# COT (Transact-SQL)

**THIS TOPIC APPLIES TO:**SQL Server (starting with 2008)Azure SQL DatabaseAzure SQL Data Warehouse Parallel Data Warehouse

A mathematical function that returns the trigonometric cotangent of the specified angle, in radians, in the specified **float** expression.

Transact-SQL Syntax Conventions

## Syntax

```
-- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse
COT ( float_expression )
```

## Arguments

*float_expression*

Is an expressionof type **float** or of a type that can be implicitly converted to **float**.

## Return Types

**float**

## Examples

The following example returns the COT for the specific angle.

```
DECLARE @angle float;
SET @angle = 124.1332;
SELECT 'The COT of the angle is: ' + CONVERT(varchar,COT(@angle));
GO
```

Here is the result set.

```
The COT of the angle is: -0.040312
(1 row(s) affected)
```

## Examples: Azure SQL Data Warehouse and Parallel Data Warehouse

The following example returns the COT for the specific angle.

```
DECLARE @angle float;
SET @angle = 124.1332;
SELECT 'The COT of the angle is: ' + CONVERT(varchar,COT(@angle));
GO
```

Here is the result set.

```
The COT of the angle is: -0.040312
(1 row(s) affected)
```