| Firebird Documentation Index → Firebird 2.5 Language Ref. Update → External functions (UDFs) → ln |
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Library: ib_udf
Added in: IB
Better alternative: Internal function LN()
Description: Returns the natural logarithm of the argument.
Result type: DOUBLE PRECISION
Syntax:
ln (number)
Declaration:
DECLARE EXTERNAL FUNCTION ln DOUBLE PRECISION RETURNS DOUBLE PRECISION BY VALUE ENTRY_POINT 'IB_UDF_ln' MODULE_NAME 'ib_udf'
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| Firebird Documentation Index → Firebird 2.5 Language Ref. Update → External functions (UDFs) → ln |