1 /**
2 * @author 冰樱梦
3 * 时间：2018年下半年
4 * 题目：数列求和
5 *
6 */
7 public class Exercise06_13 {
8 public static void main(String[] args){
9 System.out.printf("%-10s%-12s","i","m(i)" );
10 System.out.println("\n————————————————————————————————————————————————");
11 for(int i=1;i<=20;i++){
12 System.out.printf("%-10d%-10.4f \n",i,caculateSum(i) );
13 }
14 }
15 public static double caculateSum(double number){
16 double sum=0;
17 for(int i=1;i<=number;i++){
18 sum+=number/(number+1);
19 }
20 return sum;
21 }
22
23 }
