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Program: How to calculate natural logarithm value of a number in java?


Description:

Below example shows how to calculate natural logarithm value of a given number using Math.log() function.


Code:
package com.java2novice.math;

public class MyLogEx {

	public static void main(String a[]){
		
		System.out.println("Natural logarithm value of 2 is: "+Math.log(2));
		System.out.println("Natural logarithm value of 10 is: "+Math.log(10));
		System.out.println("Natural logarithm value of 15 is: "+Math.log(15));
	}
}

Output:
Natural logarithm value of 2 is: 0.6931471805599453
Natural logarithm value of 10 is: 2.302585092994046
Natural logarithm value of 15 is: 2.70805020110221
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List Of All Math Class Sample Programs:

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  19. How to round-off decimal number to nearest integer in java?
  20. Example for Math.signum() method.
  21. How to get square root of a number in java?
  22. How to convert an angle from radians to degrees?
  23. How to convert an angle from degrees to radians?
  24. How to calculate trigonometric sine of an angle in java?
  25. How to calculate trigonometric cosine of an angle in java?
  26. How to calculate trigonometric tangent of an angle in java?
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Interface and its usage
Interface is similar to a class which may contain method's signature only but not bodies and it is a formal set of method and constant declarations that must be defined by the class that implements it. Interfaces are useful for declaring methods that one or more classes are expected to implement, capturing similarities between unrelated classes without forcing a class relationship and determining an object's programming interface without revealing the actual body of the class.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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