LN()
<< LEFT() | FB 2.5 Language Reference | LOG() >>
<< LEFT() | FB 2.1 Language Reference | LOG() >>
LN()
Added in: 2.1
Description
Returns the natural logarithm of the argument.
Result type: DOUBLE PRECISION
Syntax
LN (number)
- An error is raised if the argument is negative or 0.
Important: If the external function LN
is declared in your database, it will override the internal function. To make the internal function available, DROP
or ALTER
the external function (UDF).
See also:
EXP()
back to top of page
<< LEFT() | FB 2.5 Language Reference | LOG() >>
<< LEFT() | FB 2.1 Language Reference | LOG() >>