SQL Server/T-SQL/Transact SQL/ATAN
ATAN: Returns as a float data type, the angle in radians to the entered tangent
<source lang="sql">
1> -- ATAN: Returns as a float data type, the angle in radians to the entered tangent. 2> 3> SELECT ATAN(0.87) 4> GO
0.71599111441630015
(1 rows affected) 1>
</source>