北大高等代数 (2): n阶行列式

http://www.bilibili.com/mobile/video/av7336544.html?from=groupmessage

[温习前课: ]

第一课:   二元阶det 公式: 

第二课: n元阶 det

|A| = det A

第三课: 上三角矩阵 Upper Triangular Matrix (M)

\boxed {det M = a_{11}a_{22}a_{33}...a_{nn}}

第四课: A' = A^{T} \text { : A Transposed}

\boxed {| A| = |A ^{T}|}

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s