LN function

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.

Examples

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)

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