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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	static double f(double x)
  8. 	{
  9. 	   return 9.2*x*x*x+3.3*x*x+4*x-1; 
  10. 	}
  11.  
  12. 	public static void main (String[] args) throws java.lang.Exception
  13. 	{
  14. 		Scanner  in = new Scanner(System.in);
  15. 		double x, eps, x0, x1, x2, d;
  16. 		x = in.nextDouble();
  17. 		eps = in.nextDouble();
  18. 		do{
  19. 			x0=x;
  20. 			x1=f(x0);
  21. 			x2=f(x1);
  22. 			d=x0-2*x1+x2;
  23. 			if (d!=0)
  24. 			{
  25. 				x=(x0*x2-x1*x1)/d;
  26. 			}
  27. 			else break;
  28.     	} 	
  29.     	while(Math.abs(x-x0)>eps);
  30.     	System.out.print(x+" "); 
  31. 	}
  32. }
Success #stdin #stdout 0.17s 321344KB
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stdin
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-4 0.0005
stdout
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-3.999806151275519
https://ideone.com/CDNaNR
ю11.3
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
secret

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