# Complex.Tan(Complex) Méthode

## Définition

Retourne la tangente du nombre complexe spécifié.Returns the tangent of the specified complex number.

``````public:
static System::Numerics::Complex Tan(System::Numerics::Complex value);``````
``public static System.Numerics.Complex Tan (System.Numerics.Complex value);``
``static member Tan : System.Numerics.Complex -> System.Numerics.Complex``
``Public Shared Function Tan (value As Complex) As Complex``

#### Paramètres

value
Complex

Nombre complexe.A complex number.

#### Retours

Tangente de `value`.The tangent of `value`.

## Exemples

L’exemple suivant illustre la méthode Tan.The following example illustrates the Tan 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 Tan pour les nombres complexes correspond à la méthode Math.Tan pour les nombres réels.The Tan method for complex numbers corresponds to the Math.Tan method for real numbers.

La méthode Tan utilise la formule suivante pour calculer la tangente du nombre complexe `value`:The Tan method uses the following formula to calculate the tangent of the complex number `value`:

Sin(`value`)/Cos(`value`)Sin(`value`) / Cos(`value`)