题解 | #求绝对值，平方根，对数，正弦值#

import java.util.Scanner;

public class Main { public static void main(String[] args) { Scanner scanner=new Scanner(System.in); double num = scanner.nextDouble();

    //write your code here......
    System.out.println(Math.abs(num));
    System.out.println(Math.sqrt(num));
    System.out.println(Math.log(num));
    System.out.println(Math.sin(num));
}

}