Transfer Matrix using "connect" function

2018 12 10
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更新时间：2018 12 10
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Hello, I need to determine the transfer matrix for the following diagram via the "connect" function in 2 different ways (both using the connect function).
Does anyone know how can I do that?
Thank you!

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Walter Roberson
Walter Roberson 2018-12-10
You mean the transfer function of multiplying the input by 1/6 ?
Addition takes no time, so the feedback is instant. So we get
u - 5*y = y %steady state
u = 6 * y
y = u / 6
Raul Petreanu
Raul Petreanu 2018-12-10
Yes, the transfer function.
U should be a column vector. I specifically need to do this via the connect function.
Using your reasoning, what should I write in the command line?
Thank you!
Walter Roberson
Walter Roberson 2018-12-10
Do you mean https://www.mathworks.com/help/control/ref/connect.html ? "Block diagram interconnections of dynamic systems" ?
If so why would you care about doing it 2 different ways? And block diagram interconnect would not get you the transfer function.
One seldom talks about transfer functions for purely linear relationships: one would instead tend to talk about "gain". "transfer function" seems to be used only when talking about implicit laplace transforms and thus dealing with frequencies and derivatives.
Raul Petreanu
Raul Petreanu 2018-12-10
编辑：Raul Petreanu 2018-12-10
I am a beginner to Matlab, and this is the first homework regarding it from University.
Yes, indeed, "Block diagram interconnections of dynamic systems" is the closest I found regarding my question. In this case "gain" would be more appropiate.
Using 2 methods, I suppoose using the Index-Based Interconnection and a Feedback Loop.
So is there a way of using the aforementioned "connect" fucntion?
Thank you!

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