Eigen Value and Eigen Vector of a matrix by Iterative Method- C++ Program

using namespace std;
int main()
    int n,i,j;
    cout<<"\nEnter the order of the matrix:\n";        //Get the order of the square matrix
    double a[n][n],b[n],c[n],k,eps,y;            //declare arrays and other variables to be used
    cout<<"\nEnter the elements of matrix row-wise:\n";
    for (i=0;i>a[i][j];
    cout<<"\nEnter the initial values of the eigen-vector:\n";
    for (i=0;i>b[i];
    cout<<"\nEnter the accuracy desired:\n";       
    k=b[0];                            //Assign some initial value to the eigen value, 'k'
        for (i=0;ik?abs(c[i]):k;        //Find the largest element of c and assign it to k where k is the eigen value
        for (i=0;ieps);                    //Check if the error in eigen value is within the tolerance limit
    cout<<"The eigen-value is: "<
c++ program eigen value eigen vector eigenvalue eigenvector iterative method numerical analysis
Sample Output

PhD researcher at Friedrich-Schiller University Jena, Germany. I'm a physicist specializing in computational material science. I write efficient codes for simulating light-matter interactions at atomic scales. I like to develop Physics, DFT and Machine Learning related apps and softwares from time to time. Can code in most of the popular languages. Like to share my knowledge in Physics and applications using this Blog and a YouTube channel.
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One thought on “Eigen Value and Eigen Vector of a matrix by Iterative Method- C++ Program

  1. Hi My name is Milad, I need code c++ for computing sparse matrix and Eigenvalue and eigenvector, can you help me?

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