## Ln

```
Ln(z)
```

> returns the base-`E` logarithm of `z`. `Ln(z)` will be converted to `Log(z)` in symbolic mode.

See
* [Wikipedia - Logarithm](https://en.wikipedia.org/wiki/Logarithm)

### Examples

```
>> Ln(E)  
1

>> Ln(x)    
Log(x) 
```
