本章教学重点
1
A B Q
2 KCL KVL
3
15-1
(1) Q
(2) Q G
4 3
21
5
6
1
34
2
5
6
Q1,{ 2,5,4,6 }
Q G
4 3
21
5
6
4 3
21
5
6
4 3
21
5
6
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KCL
KCL
KCL
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21
5
6
4 3
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5
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5
6
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n
b n-1
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2
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aij
aij = 1 j i i
aij= -1 j i i
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6
4
5
3
21
Aa=
1
2
3
4
1 2 3 4 5 6
1 0 0 -1 0 1
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2
3
4
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0
0
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:
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4
5
3
21
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5
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1
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1 j i i
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1,
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1
2
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= [ Bt 1 ]
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T
lt uu
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3
4
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1
A B Q
2 KCL KVL
3
15-1
(1) Q
(2) Q G
4 3
21
5
6
1
34
2
5
6
Q1,{ 2,5,4,6 }
Q G
4 3
21
5
6
4 3
21
5
6
4 3
21
5
6
Q4,{ 1,5,2 }Q3,{ 1,4 6}Q2,{ 2,3,6 }
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KCL
KCL
4 3
21
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4 3
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5
6
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b n-1
n-1
2
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aij
aij = 1 j i i
aij= -1 j i i
aij =0 j i
Aa={aij}n? b
6
4
5
3
21
Aa=
1
2
3
4
1 2 3 4 5 6
1 0 0 -1 0 1
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0 1 1 0 0 -1
0 0 -1 1 -1 0
Aa=
1
2
3
4
1 2 3 4 5 6
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0
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2
3
1 2 3 4 5 6
1 0 0 -1 0 1
0 1 1 0 0 -1
A (n-1)?b
:
6
4
5
3
21
-1 -1 0 0 1 0A=
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2
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1 0 0 -1 0 1
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5
4
3
2
1
u
u
u
u
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6
5
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1
i
i
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3
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n
n
n
n
u
u
u
u
KCL
Ai =
632
521
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iii
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6
5
4
3
2
1
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i
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6
4
5
3
21
A i = 0
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3
32
21
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1 j i i
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1
2
3
B =
4 5 6 1 2 3
1 -1 0 1 0 0
1 -1 1 0 1 0
= [ Bt 1 ]
Tiiiiiii ] [][ 321654?
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T
lt uu
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Bt Bl
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