See also: ſ [U+017F LATIN SMALL LETTER LONG S] and ʃ [U+0283 LATIN SMALL LETTER ESH]
U+222B, ∫
(LaTeX: \int)
INTEGRAL

[U+222A]
Mathematical Operators
[U+222C]

TranslingualEdit

 
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EtymologyEdit

Gottfried Leibniz based the symbol on the Latin word summa (sum), which he wrote ſumma (with a long s 'ſ' ). This use first appeared publicly in his paper De Geometria, published in Acta Eruditorum of June, 1686,[1] but he had been using it in private manuscripts since at least 1675.[2]

SymbolEdit

  1. (mathematics) Denotes the integral

Related termsEdit

ReferencesEdit

  1. ^ Mathematics and its History, John Stillwell, Springer 1989, p. 110
  2. ^ Early Mathematical Manuscripts of Leibniz, J. M. Child, Open Court Publishing Co., 1920, pp. 73–74, 80.