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The LN SQL Function in MySQL and MariaDB - Natural logarithm

LNSyntax:LN(Number)
Return value:FLOAT
Synonyms:LOG
Function type:Numeric function
Function Description

The LN() function returns the natural logarithm of "Number".

If the value of "Number" is less than or equal to 0, NULL is returned.

In contrast to the LOG() function, no "Base" can be specified with LN().

If "number" is NULL, NULL is returned.


The reverse function is the EXP() function.

SQL Examples for the LN function

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select ln(2.4) as result;
select ln(2) as result;
select ln(-2) as result;

result
double(23)
0.8754687373538999
result
double(23)
0.6931471805599453
result
double(23)
NULL
The examples were created with the MyWAY SQL manager: Download

How to use the LN() function in MySQL and MariaDB databases

The LN() function in MySQL and MariaDB is used in mathematical and statistical calculations, such as exponential growth and decay models, financial calculations, and probability distributions. The function uses floating-point arithmetic, so the precision of the result depends on the underlying data type.
LEFTLENGTHLENGTHBLNLOCALTIMELOCALTIMESTAMPLOCATE

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More information about the LN SQL function: mysql.com and mariadb.com and w3schools.com
Updated: 2023-09-24ImprintContactTerms & conditionsPrivacy & CookiesUpdatesSitemapFacebookLinkedinTwitterStatistics©2020-2024 Heino Cunze-Fischer