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From: Y. Yeh on 3 Mar 2010 22:20
Hi all:

I am trying to fit aircraft data to a specific model structure. I know using the toolbox I can set certain parameters, for example:

Alon = [ NaN NaN 0 -9.81; NaN NaN NaN 0; NaN NaN NaN 0; 0 0 1 0];

All you aero people will recognize this as the standard form for a continuous-time linear state-space model of the longitudinal mode of an aircraft.

However, I have only been able to set this as a _discrete_ time model, which gives the wrong results.

I've searched the documentation and I haven't found if there is a way to set the structure as a continuous time model.

I'm sure many people have tried this before.

If you need clarification I'll be glad to explain further.

Thank you!
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