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

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)

[Walter Roberson]

Which release are you using? Passing character vectors to solve() has not been permitted since R2018b or so.

Answer 1

[Sai Sri Pathuri]

You may refer the following documentation to get transfer function of Theta (using Symbolic Math and solve command)

https://www.mathworks.com/help/symbolic/solve-differential-equations-using-laplace-transform.html