> <a href="/wiki/Sjo" title="Sjo">Sjo</a> </td> <td>(baktrisk ekstrabokstav) </td></tr></tbody></table> <p><i><b>Sigma'</b></i> (stor bokstav Σ, liten bokstav σ, alternativt ς når den står sist i et ord) er den attende bokstaven i det <a href="/wiki/Gresk_alfabet" class="mw-redirect" title="Gresk alfabet">greske alfabetet</a>. Sigma er av stor betydning innen matematikk, vitenskap, og ingeniørfag, hvor den brukes til å representere summasjon (Σ). </p><p>I gresk grammatikk og skriftspråk blir den endrede formen av sigma (ς) benyttet når bokstaven befinner seg ved ordslutt, med mindre ordet er skrevet med store bokstaver. </p><p>I middelalderen ble den såkalte "måneformede sigma", som ligner en <i>C</i>, ofte benyttet (stor: Ϲ, liten: ϲ). Denne varianten kan til tider observeres i inskripsjoner, eksempelvis i gresk-ortodokse kirker, hvor hele Guds skapelse kan bli henvist til med ordet KOCMOC (kosmos), som på nåtidig gresk ville vært skrevet som ΚΟΣΜΟΣ. </p> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r23230704">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist 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