SQL Server/T-SQL/Math Functions/COS

ACOS is the inverse of COS

   <source lang="sql">

1> -- ACOS is the inverse of COS: 2> 3> SELECT COS(ACOS(0.5)) 4> GO

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    0.49999999999999989

(1 rows affected) 1>

      </source>
   
  

COS: return a float value that is the cosine of the angle

   <source lang="sql">

1> -- COS: return a float value that is the cosine of the angle. 2> -- Note that this angle passed in must be in radians. 3> 4> SELECT COS(1.2) 5> GO

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    0.36235775447667362

(1 rows affected) 1>

      </source>