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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	const int n = 3;
  6. 	public static void Main()
  7. 	{
  8. 		double[,] A = {{1,2,4,0},
  9. 				       {2,1,5,1},
  10. 				       {1,4,2,2}};
  11.  
  12. 		for(var j = 0; j < n; j++){ 
  13. 			for(var i = j+1; i < n; i++){
  14. 				var m = A[i,j] / A[j,j];
  15. 				for(var k = j; k < n+1; k++){
  16. 					A[i,k] -= m*A[j,k]; 
  17. 				}
  18. 			}
  19. 		}
  20.  
  21. 		for(var i = n-1; i >= 0; i--){ 
  22. 			for(var j = i+1; j < n+1; j++){
  23. 				A[i,j] /= A[i,i];
  24. 			}
  25. 			A[i,i] = 1;
  26. 			for(var j = i - 1; j >= 0; j-- ){
  27. 				var m = A[j,i] / A[i,i];
  28. 				for(var k = 0; k < n+1; k++){
  29. 					A[j,k] -= m*A[i,k]; 
  30. 				}
  31. 			}
  32. 		}
  33.  
  34. 		for(var i = 0; i < n; i++){
  35. 			for(var j = 0; j < n+1; j++){
  36. 				Console.Write(A[i,j]+" ");
  37. 			}
  38. 			Console.WriteLine();
  39. 		}
  40. 	}
  41. }
Success #stdin #stdout 0s 131648KB
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stdin
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Standard input is empty
stdout
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1 0 0 2 
0 1 0 0.333333333333333 
0 0 1 -0.666666666666667
https://ideone.com/z7nvWC
language:
C# (gmcs 5.20.1)
created:
7 years ago
visibility:
public

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