A={{-(R2+R3)/(C1*M),R3/(C1*M),R2/(C1*M)},{R3/(C2*M),-(R1+R3)/(C2*M),R1/(C2*M)},{R2/(C3*M),R1/(C3*M),-(R1+R2)/(C3*M)}}
,,,,,,,,
-R2-R3
C1M
R3
C1M
R2
C1M
R3
C2M
-R1-R3
C2M
R1
C2M
R2
C3M
R1
C3M
-R1-R2
C3M
MatrixForm[A]
-R2-R3 C1M | R3 C1M | R2 C1M |
R3 C2M | -R1-R3 C2M | R1 C2M |
R2 C3M | R1 C3M | -R1-R2 C3M |
Lam=Eigenvalues[A]
0,-C1C2R1-C1C3R1-C1C2R2-C2C3R2-C1C3R3-C2C3R3--4(C2C3R1R2+C1C3R1R2+C1C2R1R2+C2C3R1R3+C1C3R1R3+C1C2R1R3+C2C3R2R3+C1C3R2R3+C1C2R2R3),-C1C2R1-C1C3R1-C1C2R2-C2C3R2-C1C3R3-C2C3R3+-4(C2C3R1R2+C1C3R1R2+C1C2R1R2+C2C3R1R3+C1C3R1R3+C1C2R1R3+C2C3R2R3+C1C3R2R3+C1C2R2R3)
1
2C1C2C3M
2
(C1C2R1+C1C3R1+C1C2R2+C2C3R2+C1C3R3+C2C3R3)
2
C1
2
C2
2
C3
2
C1
2
C2
2
C3
2
C1
2
C2
2
C3
1
2C1C2C3M
2
(C1C2R1+C1C3R1+C1C2R2+C2C3R2+C1C3R3+C2C3R3)
2
C1
2
C2
2
C3
2
C1
2
C2
2
C3
2
C1
2
C2
2
C3
P=Eigenvectors[A]
C1=0.078C2=0.078C3=0.078
0.078
0.078
0.078
R1=0.0152R2=0.0152R3=0.0304
0.0152
0.0152
0.0304
M=0.0011552
0.0011552
Lam
{0,-843.455,-506.073}
P
{{1,1,1},{3.31899×,-4.30778×,1},{-0.5,-0.5,1}}
15
10
15
10