Integral Sign

The symbol used to denote an integral . The symbol was invented by Leibniz and chosen to be a stylized script "S" to stand for "summation."

See also

Integral, Integration Under the Integral Sign

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Cite this as:

Weisstein, Eric W. "Integral Sign." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/IntegralSign.html

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