C# / .NET - Math.Log10() method example

The Math.Log10() method returns the logarithm with base 10 of a number. 

using System;

public class Program
{
    public static void Main(string[] args) 
    {
        // Logarithm with base 10:
        //                             x            y
        Console.WriteLine( Math.Log10( 1    ) ); // 0
        Console.WriteLine( Math.Log10( 3    ) ); // 0.47712125471966244
        Console.WriteLine( Math.Log10( 10   ) ); // 1
        Console.WriteLine( Math.Log10( 100  ) ); // 2
        Console.WriteLine( Math.Log10( 1000 ) ); // 3

        Console.WriteLine( Math.Log10( -1        ) ); //  NaN
        Console.WriteLine( Math.Log10(  0        ) ); //  -∞ / -Infinity
        Console.WriteLine( Math.Log10( Double.PositiveInfinity ) ); //  ∞ / +Infinity
    }
}

The Math.Log10() method is presented on the following chart:

1. Documentation

namespace System
{
    public static class Math
    {
        // ...
        public static double Log10(double x) { ... }
        // ...
    }
}

References

1. Logarithm - Wikipedia