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flag English language

What is the origin of the symbol of integral in mathematics?
It is an elongated letter S, from the Latin "summa" (sum)
It is a curled symbol /, meaning division
It symbolizes two brackets connected together
It is a letter f, from the English "function"
The notation was introduced by the German mathematician Gottfried Wilhelm Leibniz in 1675 in his private writings; The symbol was based on the ſ (long s) character, and was chosen because Leibniz thought of the integral as an infinite sum of infinitesimal summands.
Ts
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wikipedia → Integral symbol
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Very interesting!

flag Polish language

Skąd pochodzi symbol całki?
to wydłużona litera S, od łacińskiego "summa" (suma)
to zakręcony symbol /, od symbolu dzielenia
symbolizuje połączone ze sobą dwa nawiasy
ma przypominać literę f, od angielskiego "function" (funkcja)
Matematyk XVII-wieczny Gottfried Wilhelm von Leibniz oparł symbol całki na łacińskim słowie "summa" (suma), które pisał "ſumma". Całkowanie jest bowiem uogólnieniem sumowania.
Bonawentura
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Very interesting!