SqlFunctions.Atan Method (Nullable<Double>)
A mathematical function that returns the angle, in radians, whose tangent is the specified numerical value. This angle is called the arctangent.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
You cannot call this function directly. This function can only appear within a LINQ to Entities query.
This function is translated to a corresponding function in the database. For information about the corresponding SQL Server function, see ATAN (Transact-SQL).
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.