The Calculation of Multiple Eigenvalues for Matrix
Ye Qing-kai · Control theory & applications · 1998
There are two kinds of method to calculate the eigenvalues of a matrix:characteristic polynomial method and QR method. In this paper,we combine with these two methods to provide a new method,which can obtain the multiplex eigenvalues. The programming,written by Borland C++,is given. The numerical example shows, if the matrix has multiplex eigenvalues, our method is better than MATLAB or MATHEMATICA.