package calculator;
import java.util.Scanner;
import java.lang.Math;
public class ex {

     public ex(){
    	 
    	 Scanner input= new Scanner(System.in);
        
    		System.out.print("请输入数字x：");
    		int x=input.nextInt();
            double e=Math.E;
            double n=Math.pow(e, x);
    	
 
    	System.out.printf("结果为%.9f\n",n);
     }
}