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Categories: Math

LN

Returns the natural logarithm of of the numeric expression.

Syntax​

LN(numeric_expression double) → float8​

  • numeric_expression: A number greater than 0.

Examples

LN example 
SELECT LN(0), LN(.1525), LN(1), LN(5.35), LN(5269853105789632584), LN(-1)
-- null, -1.8805906829346708, 0.0, 1.6770965609079151, 43.10853416239341, null