LN

Returns the natural logarithm of a number. Natural logarithms are based on the constant e (2.71828182845904).

Syntax

LN(number)

Number    is the positive real number for which you want the natural logarithm.

Remark

LN is the inverse of the EXP function.

Example

Formula	Description (Result)
=LN(86)	Natural logarithm of 86 (4.454347)
=LN(2.7182818)	Natural logarithm of the value of the constant e (1)
=LN(EXP(3))	Natural logarithm of e raised to the power of 3 (3)