線代啟示錄 | I seek not to know the answers, but to understand the questions.
方陣的特徵值積與奇異值積有何關係? Let be an matrix. Show that , where and are the eigenvalues and singular values of , respectively. ... 證明排列矩陣 (permutation matrix) 的轉置即為其逆矩陣。 A permutation matrix is a matrix that has exactly one 1 in each ......