SqlFunctions.Atan 方法

定义

一个数学函数,该函数返回其正切为指定数值的角(以弧度表示)。A mathematical function that returns the angle, in radians, whose tangent is the specified numerical value. 此角称作反正切。This angle is called the arctangent.

重载

Atan(Nullable<Decimal>)

一个数学函数,该函数返回其正切为指定数值的角(以弧度表示)。A mathematical function that returns the angle, in radians, whose tangent is the specified numerical value. 此角称作反正切。This angle is called the arctangent.

Atan(Nullable<Double>)

一个数学函数,该函数返回其正切为指定数值的角(以弧度表示)。A mathematical function that returns the angle, in radians, whose tangent is the specified numerical value. 此角称作反正切。This angle is called the arctangent.

注解

不能直接调用此函数。You cannot call this function directly. 此函数只能出现在 LINQ to Entities 查询中。This function can only appear within a LINQ to Entities query.

此函数已转换为数据库中的相应函数。This function is translated to a corresponding function in the database. 有关相应 SQL Server 函数的信息,请参阅 ATAN (transact-sql) For information about the corresponding SQL Server function, see ATAN (Transact-SQL).

Atan(Nullable<Decimal>)

一个数学函数,该函数返回其正切为指定数值的角(以弧度表示)。A mathematical function that returns the angle, in radians, whose tangent is the specified numerical value. 此角称作反正切。This angle is called the arctangent.

public:
 static Nullable<double> Atan(Nullable<System::Decimal> arg);
[System.Data.Objects.DataClasses.EdmFunction("SqlServer", "ATAN")]
public static double? Atan (decimal? arg);
[<System.Data.Objects.DataClasses.EdmFunction("SqlServer", "ATAN")>]
static member Atan : Nullable<decimal> -> Nullable<double>
Public Shared Function Atan (arg As Nullable(Of Decimal)) As Nullable(Of Double)

参数

arg
Nullable<Decimal>

角的正切。The tangent of an angle.

返回

Nullable<Double>

以弧度计量的角度。An angle, measured in radians.

属性

注解

不能直接调用此函数。You cannot call this function directly. 此函数只能出现在 LINQ to Entities 查询中。This function can only appear within a LINQ to Entities query.

此函数已转换为数据库中的相应函数。This function is translated to a corresponding function in the database. 有关相应 SQL Server 函数的信息,请参阅 ATAN (transact-sql) For information about the corresponding SQL Server function, see ATAN (Transact-SQL).

适用于

Atan(Nullable<Double>)

一个数学函数,该函数返回其正切为指定数值的角(以弧度表示)。A mathematical function that returns the angle, in radians, whose tangent is the specified numerical value. 此角称作反正切。This angle is called the arctangent.

public:
 static Nullable<double> Atan(Nullable<double> arg);
[System.Data.Objects.DataClasses.EdmFunction("SqlServer", "ATAN")]
public static double? Atan (double? arg);
[<System.Data.Objects.DataClasses.EdmFunction("SqlServer", "ATAN")>]
static member Atan : Nullable<double> -> Nullable<double>
Public Shared Function Atan (arg As Nullable(Of Double)) As Nullable(Of Double)

参数

arg
Nullable<Double>

角的正切。The tangent of an angle.

返回

Nullable<Double>

以弧度计量的角度。An angle, measured in radians.

属性

注解

不能直接调用此函数。You cannot call this function directly. 此函数只能出现在 LINQ to Entities 查询中。This function can only appear within a LINQ to Entities query.

此函数已转换为数据库中的相应函数。This function is translated to a corresponding function in the database. 有关相应 SQL Server 函数的信息,请参阅 ATAN (transact-sql) For information about the corresponding SQL Server function, see ATAN (Transact-SQL).

适用于