> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firebolt.io/llms.txt
> Use this file to discover all available pages before exploring further.

> Reference material for COT function

# COT

Trigonometric function that calculates the cotangent of a specific value in radians.

## Syntax

```sql theme={"theme":{"light":"css-variables","dark":"css-variables"}}
COT(<value>)
```

## Parameters

| Parameter | Description                                                       | Supported input types |
| :-------- | :---------------------------------------------------------------- | :-------------------- |
| `<value>` | The value which the `COT` function will be applied to in radians. | `DOUBLE PRECISION`    |

## Return Types

`COT` returns a value of type `DOUBLE PRECISION`.

## Example

The following query calculates the cotangent of 1.57 radians. 1.57 is approximately pi/2:

<div className="query-window">
  ```
  SELECT COT(1.57) as result;
  ```

  | result <span>double</span> |
  | :------------------------- |
  | 0.0007963269632231926      |

  <p><span>Rows: 1</span><span>Execution time: 5.46ms</span></p>
</div>