LN

Returns the natural logarithm of x; that is, the base-e logarithm of x. If x is less than or equal to 0.0E0, the function returns NULL.

Syntax

LN( <x> )

Examples

SELECT LN(2);

┌────────────────────┐
│        ln(2)       │
├────────────────────┤
│ 0.6931471805599453 │
└────────────────────┘