C# has a built-in `Math` class that provides useful mathematical functions and operations. This class has the **`Log10()` function**, which is used to compute the *base 10 logarithm* of a specified number.

public static double Log10 (double value);

- **`value`**: This is of the `Double` type and represents the input value for which we have to find `Log10()`. Its range is *all double numbers*.


- **`Double`**: This returns a *positive* `Double` number representing the *base 10 log* of the `value`. 
- **`NaN`**: This returns an input of *negative* or `NaN` in `value`.
- **`PositiveInfinity`**: This returns an input of `PositiveInfinity` in `value`.

- **`NegativeInfinity`**: This returns an input of *0* in `value`.


using System;
class Educative
{
    static void Main()
    {
        double result = Math.Log10(20);
        System.Console.WriteLine("Log10(20) = "+ result);

        double result1 = Math.Log10(-20);
        System.Console.WriteLine("Log10(-20) = "+ result1);

        double result2 = Math.Log10(0);
        System.Console.WriteLine("Log10(0) = "+ result2);

        double result3 = Math.Log10(Double.PositiveInfinity);
        System.Console.WriteLine("Log10(∞) = "+ result3);
    }
}

What is Math.Log10() in C#?

Computes the base 10 logarithm of a double value, returns Double, NaN, PositiveInfinity, or NegativeInfinity.

What is Math.Log10() in C#?

Syntax

Parameters

Return value

Example