Would you like me to add anything? Or is there something specific you'd like to know?
You can find the pdf version of the book online; however, be aware that some versions might be unavailable due to copyright restrictions. parlett the symmetric eigenvalue problem pdf
Parlett, B. N. (1998). The symmetric eigenvalue problem. SIAM. Would you like me to add anything
Here's a write-up based on the book:
The basic idea of the QR algorithm is to decompose the matrix A into the product of an orthogonal matrix Q and an upper triangular matrix R, and then to multiply the factors in reverse order to obtain a new matrix A' = RQ. The process is repeated until convergence. parlett the symmetric eigenvalue problem pdf