/******************************************************************************

 *  Compilation:  javac DoubleOps.java

 *  Execution:    java DoubleOps a b

 *

 *  Illustrates the integer operations a + b, a * b, and a / b.

 *

 *  % java DoubleOps 1234 99

 *  1234.0 + 99.0 = 1333.0

 *  1234.0 * 99.0 = 122166.0

 *  1234.0 / 99.0 = 12.464646464646465

 *  1234.0 % 99.0 = 46.0

 *

 *  % java DoubleOps 10 -3

 *  10.0 + -3.0 = 7.0

 *  10.0 * -3.0 = -30.0

 *  10.0 / -3.0 = -3.3333333333333335

 *  10.0 % -3.0 = 1.0

 *

 *  % java DoubleOps Infinity 3

 *  Infinity + 3.0 = Infinity

 *  Infinity * 3.0 = Infinity

 *  Infinity / 3.0 = Infinity

 *  Infinity % 3.0 = NaN

 *

 ******************************************************************************/

public class DoubleOps { 

    public static void main(String[] args) {

        double a = Double.parseDouble(args[0]);

        double b = Double.parseDouble(args[1]);

        double sum  = a + b;

        double prod = a * b;

        double quot = a / b;

        double rem  = a % b;

        System.out.println(a + " + " + b + " = " + sum);

        System.out.println(a + " * " + b + " = " + prod);

        System.out.println(a + " / " + b + " = " + quot);

        System.out.println(a + " % " + b + " = " + rem);

        System.out.println();

        System.out.println("sin(pi/2) = " + Math.sin(Math.PI/2));

        System.out.println("log(e)    = " + Math.log(Math.E));

    }

}