symbolic state space representation & transfer function

How to enter state space model symbolically and convert it to a symbolic transfer function as well?

Thanks in advance

[Azzi Abdelmalek]

What do you mean?

[Abdulaziz AlKuwari]

Let the A matrix for example to be A = [X Y, Q Z] If I entered the symbols and tried to transfer the State space representation of the model to a transfer Function, MATLAB will generate an error saying that X, Y,and Z are not defined. I need yo move from state space to transfer function symbolically (without initializing X, Y, Z,..)

I Wish it is clear

Answer 1

[Ryan G]

Symbolic representation is not compatible with the controls tools. You would have to do this manually.

[Abdulaziz AlKuwari]

Thank you :(

Answer 2

[waell telmesani]

Hi Abdulaziz

This link will help you to do that: http://lpsa.swarthmore.edu/Representations/SysRepTransformations/TF2SS/html/SStoTFsym.html

Good luck

[li hu]

How about now ?