Could you please give an example about it in Eigen or Armadillo format? It's hard for me to understand how to add shifts_f and access eigenvalues. Thanks a lot.

In this work, we present a computational method for solving eigenvalue problems of fourth-order ordinary differential equations which based on the use of Chebychev method. The efficiency of the method ...

In this paper we present a new subspace iteration for calculating a cluster of k exterior eigenvalues of a given symmetric matrix,. Other names for such eigenvalues are “peripheral eigenvalues” and ...

This repository explores various properties of matrices, including determinant calculation, eigenvalues, eigenvectors, and matrix operations such as addition, multiplication, and inversion. It serves ...