Complex.Atan(Complex) Méthode

Définition

Retourne l'angle qui correspond à la tangente d'arc du nombre complexe spécifié.Returns the angle that is the arc tangent of the specified complex number.

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

Paramètres

value
Complex

Nombre complexe.A complex number.

Retours

Angle qui correspond à la tangente d'arc de value.The angle that is the arc tangent of value.

Exemples

L’exemple suivant illustre la méthode Atan.The following example illustrates the Atan method. Elle indique que le passage de la valeur retournée par la méthode Atan à la méthode Tan retourne la valeur de Complex d’origine.It shows that passing the value returned by the Atan method to the Tan method returns the original Complex value.

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)

Remarques

La méthode Atan pour les nombres complexes correspond à la méthode Math.Atan pour les nombres réels.The Atan method for complex numbers corresponds to the Math.Atan method for real numbers.

La méthode Atan utilise la formule suivante :The Atan method uses the following formula:

(ImaginaryOne/nouveau complexe (2.0, 0,0)) * (Log(One - ImaginaryOne *)-Log(valeurOne + ImaginaryOne *))(ImaginaryOne / new Complex(2.0, 0.0)) * (Log(One - ImaginaryOne * value) - Log(One + ImaginaryOne * value))

S’applique à

Voir aussi