exercise4_25.java

Introduction to java programming 一书中所有编程练习部分的源码

public class Exercise4_25 {
    public static void main(String[] args) {
        System.out.println("i\t\tm(i)");
        for (int i = 2; i <= 20; i++)
            System.out.println(i + "\t\t" + m(i));
    }
    
    public static double m(int i) {
        double sum = 0;
        if (i == 2)
            return 1.0 / 2;
        else 
            return m(i - 1) + (i - 1) * 1.0 / i;
    }
}