# **LOG()**

## **Function Description**

The LOG(X) function returns the natural logarithm of X.

## **Function Syntax**

```text
> LOG(X)
```

## **Parameter definition**

| Parameters | Description |
| ---- | ---- |
| X | Required parameters, any currently supported numerical data |

## **Example**

```text
drop table if exists t1;
create table t1(a float, b float);
insert into t1 values(2,8);

mysql> select log(a), log(b) from t1;
+------------------------------------------------------------------------------------------------------------------------------
| log(a) | log(b) |
+------------------------------------------------------------------------------------------------------------------------------
| 0.6931471805599453 | 2.0794415416798357 |
+------------------------------------------------------------------------------------------------------------------------------
1 row in set (0.00 sec)
```

## **limit**

LOG(X) currently only supports single-parameter input.