Use symbolic math in MATLAB and the ‘solve’ command to get the transfer function

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Zain Adtani
Zain Adtani on 4 May 2020
Commented: Walter Roberson on 7 May 2020
This is a example problem but when I run it it gives an error
>> syms s F
>> H=solve('(2.45*s^2+0.98*s+9.8)*Th+s^2*Z=0',
... '(12*s^2+720*s+1200)*Z+3.5*s^2*Th=F','Z,Th');
>> h=collect(H.Th,s);
>> h=collect(h,F);
>> pretty(h)
  1 Comment
Walter Roberson
Walter Roberson on 7 May 2020
Which release are you using? Passing character vectors to solve() has not been permitted since R2018b or so.

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