0 个投票

Dear Community,
I am trying to understand how works root(P), being P a polynomial. As far as I know, MATLAB uses the companion matrix of P and after it uses QR factorization to get the roots. However, I do not know which QR factorization method it uses. Is it householder QR method?
Thanks so much for your help,
Estanis

请先登录，再回答此问题。

回答（1 个）

Neil Guertin
Neil Guertin 2017-8-11

0 个投票

According to the documentation, "The roots of the polynomial are calculated by computing the eigenvalues of the companion matrix". Eigenvalues are calculated using LAPACK functions.

类别

在 帮助中心 和 File Exchange 中查找有关 Polynomials 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by