Complex.Exp Method (Complex)


Returns e raised to the power specified by a complex number.

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

public static Complex Exp(
	Complex value


Type: System.Numerics.Complex

A complex number that specifies a power.

Return Value

Type: System.Numerics.Complex

The number e raised to the power value.

Use the Pow method to calculate the powers of other bases.

The Exp method for complex numbers corresponds to the Math.Exp method for real numbers. Exp is the inverse of Log.

The following example illustrates the Exp method. It shows that, with some allowance for the lack of precision of the Double data type, passing the value returned by the Log method to the Exp method returns the original Complex value.

using System;
using System.Numerics;

public class Example
   public static void Main()
      Complex[] values = { new Complex(1.53, 9.26), 
                           new Complex(2.53, -8.12),
                           new Complex(-2.81, 5.32),
                           new Complex(-1.09, -3.43),
                           new Complex(Double.MinValue/2, Double.MinValue/2) };
      foreach (Complex value in values)
         Console.WriteLine("Exp(Log({0}) = {1}", value, 
// The example displays the following output:
//       Exp(Log((1.53, 9.26)) = (1.53, 9.26)
//       Exp(Log((2.53, -8.12)) = (2.53, -8.12)
//       Exp(Log((-2.81, 5.32)) = (-2.81, 5.32)
//       Exp(Log((-1.09, -3.43)) = (-1.09, -3.43)
//       Exp(Log((-8.98846567431158E+307, -8.98846567431158E+307)) = (-8.98846567431161E+307, -8.98846567431161E+307)

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 4.0
Windows Phone
Available since 8.1
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