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  1.  
  2. import java.util.Scanner;
  3. class determinant5 {
  4. 	public static void main(String[] args) {
  5. 		Scanner hs=new Scanner(System.in);
  6. 		int n=5;
  7. 		int i,j ;
  8. 		double arr[][]=new double[n][n];
  9. 		for( i=0;i<n;i++) {
  10. 			for( j=0;j<n;j++) {
  11. 				System.out.println("enter the element a[ "+(i+1)+","+(j+1)+"]");
  12. 				arr [i][j]=hs.nextInt();
  13. 			}
  14. 		}
  15. 		System.out.println("the matrix form is :");
  16. 		for( i=0;i<n;i++) {
  17. 			for( j=0;j<n;j++) {
  18.  
  19. 				System.out.print(arr[i][j]+"\t");
  20. 			}
  21. 			System.out.println();
  22. 		}
  23. 		double arr1[][]=new double[n][n];
  24. 		for(i=1;i<n;i++) {
  25. 			for(j=1;j<n;j++) {
  26. 				arr1[i][j]=arr[0][j]-((arr[0][0]/arr[i][0])*arr[i][j]);
  27. 			}	
  28. 		}
  29. 		double arr2[][]=new double[n][n];
  30. 		for(i=2;i<n;i++) {
  31. 			for(j=2;j<n;j++) {
  32. 				arr2[i][j]=arr1[1][j]-((arr1[1][1]/arr1[i][1])*arr1[i][j]);	
  33. 			}		
  34. 	}
  35. 		double arr3[][]=new double[n][n];
  36. 		for(i=3;i<n;i++) {
  37. 			for(j=3;j<n;j++) {
  38. 				arr3[i][j]=arr2[2][j]-((arr2[2][2]/arr2[i][2])*arr2[i][j]);
  39.  
  40. 			}
  41.  
  42. 	}
  43. 		double arr4[][]=new double[n][n];
  44. 		for(i=4;i<n;i++) {
  45. 			for(j=4;j<n;j++) {
  46. 				arr4[i][j]=arr3[3][j]-((arr3[3][3]/arr3[i][3])*arr3[i][j]);
  47.  
  48. 			}
  49. 			System.out.println();
  50. 	}
  51. 	double k=arr[0][0]*arr1[1][1]*arr2[2][2]*arr3[3][3]* arr4[4][4];
  52. 	System.out.println("the determinant is: "+k);
  53.  
  54. 		}
  55. }
Success #stdin #stdout 0.17s 57576KB
comments (?)
stdin
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1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
stdout
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enter the element a[ 1,1]
enter the element a[ 1,2]
enter the element a[ 1,3]
enter the element a[ 1,4]
enter the element a[ 1,5]
enter the element a[ 2,1]
enter the element a[ 2,2]
enter the element a[ 2,3]
enter the element a[ 2,4]
enter the element a[ 2,5]
enter the element a[ 3,1]
enter the element a[ 3,2]
enter the element a[ 3,3]
enter the element a[ 3,4]
enter the element a[ 3,5]
enter the element a[ 4,1]
enter the element a[ 4,2]
enter the element a[ 4,3]
enter the element a[ 4,4]
enter the element a[ 4,5]
enter the element a[ 5,1]
enter the element a[ 5,2]
enter the element a[ 5,3]
enter the element a[ 5,4]
enter the element a[ 5,5]
the matrix form is :
1.0	1.0	1.0	1.0	1.0	
1.0	1.0	1.0	1.0	1.0	
1.0	1.0	1.0	1.0	1.0	
1.0	1.0	1.0	1.0	1.0	
1.0	1.0	1.0	1.0	1.0	

the determinant is: NaN
https://ideone.com/25vCFS
language:
Java (HotSpot 12)
created:
2 years ago
visibility:
public

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