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What is e in logarithmic function?
e = 2.7 1828 1828459 ……

E is the base of natural logarithm and an infinite acyclic decimal. You will know after learning advanced mathematics. log e=ln。 Generally used in calculations involving logarithmic operations, it is a mathematical symbol with no specific meaning.

e= 1+ 1/ 1! + 1/2! + 1/3! +……+ 1/n! +…… .

e≈ 1+ 1/ 1! + 1/2! + 1/3! +……+ 1/n! The greater the n, the better the approximation.