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  1. import java.util.*;
  2.  
  3. class Main
  4. {
  5. 	public static void main (String[] args) throws java.lang.Exception
  6. 	{
  7. 		Scanner scan = new Scanner(System.in);
  8. 		int e=1;
  9. 		double t, o=0;
  10. 		int n = scan.nextInt();
  11. 		double x = scan.nextDouble();
  12.  
  13. 		for (int j=1; j<(n+1); j++){
  14. 			t=Math.sin(j*x);
  15. 			e*=2;
  16. 			o+=t/e;
  17. 		}
  18.  
  19. 		System.out.printf("%1$.6f", o);
  20. 	}
  21. }
Success #stdin #stdout 0.12s 31428KB
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10	0.523598
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0.651170
https://ideone.com/bogIvR
D2574
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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