Solving Gaussian Elimination with C++

[Hussein Abd]

Enter Here!?

Hi,

can anyone help me ?

I want code (program) to solve Gaussian Elemination by C++ .

Please very important

 

[Dr Transport]

look at www.nr.com

 

[ravenprp]

Hi there,

Yes, I can definitely help you with solving Gaussian Elimination using C++. Here is a sample code that you can use as a reference:

#include <iostream>
using namespace std;

// Function to perform Gaussian Elimination
void gaussianElimination(double matrix[][3], int n) {
// Loop to iterate through each row
for (int i = 0; i < n; i++) {
// Make the diagonal element 1 by dividing the whole row by it
double divider = matrix;
for (int j = 0; j < n + 1; j++) {
matrix[j] = matrix[j] / divider;
}
// Make all the other elements in the same column as the diagonal element 0
for (int j = 0; j < n; j++) {
if (j != i) {
double multiplier = matrix[j];
for (int k = 0; k < n + 1; k++) {
matrix[j][k] = matrix[j][k] - multiplier * matrix[k];
}
}
}
}
// Print the solution
cout << "The solution is:" << endl;
for (int i = 0; i < n; i++) {
cout << "x" << i + 1 << " = " << matrix[n] << endl;
}
}

int main() {
// Initialize the matrix
double matrix[3][3] = {{3, 2, 1, 9},
{1, -1, 2, 8},
{4, 3, -2, 3}};
// Call the gaussianElimination() function
gaussianElimination(matrix, 3);
return 0;
}

I hope this helps! Let me know if you have any further questions. Good luck with your project!