# Complex.Exp Method (Complex)

.NET Framework (current version)

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

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

## Syntax

```public static Complex Exp(
Complex value
)
```

#### Parameters

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.

## 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.

## 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.

```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)
```

## Version Information

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