## C# Math.Exp() – Examples

In this tutorial, we will learn about the C# Math.Exp() method, and learn how to use this method to calculate e raised to a specified power, with the help of examples.

## Exp(Double)

Math.Exp(d) returns `e` raised to the specified power `d`.

### Syntax

The syntax of Exp() method is

`Math.Exp(Double d)`

where

Return Value

The method returns value of type Double.

### Example 1 – Exp(1)

In this example, we will find the value of `e` raised to the power of `1`. So, Exp() should return the value of `e`.

C# Program

```using System;

class Example {
static void Main(string[] args) {
Double d = 1;
Double result = Math.Exp(d);
Console.WriteLine(\$"e^{d} = {result}");
}
}```

Output

`e^1 = 2.71828182845905`

### Example 2 – Exp(2.5)

In this example, we will find the value of `e` raised to the power of `2.5` using Math.Exp() method.

C# Program

```using System;

class Example {
static void Main(string[] args) {
Double d = 2.5;
Double result = Math.Exp(d);
Console.WriteLine(\$"e^{d} = {result}");
}
}```

Output

`e^2.5 = 12.1824939607035`

### Example 3 – Exp(Positive Infinity)

In this example, we will find the value of `e` raised to the power of positive infinity. Since the value of `e` is 2.718 which is greater than 1, then `e` raised to the power of positive infinity should result positive infinity.

C# Program

```using System;

class Example {
static void Main(string[] args) {
Double d = Double.PositiveInfinity;
Double result = Math.Exp(d);
Console.WriteLine(\$"e^{d} = {result}");
}
}```

Output

`e^∞ = ∞`

### Example 4 – Exp(Negative Infinity)

In this example, we will find the value of `e` raised to the power of negative infinity. Since the value of `e` is 2.718 which is greater than 1, then `e` raised to the power of negative infinity should result zero.

C# Program

```using System;

class Example {
static void Main(string[] args) {
Double d = Double.NegativeInfinity;
Double result = Math.Exp(d);
Console.WriteLine(\$"e^{d} = {result}");
}
}```

Output

`e^-∞ = 0`

### Example 5 – Exp(Zero)

In this example, we will find the value of `e` raised to the power of zero. We know that any number to the power of zero is one. So, in this case, `Math.Exp(0)` should return `1`.

C# Program

```using System;

class Example {
static void Main(string[] args) {
Double d = 0;
Double result = Math.Exp(d);
Console.WriteLine(\$"e^{d} = {result}");
}
}```

Output

`e^0 = 1`

### Conclusion

In this C# Tutorial, we have learnt the syntax of C# Math.Exp() method, and also learnt how to use this method with the help of C# example programs.