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Java - Math.log10() method example

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Created by:
Dirask Admin - Marvin
1820

The Math.log10() method returns the logarithm with base 10 of a number. 

public class MathExample {
    
    public static void main(String[] args) {
        // Logarithm with base 10:
        //                              x            y
        System.out.println( Math.log10( 1    ) ); // 0.0
        System.out.println( Math.log10( 3    ) ); // 0.47712125471966244
        System.out.println( Math.log10( 10   ) ); // 1.0
        System.out.println( Math.log10( 100  ) ); // 2.0
        System.out.println( Math.log10( 1000 ) ); // 3.0

        System.out.println( Math.log10( -1        ) ); //  NaN
        System.out.println( Math.log10(  0        ) ); // -Infinity
        System.out.println( Math.log10( Double.POSITIVE_INFINITY ) ); // +Infinity
    }
}

The Math.log10() method is presented on the following chart:

Math.log10(x) function visualization - Java Math Object.
Math.log10(x) function visualization - Java Math Object.

1. Documentation

Syntax
package java.lang;

public final class Math {

    public static double log10(double x) { ... }

}

Note: Classes in the java.lang package are imported automatically, so it is not necessary to do it manually - we use just Math.log10() call.

Parametersx - 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.

References

  1. Logarithm - Wikipedia

Java - Math object

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