Complex.Exp(Complex) Method

Definition

Namespace:

System.Numerics

Assemblies:

netstandard.dll, System.Runtime.Numerics.dll

Source:

Complex.cs

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

C#

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

Parameters

value

Complex

A complex number that specifies a power.

Returns

Complex

The number e raised to the power value.

Examples

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.

C#

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, 
                           Complex.Exp(Complex.Log(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)

Remarks

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.

Applies to

See also

• Exp(Double)