Chapter 1 Question 1.7, Introduction to Java Programming, Tenth Edition Y. Daniel LiangY.

(Approximate π) π can be computed using the following formula: 

             π = 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + ...)

Write a program that displays the result of 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11) and 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + 1/13). 

Use 1.0 instead of 1 in your program. 

Answer

/**

Program - 07

 

Write a program that displays the result of 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11) and 4 * (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + 1/13).

Use 1.0 instead of 1 in your program.

   

**/

public class HelloWorld

{

    public static void main(String args[])

    {    

   

        System.out.println(4 * (1.0 - (1 / 3) + (1 / 5) -

        (1 / 7) + (1 / 9) - (1 / 11)));

       

        System.out.println(4 * (1.0 - (1 / 3) + (1 / 5) - (1 / 7) +

        (1 / 9) - (1 / 11) + (1 / 13)));

    }

}

OUTPUT

4.0

4.0