The Ultimate Guide to High Availability with MariaDB

LN

Syntax

LN(X)

Description

Returns the natural logarithm of X; that is, the base-e logarithm of X. If X is less than or equal to 0, or NULL, then NULL is returned.

The inverse of this function is EXP().

Examples

SELECT LN(2);
+-------------------+
| LN(2)             |
+-------------------+
| 0.693147180559945 |
+-------------------+

SELECT LN(-2);
+--------+
| LN(-2) |
+--------+
|   NULL |
+--------+

Comments

Comments loading...
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.