elasticsearch/docs/reference/query-languages/esql/_snippets/functions/examples/log.md

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**Examples**

```esql
ROW base = 2.0, value = 8.0
| EVAL s = LOG(base, value)
```

| base: double | value: double | s:double |
| --- | --- | --- |
| 2.0 | 8.0 | 3.0 |

```esql
ROW value = 100
| EVAL s = LOG(value);
```

| value: integer | s:double |
| --- | --- |
| 100 | 4.605170185988092 |