C# | Math.Exp() Method

In C#, Exp() is a Math class method which is used to return the e raised to the specified power. Here e is a mathematical constant whose value is approximately 2.71828. Exp() is the inverse of Log().

Syntax:

public static double Exp (double num);

Parameter:

num: It is the required number of type System.Double which specifies a power.

Return Type: It returns a number e raised to the power num of type System.Double.

Note:

• If num is equal to NaN then the return value will be NaN.
• If num is equal to PositiveInfinity then the return value will be Infinity.
• If num is equal to NegativeInfinity then the return value will be 0.

Example 1:

// C# Program to illustrate the
// Math.Exp(Double) Method
using System;

class Geeks {

    // Main Method
    public static void Main()
    {

        // using the method
        Console.WriteLine(Math.Exp(10.0));
        Console.WriteLine(Math.Exp(15.57));
        Console.WriteLine(Math.Exp(529.548));
        Console.WriteLine(Math.Exp(0.00));
    }
}

Output:

22026.4657948067
5780495.71030692
9.54496417945595E+229
1

Example 2:

// C# Program to illustrate the
// Math.Exp(Double) Method by
// taking NaN, PositiveInfinity
// and NegativeInfinity]
using System;

class Geeks {

    // Main Method
    public static void Main()
    {

        // Taking NaN
        Console.WriteLine(Math.Exp(Double.NaN));

        // Taking PositiveInfinity
        Console.WriteLine(Math.Exp(Double.PositiveInfinity));

        // Taking NegativeInfinity
        Console.WriteLine(Math.Exp(Double.NegativeInfinity));
    }
}

Output:

NaN
Infinity
0

Reference: https://docs.microsoft.com/en-us/dotnet/api/system.math.exp?view=netcore-2.1