补充做题总结
continuous-integration/drone/push Build is passing
Details
continuous-integration/drone/push Build is passing
Details
parent
2ea6f435b0
commit
2f34c3c5af
|
@ -326,6 +326,7 @@ $
|
||||||
* $A \cdot A* = A* \cdot A = |A| \cdot E$
|
* $A \cdot A* = A* \cdot A = |A| \cdot E$
|
||||||
* $|A| = \prod_{i=1}^n\lambda_i(\lambda_1,\lambda_2,\cdots,\lambda_n是A的全部特征值)$
|
* $|A| = \prod_{i=1}^n\lambda_i(\lambda_1,\lambda_2,\cdots,\lambda_n是A的全部特征值)$
|
||||||
* $|A|\not ={0}\iff A$为可逆矩阵$\iff$A为满秩矩阵,即$r(A) = n$
|
* $|A|\not ={0}\iff A$为可逆矩阵$\iff$A为满秩矩阵,即$r(A) = n$
|
||||||
|
* 二维矩阵的伴随矩阵为:主对角线互换,副对角线变号
|
||||||
|
|
||||||
---
|
---
|
||||||
## 矩阵
|
## 矩阵
|
||||||
|
@ -900,6 +901,7 @@ $$
|
||||||
* $A\cong B$则$B \cong A$
|
* $A\cong B$则$B \cong A$
|
||||||
* $A\cong B,B \cong C 则 A\cong C$
|
* $A\cong B,B \cong C 则 A\cong C$
|
||||||
* 同型矩阵A与B等价$\iff r(A)=R(B)$
|
* 同型矩阵A与B等价$\iff r(A)=R(B)$
|
||||||
|
* 矩阵等价问题通常考虑化为阶梯型矩阵后r(A)=R(B)
|
||||||
|
|
||||||
|
|
||||||
##### 相似
|
##### 相似
|
||||||
|
|
Loading…
Reference in New Issue