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

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Created by:

Pearl-Hurley

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

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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:

Math.Log10(x) function visualization - C# Math Object.

1. Documentation

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Syntax	xxxxxxxxxx 1 namespace System 2 { 3 public static class Math 4 { 5 // ... 6 public static double Log10(double x) { ... } 7 // ... 8 } 9 }
Parameters	`x` - double value in the range `0` to `+Infinity` (primitive value).
Result	`number` value calculated as log_10(x) mathematical function (primitive value). If `x` is negative it returns `NaN`. If `x` is equal to `0` it returns `-Infinity`. If `x` is equal to `+Infinity` it returns `-Infinity`.
Description	`Log10` is a static method that takes one parameter and returns an approximation of the log_10(x) mathematical function (logarithm with base `10`). `log10` is called a common logarithm.