并聯電阻計算阻滯詳細手打

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

double r1 = scanner.nextDouble();

double r2 = scanner.nextDouble();

System.out.printf("%.2f",1/(1/r1 + 1/r2));

}

}