C# Log10()

In C#, the Math.Log10() method calculates the base-10 logarithm of a given number. This logarithm represents the power to which 10 must be raised to obtain the input value. The method is defined in the System namespace.

Syntax

Math.Log10(number);

Parameters:

• number: A double value whose base-10 logarithm is computed.

Return value:

Returns a double that represents the base-10 logarithm of number.

Return values for different inputs:

• If the input is a positive number, the method returns its base-10 logarithm.
• If the input is 0, the method returns NegativeInfinity.
• If the input is a negative number, the method returns NaN.
• If the input is NaN, the method returns NaN.
• If the input is PositiveInfinity, the method returns PositiveInfinity.
• If the input is NegativeInfinity, the method returns NaN.

Example

The example below demonstrates the return values of Math.Log10() for different inputs:

using System;

class Geeks {
  public static void Main(String[] args) {
    double a = 4.55;
    double b = 0;
    double c = -2.45;
    double nan = Double.NaN;
    double positiveInfinity = Double.PositiveInfinity;
    double negativeInfinity = Double.NegativeInfinity;

    Console.WriteLine(Math.Log10(a));
    Console.WriteLine(Math.Log10(b));
    Console.WriteLine(Math.Log10(c));
    Console.WriteLine(Math.Log10(nan));
    Console.WriteLine(Math.Log10(positiveInfinity));
    Console.WriteLine(Math.Log10(negativeInfinity));
  }
}

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The output of the code is:

0.658011396657112
-Infinity
NaN
NaN
Infinity
NaN

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Codebyte Example

This codebyte example calculates the base-10 logarithm of a given number and prints the result:

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