symbolic matrix help converting

syms j w C R h11 h12 h21 h22
%matrix i would like to solve ABCD=[1 (1/(j*w*C))+R; 0 1]
%formular to converting ABCD to h para
A=((h11*h22)-(h12*h21))/h21
B=-h11/h21
C=-h22/h21
D=-1/h21
ABCD=[A B;C D]

i have problem trying to get a matrix from the original matrix(ABCD=[1 (1/(j*w*C))+R; 0 1])

using the formular

A=((h11*h22)-(h12*h21))/h21
B=-h11/h21
C=-h22/h21
D=-1/h21

please help

Answer 1

[Star Strider]

One problem is that ‘C’ is being used to designate the capacitor, and also the ‘ABCD’ (2,1) element. Designating the capacitor as ‘Cc’ removes that ambiguity —

syms  w Cc R h11 h12 h21 h22
%matrix i would like to solve ABCD=[1 (1/(j*w*Cc))+R; 0 1]
%formular to converting ABCD to h para
A=((h11*h22)-(h12*h21))/h21

A = 

B=-h11/h21

B = 

C=-h22/h21

C = 

D=-1/h21

D = 

ABCD=[A B;C D]

ABCD = 

ABCD = simplify(ABCD, 500)

ABCD = 

S = ABCD == [1 (1/(1j*w*Cc))+R; 0 1]

S = 

[h11 h12 h21 h22] = solve(S,[h11 h12 h21 h22])

h11 = 

h12 = 

h21 = 

h22 = 

0

I also removed ‘j’ and replaced it with the imaginary operator ‘1j’ (that now appears as i) for clarity.

.