无证明,小记。
\[\det \begin{bmatrix} a_0&a_1&a_2&\cdots&a_{n-1}\\ a_{n-1}&a_0&a_1&\cdots&a_{n-2}\\ a_{n-2}&a_{n-1}&a_0&\cdots&a_{n-3}\\ \vdots&\vdots&\vdots&\ddots&\vdots\\ a_1&a_2&a_3&\cdots&a_0\\ \end{bmatrix} = \sum_{i=0}^{n-1}a_i\omega_n^i\] 标签:矩阵,笔记,cdots,行列式,bmatrix,vdots From: https://www.cnblogs.com/apjifengc/p/17060634.html