Summa (mathematics)
From HandWiki
The term summa is the Latin word for sum. It is also used as the name for the ∫ symbol used to represent the integral in calculus. It was first used to represent the limiting sum (Riemann sum) that inspired the integral by Leibniz on October 29, 1675.
References
- Burton, David M. The History of Mathematics - An Introduction, McGraw-Hill, 2002. ISBN:0-07-288523-8
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