C program for solving gauss seidal method?

Answer 1

#include<stdio.h>

int main()

{

double matrix[10][10],a,b, temp[10];

int i, j, k, n;

printf("Enter the no of variables: ");

scanf("%d", &n);

printf("Enter the agumented matrix:\n");

for(i = 0; i < n ; i++){

for(j = 0; j < (n+1); j++){

scanf("%lf", &matrix[i][j]);

}

}

for(i = 0; i < n; i++){

for(j = 0; j < n; j++){

if(j>i){

a = matrix[j][i];

b = matrix[i][i];

for(k = 0; k < n+1; k++){

matrix[j][k] = matrix[j][k] - (a/b) * matrix[i][k];

}

}

}

}

printf("The Upper triangular matrix is: \n");

for( i = 0; i < n; i++){

for(j = 0; j < n+1; j++){

printf("%.2f", matrix[i][j]);

printf("\t");

}

printf("\n");

}

printf("\nThe required result is: ");

for(i = n-1; i>=0; i--){

b = matrix[i][n];

for(j = n-1 ; j > i; j--){

b -= temp[n-j]*matrix[i][j];

}

temp[n-i] = b/matrix[i][i];

printf("\n%c => %.2f",97+i, temp[n-i]);

}

}

Answer 2

Numerical methods gauss elimination and gauss Jordan method?