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Text lesson

log()

Example

Return the natural logarithm of different numbers:

System.out.println(Math.log(6));
System.out.println(Math.log(Math.E));
System.out.println(Math.log(2));
System.out.println(Math.log(1));
System.out.println(Math.log(0));
System.out.println(Math.log(-1));

Definition and Usage

The log() method in Java computes the natural logarithm of a given number, where the base of the logarithm is the mathematical constant e (approximately 2.718282), which is accessible in Java through the Math.E constant.

Syntax

public static double log(double number)

Parameter Values

Parameter	Description
number	The parameter of the log() method specifies the value for which the logarithm is calculated. If this value is negative, the method returns NaN (Not a Number). If the value is 0, it returns -Infinity.

Technical Details

Return	The log() method returns a double value representing the natural logarithm of a given number.
Java Version	Any