Numeric :Gauss Seidel

 

Gauss Seidel

 

#include<stdio.h>

int main()

{

    double a[50],b[50],c[50],X1,X2,X3,eax1,eax2,eax3,p,q,r;

    int i,n=4;

   // freopen("input.txt","r",stdin);

//printf("Enter length :");

//scanf("%d",&n);

//............................

printf("Enter 1st equation :");

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

{

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

}

//..........................

printf("Enter 2nd equation :");

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

{

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

}

//...........................

printf("Enter 3rd equation :");

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

{

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

}

printf("ENter the value of X1 :");

scanf("%lf",&X1);

printf("ENter the value of X2 :");

scanf("%lf",&X2);

printf("ENter the value of X3 :");

scanf("%lf",&X3);

//...........................

X1=p;

X2=q;

X3=r;

X1=((a[3]-(a[2]*X2)-(a[1]*X3))/a[0]);

printf("X1 is %lf\n",X1);

X2=((b[3]-(b[2]*X3)-(b[0]*X1))/b[1]);

printf("X2 is %lf\n",X2);

X3=((c[3]-(c[1]*X2)-(c[0]*X1))/c[2]);

printf("X2 is %lf\n",X3);

//...........................

eax1=(((X1-p)/X1)*100);

eax2=(((X2-q)/X2)*100);

eax3=(((X3-r)/X3)*100);

printf("eax1=%.1lf\n",eax1);

printf("eax2=%.1lf\n",eax2);

printf("eax3=%.1lf\n",eax3);

return 0;

}