"∞" redirects here. For other uses, see infinity (disambiguation) and infinity sign (disambiguation).
Infinity symbol
In Unicode
U+221E∞INFINITY (∞)
Different from
Different from
U+267E♾PERMANENT PAPER SIGN U+26AD⚭MARRIAGE SYMBOL U+221D∝PROPORTIONAL TO
The infinity symbol (∞) is a mathematical symbol representing the concept of infinity. This symbol is also called a lemniscate,[1] after the lemniscate curves of a similar shape studied in algebraic geometry,[2] or "lazy eight", in the terminology of livestock branding.[3]
This symbol was first used mathematically by John Wallis in the 17th century, although it has a longer history of other uses. In mathematics, it often refers to infinite processes (potential infinity) rather than infinite values (actual infinity). It has other related technical meanings, such as the use of long-lasting paper in bookbinding, and has been used for its symbolic value of the infinite in modern mysticism and literature. It is a common element of graphic design, for instance in corporate logos as well as in older designs such as the Métis flag.
Both the infinity symbol itself and several variations of the symbol are available in various character encodings.
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The infinitysymbol (∞) is a mathematical symbol representing the concept of infinity. This symbol is also called a lemniscate, after the lemniscate curves...
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