COT (Transact-SQL)

float_expression

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

float

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)

Reference