Complex.Atan(Complex) 方法

定义

命名空间:

System.Numerics

程序集:

System.Runtime.Numerics.dll

Source:

Complex.cs

返回表示指定复数的反正切的角度。

public:
 static System::Numerics::Complex Atan(System::Numerics::Complex value);

public static System.Numerics.Complex Atan (System.Numerics.Complex value);

static member Atan : System.Numerics.Complex -> System.Numerics.Complex

Public Shared Function Atan (value As Complex) As Complex

参数

value

Complex

一个复数。

返回

Complex

表示 value 的反正切值的角度。

示例

以下示例演示 了 Atan 方法。 它表明，将 方法返回 Atan 的值传递给 Tan 方法将返回原始 Complex 值。

using System;
using System.Numerics;

public class Example
{
   public static void Main()
   {
      Complex[] values = { new Complex(2.5, 1.5),
                           new Complex(2.5, -1.5),
                           new Complex(-2.5, 1.5),
                           new Complex(-2.5, -1.5) };
      foreach (Complex value in values)
         Console.WriteLine("Tan(Atan({0})) = {1}",
                            value, Complex.Tan(Complex.Atan(value)));
   }
}
// The example displays the following output:
//       Tan(Atan((2.5, 1.5))) = (2.5, 1.5)
//       Tan(Atan((2.5, -1.5))) = (2.5, -1.5)
//       Tan(Atan((-2.5, 1.5))) = (-2.5, 1.5)
//       Tan(Atan((-2.5, -1.5))) = (-2.5, -1.5)

Imports System.Numerics

Module Example
   Public Sub Main()
      Dim values() As Complex = { New Complex(2.5, 1.5), 
                                  New Complex(2.5, -1.5), 
                                  New Complex(-2.5, 1.5), 
                                  New Complex(-2.5, -1.5) }
      For Each value As Complex In values
         Console.WriteLine("Tan(Atan({0})) = {1}", 
                            value, Complex.Tan(Complex.Atan(value)))
      Next                               
   End Sub
End Module
' The example displays the following example:
'       Tan(Atan((2.5, 1.5))) = (2.5, 1.5)
'       Tan(Atan((2.5, -1.5))) = (2.5, -1.5)
'       Tan(Atan((-2.5, 1.5))) = (-2.5, 1.5)
'       Tan(Atan((-2.5, -1.5))) = (-2.5, -1.5)

注解

Atan复数的 方法对应于Math.Atan实数的 方法。

方法 Atan 使用以下公式：

ImaginaryOne (/新复杂 (2.0,0.0) ) * (Log (OneImaginaryOne - * 值) - Log (One + 虚构 * 值) )

另请参阅

• Tan(Complex)
• Atan(Double)