Article
11/18/2011

Complex Constructor

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Initializes a new instance of the Complex structure using the specified real and imaginary values.

Namespace: System.Numerics
Assembly: System.Numerics (in System.Numerics.dll)

Syntax

'Declaration
Public Sub New ( _
    real As Double, _
    imaginary As Double _
)

public Complex(
    double real,
    double imaginary
)

Parameters

real
Type: System.Double
The real part of the complex number.

imaginary
Type: System.Double
The imaginary part of the complex number.

Remarks

The real or imaginary arguments may lose precision if they are data types that require an explicit cast to Double.

Examples

The following example instantiates two complex numbers, and then uses them in addition, subtraction, multiplication, and division operations.

Imports System.Numerics

Module Example
   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      Dim complex1 As New Complex(17.34, 12.87)
      Dim Complex2 As New Complex(8.76, 5.19)

      outputBlock.Text += String.Format("{0} + {1} = {2}", complex1, complex2,  
                                          complex1 + complex2) + vbCrLf
      outputBlock.Text += String.Format("{0} - {1} = {2}", complex1, complex2,  
                                          complex1 - complex2) + vbCrLf
      outputBlock.Text += String.Format("{0} * {1} = {2}", complex1, complex2,  
                                          complex1 * complex2) + vbCrLf
      outputBlock.Text += String.Format("{0} / {1} = {2}", complex1, complex2,  
                                          complex1 / complex2) + vbCrLf
   End Sub
End Module
' The example displays the following output:
'    (17.34, 12.87) + (8.76, 5.19) = (26.1, 18.06)
'    (17.34, 12.87) - (8.76, 5.19) = (8.58, 7.68)
'    (17.34, 12.87) * (8.76, 5.19) = (85.1031, 202.7358)
'    (17.34, 12.87) / (8.76, 5.19) = (2.10944241403558, 0.219405693054265)

using System;
using System.Numerics;

public class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      Complex complex1 = new Complex(17.34, 12.87);
      Complex complex2 = new Complex(8.76, 5.19);

      outputBlock.Text += String.Format("{0} + {1} = {2}", complex1, complex2,
                                          complex1 + complex2) + "\n";
      outputBlock.Text += String.Format("{0} - {1} = {2}", complex1, complex2,
                                          complex1 - complex2) + "\n";
      outputBlock.Text += String.Format("{0} * {1} = {2}", complex1, complex2,
                                          complex1 * complex2) + "\n";
      outputBlock.Text += String.Format("{0} / {1} = {2}", complex1, complex2,
                                          complex1 / complex2) + "\n";
   }
}
// The example displays the following output:
//    (17.34, 12.87) + (8.76, 5.19) = (26.1, 18.06)
//    (17.34, 12.87) - (8.76, 5.19) = (8.58, 7.68)
//    (17.34, 12.87) * (8.76, 5.19) = (85.1031, 202.7358)
//    (17.34, 12.87) / (8.76, 5.19) = (2.10944241403558, 0.219405693054265)

Version Information

Silverlight

Supported in: 5, 4

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Share via