80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
|
#include<iostream>
|
||
|
|
#include<conio.h>
|
||
|
|
|
||
|
|
using namespace std;
|
||
|
|
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
float a[10][10], b[10], x[10], y[10];
|
||
|
|
int n = 0, m = 0, i = 0, j = 0;
|
||
|
|
cout << "Enter size of 2d array(Square matrix) : ";
|
||
|
|
cin >> n;
|
||
|
|
for (i = 0; i < n; i++)
|
||
|
|
{
|
||
|
|
for (j = 0; j < n; j++)
|
||
|
|
{
|
||
|
|
cout << "Enter values no :(" << i << ", " << j << ") ";
|
||
|
|
cin >> a[i][j];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
cout << "\nEnter Values to the right side of equation\n";
|
||
|
|
for (i = 0; i < n; i++)
|
||
|
|
{
|
||
|
|
cout << "Enter values no :(" << i << ", " << j << ") ";
|
||
|
|
cin >> b[i];
|
||
|
|
}
|
||
|
|
cout << "Enter initial values of x\n";
|
||
|
|
for (i = 0; i < n; i++)
|
||
|
|
{
|
||
|
|
cout << "Enter values no. :(" << i<<"):";
|
||
|
|
cin >> x[i];
|
||
|
|
}
|
||
|
|
cout << "\nEnter the no. of iteration : ";
|
||
|
|
cin >> m;
|
||
|
|
while (m > 0)
|
||
|
|
{
|
||
|
|
for (i = 0; i < n; i++)
|
||
|
|
{
|
||
|
|
y[i] = (b[i] / a[i][i]);
|
||
|
|
for (j = 0; j < n; j++)
|
||
|
|
{
|
||
|
|
if (j == i)
|
||
|
|
continue;
|
||
|
|
y[i] = y[i] - ((a[i][j] / a[i][i]) * x[j]);
|
||
|
|
x[i] = y[i];
|
||
|
|
}
|
||
|
|
printf("x%d = %f ", i + 1, y[i]);
|
||
|
|
}
|
||
|
|
cout << "\n";
|
||
|
|
m--;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Enter size of 2d array(Square matrix) : 3
|
||
|
|
Enter values no :(0, 0) 2
|
||
|
|
Enter values no :(0, 1) 3
|
||
|
|
Enter values no :(0, 2) 1
|
||
|
|
Enter values no :(1, 0) 5
|
||
|
|
Enter values no :(1, 1) 4
|
||
|
|
Enter values no :(1, 2) 6
|
||
|
|
Enter values no :(2, 0) 8
|
||
|
|
Enter values no :(2, 1) 7
|
||
|
|
Enter values no :(2, 2) 9
|
||
|
|
|
||
|
|
Enter Values to the right side of equation
|
||
|
|
Enter values no :(0, 3) 2
|
||
|
|
Enter values no :(1, 3) 3
|
||
|
|
Enter values no :(2, 3) 4
|
||
|
|
|
||
|
|
Enter initial values of x
|
||
|
|
Enter values no. :(0): 0
|
||
|
|
Enter values no. :(1): 0
|
||
|
|
Enter values no. :(2): 0
|
||
|
|
|
||
|
|
Enter the no. of iteration : 4
|
||
|
|
x1 = 1.000000 x2 = -0.500000 x3 = -0.055556
|
||
|
|
x1 = 1.777778 x2 = -1.388889 x3 = -0.055556
|
||
|
|
x1 = 3.111111 x2 = -3.055555 x3 = 0.055555
|
||
|
|
x1 = 5.555555 x2 = -6.277777 x3 = 0.388889
|