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GrowGen | 给我整 | 矩阵
矩阵
∣kA∣=kn∣A∣
(kA)T=kAT
(A+B)T=AT+BT
AA∗=A∗A
A∗=∣A∣A−1
AA∗=∣A∣E
∣A∗∣=∣A∣n−1
A−1=∣A∣1A∗
A=∣A∣(A∗)−1
(kA)(kA)∗=∣kA∣E
AT(AT)∗=∣AT∣E
A−1(A−1)∗=∣A−1∣E
A∗(A∗)∗=∣A∗∣E
(AT)∗=(A∗)T
(A−1)∗=(A∗)−1
(AB)∗=B∗A∗
(A∗)∗=∣A∣n−2A
∣∣A∣∣=∣A∣
(AT)T=A
(A−1)−1=A
(A∗)∗=∣A∣n−2A
(kA)−1=k1A−1
(kA)∗=kn−1A∗
∣AB∣=∣A∣∣B∣
(AB)T=BTAT
(AB)−1=B−1A−1
(AB)∗=B∗A∗
((A−1))T=(AT)−1
(A−1)∗=(A∗)−1
(A∗)T=(AT)∗
∣AT∣=∣A∣
∣A−1∣=∣A∣−1
∣A∗∣=∣A∣n−1
∣A+B∣=∣A∣+∣B∣
(A+B)T=AT+BT
A=(BDOC),A−1=(B−1−CDB−1OC−1)
A=(BODC),A−1=(B−1O−B−1DC−1C−1)
A=(OCBD),A−1=(−C−1DB−1B−1c−1O)
A=(DCBO),A−1=(OB−1c−1−B−1DC−1)
0≤r(A)≤min{m,n}
r(AB)=min{r(A),r(B)}
r(A+B)≤r(A)+r(B)
r(A∗)=⎩⎨⎧n,r(A)=n1,r(A)=n−10,r(A)<n−1