Amazon Redshift will no longer support the use of Python UDFs after June 30, 2026. We will start enforcing it in phases. For more information on the details of Python end of life and migration options, see the [ blog post ](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/) that was published on June 30, 2025. 

# COT function
<a name="r_COT"></a>

COT is a trigonometric function that returns the cotangent of a number. The input parameter must be nonzero. 

## Syntax
<a name="r_COT-synopsis"></a>

```
COT(number)
```

## Argument
<a name="r_COT-argument"></a>

 *number*   
The input parameter is a `DOUBLE PRECISION` number. 

## Return type
<a name="r_COT-return-type"></a>

`DOUBLE PRECISION`

## Examples
<a name="r_COT-examples"></a>

To return the cotangent of 1, use the following example. 

```
SELECT COT(1);

+--------------------+
|        cot         |
+--------------------+
| 0.6420926159343306 |
+--------------------+
```