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[[John Wallis]], matematikawan asal Inggris, diakui bahwa ia telah memperkenalkan simbol takhingga beserta pengertiannya dalam matematika pada tahun 1655, dalam karyanya ''De sectionibus conicis''.{{r|sectionibus|wallis|notations}} Wallis tidak menjelaskan simbol yang ia pilih. Simbol yang dipilih diduga berupa bentuk bilangan Romawi yang berbeda, <u>tetapi bilangan yang dipilih masih belum jelas</u>. Ada teori yang mengusul bahwa simbol tersebut berasal dari bilangan Romawi 100 juta, yang menyerupai simbol yang sama <u>enclosed within a rectangular frame</u>.{{r|beyond}} Adapula teori yang mengusul bahwa simbol tersebut berasal dari notasi CIↃ yang dipakai untuk mewakili 1000.{{r|unthinkable}} Instead of a Roman numeral, it may alternatively be derived from a variant {{nowrap|of {{char|ω}},}} the lower-case form of [[omega]], the last letter in the [[Greek alphabet]].{{r|unthinkable}}
 
Karena keterbatasan tipografi dalam beberapa kasus, simbol-simbol lain yang menyerupai simbol takhingga dipakai dengan arti yang sama.{{r|notations}} [[Leonhard Euler]] menggunakan simbol huruf S yang terbalik dan menyamping yang menyerupai simbol lemniskat.{{r|notations-incorrect}} andBahkan, evensimbol "O–O" has been useddipakai as a stand-in for the infinity symbol itself.{{r|notations}}
 
== Pemakaian ==
Baris 32:
Simbol takhingga juga dapat diartikan dalam [[titik di takhingga]], termasuk ketika hanya ada titik <u>yang sedang dipertimbangkan</u>.<sup>[terj, kasar]</sup> This usage includes, in particular, the infinite point of a [[projective line]],{{r|algebraic}} and the point added to a [[topological space]] to form its [[Alexandroff extension|one-point compactification]].{{r|hitchhiker}}
 
=== OtherPenggunaan technicalteknis useslainnya ===
[[Berkas:Infrarotindex_md_300_mm_IMGP1196.jpg|al=Minolta MD 4.5/300mm IF lens|jmpl|Side view of a camera lens, showing infinity symbol on the focal length indicator]]
InDalam areascabang otherselain than mathematicsmatematika, thesimbol infinitytakhingga symboldapat maydipakai takedalam onarti yang berkaitan otherdengan relatedyang meaningslainnya. For instanceMisalnya, itsimbol hastakhingga beendipakai used indalam [[bookbindingPenjilidan|penjilidan buku]] toyang indicatemenunjukkan that a bookbahwa isbuku <u>printed on [[acid-free paper]] and will therefore be long-lasting</u>.{{r|book}} OnDalam [[Camera|cameraskamera]] and their [[Lens|lenseslensa]]<nowiki/>nya, thesimbol infinitytakhingga symbolmenunjukkan indicates that the lens'sbahwa [[focaljarak lengthfokus]] lensa is [[Infinity focus|set to an infinite distance]], and is "probably one of the oldest symbols to be used on cameras".{{r|camera}}
 
=== Symbolism and literary uses ===
[[Berkas:RWS_Tarot_08_Strength.jpg|al=Strength tarot card, depicting a woman crowned by an infinity symbol, holding shut a lion's mouth|jmpl|The infinity symbol appears on several cards of the [[Rider–Waite tarot deck]].{{r|tarot}}]]
InDalam modernmistisme mysticismmodern, the infinity symbol has become identified with a variation of the [[ouroboros]], an<u>gambar ancientkuno</u> imagetentang of aseekor snakeular eatingyang itsmemakan ownekornya tailsendiri <u>that has also come to symbolize the infinite</u>, and the ouroboros is sometimes drawn in figure-eight form to reflect this identification—rather than in its more traditional circular form.{{r|dreams}}
 
InDalam the works ofkarya [[Vladimir Nabokov]], includingseperti ''[[The Gift (NabokovNovel novelNabokov)|The Gift]]'' anddan ''[[Pale Fire]]'', thegambar figure-eightberbentuk shapeangka isdelapan useddipakai symbolicallysecara tosimbolis refer to themerujuk [[pita Möbius strip]] and thedan infinitetakhingga, as is the case in these books' descriptions of the shapes of bicycle tire tracks and of the outlines of half-remembered people. Nabokov's poem after which he entitled ''Pale Fire'' explicitly refers to "the miracle of the lemniscate".{{r|nabokov}} Other authors whose works use this shape with its symbolic meaning of the infinite include [[James Joyce]], in ''[[Ulysses (novel)|Ulysses]]'',{{r|sands}} and [[David Foster Wallace]], in ''[[Infinite Jest]]''.{{r|wallace}}
 
=== Desain grafis ===
Bentuk yang terkenal dan arti simbol takhingga ini menjadikan elemen [[tipografi]] yang umum dalam [[desain grafis]]. Misalnya, [[bendera Métis]], yang dipakai oleh orang-orang [[Orang Métis Kanada|Métis]] Kanada sejak awal abad ke-19. {{r|flags}} DifferentAda theoriesteori haveyang beenberbeda putyang forwardmengemukakan forarti thesimbol meaningdari ofbendera the symbol on this flagtersebut, including the hope for an infinite future for Métis culture and its mix of European and [[First Nations in Canada|First Nations]] traditions,{{r|gaudry|dumont}} but also evoking the geometric shapes of Métic dances,{{r|racette}}, [[Celtic knot|Celtic knots]],{{r|prefontaine}} or [[Plains Indian Sign Language|Plains First Nations Sign Language]].{{r|barkwell}}
 
A [[rainbow]]-coloured infinity symbol is also used by the [[neurodiversity movement]], as a way to symbolize the infinite variation of the people in the movement and of human cognition.{{r|autism}} The [[Bakelite]] company took up this symbol in its corporate logo to refer to the wide range of varied applications of the synthetic material they produced.{{r|bakelite}} Versions of this symbol have been used in other trademarks, corporate logos, and emblems including those of [[Fujitsu]],{{r|brands}} [[Cell Press]],{{r|inspires}} and the [[2022 FIFA World Cup]].{{r|qatar}}
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