王彥甯

1. public class JPA01 {
   
2.     public static void main(String args[]){
   
3.             double x;
   
4.             x = -3.2;
   
5.             System.out.printf("f(%.1f)=%.4f\n",x,f(x));
   
6.             x = -2.1;
   
7.             System.out.printf("f(%.1f)=%.4f\n",x,f(x));
   
8.             x = 0;
   
9.             System.out.printf("f(%.1f)=%.4f\n",x,f(x));
   
10.             x=2.1;
    
11.             System.out.printf("f(%.1f)=%.4f\n",x,f(x));
    
12.     }
    
13. 
    
14.         private static Object f(double x) {
    
15.                 // TODO Auto-generated method stub
    
16.                 return 3*(Math.pow(x, 3))+2*x-1;
    
17.         }
    
18.    
    
19. }

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