LN

**Syntax:** **LN( X)**

*X* = a numeric value greater than 0

**LN** returns the log base *e* of *X*. The inverse of **LN** is
the exponentiation function **EXP**.

**Examples:**

**LN**(6) = 1.7917595

**LN**(**EXP**(X4)) = 10, where X4 = 10

**LN**(-1) = Error - **LN**, domain is x 0

**Excel function:** LN

Grey Trout Software

02 March 2003