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Tutorials MySQL & C, C++ Numerical Methods: Inverse of nxn matrix using C - tutorial advance
Tutorials MySQL & C, C++ Numerical Methods: Inverse of nxn matrix using C - tutorial advance
Numerical Methods: Inverse of nxn matrix using C
destination source:https://www.programming-techniques.com/?p=212
Source Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | #include<stdio.h> int main(){ float matrix[10][10], ratio,a; int i, j, k, n; printf("Enter order of matrix: "); scanf("%d", &n); printf("Enter the matrix: \n"); for(i = 0; i < n; i++){ for(j = 0; j < n; j++){ scanf("%f", &matrix[i][j]); } } for(i = 0; i < n; i++){ for(j = n; j < 2*n; j++){ if(i==(j-n)) matrix[i][j] = 1.0; else matrix[i][j] = 0.0; } } for(i = 0; i < n; i++){ for(j = 0; j < n; j++){ if(i!=j){ ratio = matrix[j][i]/matrix[i][i]; for(k = 0; k < 2*n; k++){ matrix[j][k] -= ratio * matrix[i][k]; } } } } for(i = 0; i < n; i++){ a = matrix[i][i]; for(j = 0; j < 2*n; j++){ matrix[i][j] /= a; } } printf("The inverse matrix is: \n"); for(i = 0; i < n; i++){ for(j = n; j < 2*n; j++){ printf("%.2f", matrix[i][j]); printf("\t"); } printf("\n"); } return 0; } |
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destination source:https://www.programming-techniques.com/?p=212
