# LN

Spread for WinForms provides advanced software components that support Excel import/export, full cell customization, an extensive calculation engine with over 450 functions and more, all with zero dependencies on Excel.

## Content



This function returns the natural logarithm of the specified number.

## Syntax

LN(*value*)

## Arguments

For the argument, specify a positive numeric value.

## Remarks

This function is the inverse of [EXP](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsDtoG/FunctionEXP), so LN(EXP(x)) is x.

## Data Types

Accepts numeric data. Returns numeric data.

## Examples

`LN(B3)`
`LN(R1C2)`
`LN(10)` gives the result 2.3025850930
`LN(exp(1))` gives the result 1

## Version Available

This function is available in product version 1.0 or later.

## See Also

[EXP](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsDtoG/FunctionEXP) \| [LOG](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsFtoK/FunctionLOG) \| [LOGINV](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsFtoK/FunctionLOGINV) \| [Math and Trigonometry Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsmathtrig)