# ApCoCoA-1:Fn.LnN

From ApCoCoAWiki

## Fn.LnN

Returns the natural logarithm of a given value with a given accuracy.

### Syntax

Fn.LnN(Val:RAT,Acc:INT):RAT

### Description

This function returns the natural logarithm of `Val` rounded to the given accuracy `Acc`.

@param

*Val*The value of which to compute the natural logarithm.@param

*Acc*The desired accuracy.@return The natural logarithm of

`Val`rounded to accuracy`Acc`.

#### Example

R := Fn.LnN(5, 30); Dec(R, 40); 1.609437912434100374600759333226 -------------------------------