versioned_docs/version-2.0/sql-manual/sql-functions/numeric-functions/tan.md

---
{
    "title": "TAN",
    "language": "en"
}
---

## tan

### description
#### Syntax

`DOUBLE tan(DOUBLE x)`
Returns the tangent of `x`, where `x` is in radians.

### example

```
mysql> select tan(0);
+----------+
| tan(0.0) |
+----------+
|        0 |
+----------+
mysql> select tan(1);
+--------------------+
| tan(1.0)           |
+--------------------+
| 1.5574077246549023 |
+--------------------+
```

### keywords
	TAN