ATAN (Transact-SQL)
SQL Server 2008
Returns the angle in radians whose tangent is a specified float expression. This is also called arctangent.
The following example takes a float expression and returns the ATAN of the specified angle.
SELECT 'The ATAN of -45.01 is: ' + CONVERT(varchar, ATAN(-45.01)) SELECT 'The ATAN of -181.01 is: ' + CONVERT(varchar, ATAN(-181.01)) SELECT 'The ATAN of 0 is: ' + CONVERT(varchar, ATAN(0)) SELECT 'The ATAN of 0.1472738 is: ' + CONVERT(varchar, ATAN(0.1472738)) SELECT 'The ATAN of 197.1099392 is: ' + CONVERT(varchar, ATAN(197.1099392)) GO
Here is the result set.
-------------------------------
The ATAN of -45.01 is: -1.54858
(1 row(s) affected)
--------------------------------
The ATAN of -181.01 is: -1.56527
(1 row(s) affected)
--------------------------------
The ATAN of 0 is: 0
(1 row(s) affected)
----------------------------------
The ATAN of 0.1472738 is: 0.146223
(1 row(s) affected)
-----------------------------------
The ATAN of 197.1099392 is: 1.56572
(1 row(s) affected)
