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特征值和特征向量的计算方法
对于任何给定方阵

$\mathbf{A}$ ，特征值

$\lambda$ 都一定满足

$\det(\mathbf{A}-\lambda\mathbf{I})=\mathbf{0}$ 并且特征向量

$x$ 满足

$(\mathbf{A}-\lambda\mathbf{I})x=0$

status	not learned	measured difficulty	37% [default]	last interval [days]
repetition number in this series	0	memorised on		scheduled repetition
scheduled repetition interval		last repetition or drill

No repetitions

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