LN - Find natural logarithm of a numerical value in Informatica

LN function returns natural logarithm of a numeric value.
Syntax
LN( numeric_value )

ArgumentRequired/OptionalDescription
numeric_valueRequiredNumeric datatype.It must be a positive number, greater than 0. Passes the values for which you want to calculate the natural logarithm. You can enter any valid transformation expression.

Example : Find natural logarithm of numbers
NUMBERSRETURN VALUE
102.302585092994
1254.828313737302
0.96-0.04082199452026
NULLNULL
-90Error. (The Integration Service does not write row.)
0Error. (The Integration Service does not write row.)

Numeric value should be greater than zero, if the value is zero or negative informatica throws error