/** 
 Program: 	EssentialExpress Class
 Purpose: 	demonstrate Java math expressions;
 @author	john@december.com  
 @version	1.03; 21 Nov 95
 Note:          converted to 1.00 beta
 Output:
		example result = 308.123
		example result = 59.0567
		absolute value of -3 = 3
		a random number (0.0f to 1.0f) = 0.24827
		round(3.65f) = 4
		2 to the third power (2*2*2) = 8
		maximum of 3.98f and 14.2f = 14.2
 */

class EssentialExpress{
   public static void main (String args[]) {

      double example;   // double precision is available for math

      //math operations are available:
      example = (3+2) + 5*3/7 + 3.123f + (42*7 + 4);
      System.out.println("example result = " + example);

      //common math functions are available:
      example = Math.sin(0.50f) + Math.log(13) + Math.sqrt(2) + Math.exp(4);   
      System.out.println("example result = " + example);
				
      //other functions:
      System.out.println("absolute value of -3 = " + Math.abs(-3));
      System.out.println("a random number (0.0f to 1.0f) = " + Math.random());
      System.out.println("round(3.65f) = " + Math.round(3.65f));
      System.out.println("2 to the third power (2*2*2) = " + Math.pow(2, 3));
      System.out.println("maximum of 3.98f and 14.2f = " + Math.max(3.98f, 14.2f));
   }
}