Mathematical Functions in Java

The java.lang.Math class contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions. This class provides mathematical functions in Java.

Let us see some of these functions −

Let us now see an example to return the absolute value of a long value using the abs(long a) function in Java. Here, a is the argument whose absolute value is to be determined −

Example

import java.util.*;
public class Demo {
   public static void main( String args[] ) {
      // get some longs to find their absolute values
      long x = 76487687634l;
      long y = -1876487618764l;
      // get and print their absolute values
      System.out.println("Math.abs(" + x + ")=" + Math.abs(x));
      System.out.println("Math.abs(" + y + ")=" + Math.abs(y));
      System.out.println("Math.abs(-18885785959l)=" + Math.abs(-18885785959l));
   }
}

Output

Math.abs(76487687634)=76487687634
Math.abs(-1876487618764)=1876487618764
Math.abs(-18885785959l)=18885785959

Example

Let us see another example wherein we are returning the hyperbolic sine of a double value −

import java.util.*;
public class Demo {
   public static void main( String args[] ) {
      // get two double numbers numbers
      double x = 45;
      double y = -180;
      // convert them to radians
      x = Math.toRadians(x);
      y = Math.toRadians(y);
      // print the hyperbolic sine for these doubles
      System.out.println("sinh(" + x + ")=" + Math.sinh(x));
      System.out.println("sinh(" + y + ")=" + Math.sinh(y));
   }
}

Output

sinh(0.7853981633974483)=0.8686709614860095
sinh(-3.141592653589793)=-11.548739357257748